Allegheny County, Pennsylvania

Allegheny County (/ælɪˈɡeɪni/) is a county in the southwest of the U.S. state of Pennsylvania. As of 2017 the population was 1,223,048, making it the state's second-most populous county, following Philadelphia County. The county seat is Pittsburgh.[2] Allegheny County is included in the Pittsburgh, PA Metropolitan Statistical Area, and in the Pittsburgh Designated Market Area.

Allegheny was Pennsylvania's first to bear a Native American name, being named after the Allegheny River. The word "Allegheny" is of Lenape origin, with uncertain meaning. It is usually said to mean "fine river", but sometimes said to refer to an ancient mythical tribe called "Allegewi" that lived along the river before being destroyed by the Lenape.[3]

Allegheny County, Pennsylvania
Flag of Allegheny County, Pennsylvania
Seal of Allegheny County, Pennsylvania
Map of Pennsylvania highlighting Allegheny County

Location within the U.S. state of Pennsylvania
Map of the United States highlighting Pennsylvania

Pennsylvania's location within the U.S.
FoundedSeptember 24, 1788
Named forAllegheny River
Largest cityPittsburgh
 • Total745 sq mi (1,930 km2)
 • Land730 sq mi (1,891 km2)
 • Water14 sq mi (36 km2), 1.9%
Population (est.)
 • (2017)1,223,048
 • Density1,675/sq mi (647/km2)
Congressional districts17th, 18th
Time zoneEastern
DesignatedDecember 30, 1982[1]
Interactive map of Allegheny County, Pennsylvania


Little is known of the region's inhabitants prior to European contact. During the colonial era, various native groups claimed or settled in the area, resulting in a multi-ethnic mix that included Iroquois, Lenape, Shawnee, and Mingo. European fur traders such as Peter Chartier established trading posts in the region in the early eighteenth century.

Darlington map of Pennsylvania 1680
1680 British map of western Pennsylvania, and Allegheny County from the Darlington Collection

In 1749, Captain Pierre Joseph Céloron de Blainville claimed the Ohio Valley and all of western Pennsylvania for Louis XV of France. The captain traveled along the Ohio and Allegheny rivers inserting lead plates in the ground to mark the land for France.

Since most of the towns during that era were developed along waterways, both the French and the British desired control over the local rivers. Therefore, the British sent Major George Washington to expel the French from their posts, with no success. Failing in this objective, he nearly drowned in the ice-filled Allegheny River while returning. The English tried in 1754 to again enter the area. They sent 41 Virginians to build Fort Prince George. The French learned of the plan and sent an army to capture the fort, which they then resumed building with increased fortification, renaming it Fort Duquesne.

The loss cost the English dearly because Fort Duquesne became a focal point of the French and Indian War. The first attempt to retake the fort, the Braddock Expedition, failed miserably.[4] It was recaptured in 1758 by British forces under General John Forbes; he had it destroyed after its capture. The British then built a new, larger fort on the site, including a moat, and named it Fort Pitt. The site is now Pittsburgh's Point State Park.

Both Pennsylvania and Virginia claimed the region that is now Allegheny County. Pennsylvania administered most of the region as part of its Westmoreland County. Virginia considered everything south of the Ohio River and east of the Allegheny River to be part of its Yohogania County and governed it from Fort Dunmore. In addition, parts of the county were located in the proposed British colony of Vandalia and the proposed U.S. state of Westsylvania. The overlapping boundaries, multiple governments, and confused deed claims soon proved unworkable. In 1780 Pennsylvania and Virginia agreed to extend the Mason–Dixon line westward, and the region became part of Pennsylvania. From 1781 until 1788, much of what had been claimed as part of Yohogania County, Virginia, was administered as a part of the newly created Washington County, Pennsylvania.

Allegheny County was officially created on September 24, 1788, from parts of Washington and Westmoreland counties. It was formed due to pressure from settlers living in the area around Pittsburgh, which became the county seat in 1791. The county originally extended north to the shores of Lake Erie; it was reduced to its current borders by 1800.

In the 1790s, a whiskey excise tax was imposed by the United States federal government. This started the so-called Whiskey Rebellion when the farmers who depended on whiskey income refused to pay and drove off tax collector John Neville. After a series of demonstrations by farmers, President George Washington sent troops to stop the rebellion.

The area developed rapidly in the 1800s to become the nation's prime steel producer; Pittsburgh gained the label "Steel Capital of the World".

In 1913 the County's 125th anniversary was celebrated with a week long chain of events, the final day September 27 was marked with a steamboat parade consisting of 30 paddle wheelers which sailed from Monongahela Wharf down the Ohio to the Davis Island Dam. The boats in line were the Steel City (formerly the Pittsburgh and Cincinnati packet Virginia), the flag ship; City of Parkersburg, Charles Brown, Alice Brown, Exporter, Sam Brown, Boaz, Raymond Horner, Swan, Sunshine, I. C. Woodward, Cruiser, Volunteer, A. R. Budd, J. C. Risher, Clyde, Rival, Voyager, Jim Brown, Rover, Charlie Clarke, Robt. J. Jenkins, Slipper, Bertha, Midland Sam Barnum, Cadet, Twilight, and Troubadour.[5]


According to the U.S. Census Bureau, the county has a total area of 745 square miles (1,930 km2), of which 730 square miles (1,900 km2) is land and 14 square miles (36 km2) (1.9%) is water.[6]

Three majors traverse Allegheny County: the Allegheny River and the Monongahela River converge at Downtown Pittsburgh to form the Ohio River. The Youghiogheny River flows into the Monongahela River at McKeesport, 10 miles (16 km) southeast. There are several islands in these courses. The rivers drain into the Gulf of Mexico via the Mississippi River. Although the county's industrial growth caused the clearcutting of the area's forests, a significant woodland remains.

Adjacent counties

Major Highways

Law and government

Until January 1, 2000, Allegheny County's government was defined under Pennsylvania's Second Class County Code. The county government was charged with all local activities, including elections, prisons, airports, public health, and city planning. All public offices were headed by elected citizens. There were three elected county commissioners.

On January 1, 2000 the Home-Rule Charter went into effect. It replaced the three elected commissioners with an elected chief officer (the County Executive), a county council with 15 members (13 elected by district, two elected county-wide), and an appointed county manager. The changes were intended to maintain a separation of powers between the executive and legislative branches while providing greater citizen control.

Allegheny County Medical Examiner jeh
County Medical Examiner office

The county has 130 self-governing municipalities, the most in the state (Luzerne is second with 76).[7] The county has one Second Class City (Pittsburgh) and three Third Class Cities (Clairton, Duquesne, and McKeesport).

A 2004 study found the county would be better served by consolidating the southeastern portion of the county (which includes many small communities with modest economies) into a large municipality ("Rivers City") with a combined population of approximately 250,000.[8]

State relations

Under the Onorato administration, Allegheny County paid $10,000 per month to Robert Ewanco, of Greenlee Partners, to lobby the Pennsylvania General Assembly.[9][10] County officials credit him with a "20-fold" return in the form of appropriations for a widening project on Pennsylvania Route 28, as well as a footbridge and security cameras at Duquesne University.[10]

County Executive

County Council

  • John DeFazio, President, At-large, Democrat
  • Tom Baker, District 1, Republican
  • Cindy Kirk, District 2, Republican
  • Anita Prizio, District 3, Democrat
  • Patrick Catena, District 4, Democrat
  • Sue Means, District 5, Republican
  • John F. Palmiere, District 6, Democrat
  • Nicholas Futules, District 7, Democrat
  • Dr. Charles Martoni, District 8, Democrat
  • Robert J. Macey, District 9, Democrat
  • DeWitt Walton, District 10, Democrat
  • Paul Klein, District 11, Democrat
  • Robert Palmosina, District 12, Democrat
  • Denise Ranalli-Russell, District 13, Democrat
  • Samuel DeMarco, III, At-large, Republican

Other elected county offices


Voter registration

As of November 7, 2017, there were 921,861 registered voters in the county; a majority were Democrats. There were 536,248 registered Democrats, 258,340 registered Republicans, 120,994 voters registered to other parties, 4,929 to the Libertarian Party and 1,350 voters registered to the Green Party.[12]

Chart of Voter Registration

  Democratic (58.17%)
  Republican (28.02%)
  NPA/Other Parties (13.12%)
  Libertarian (0.53%)
  Green (0.15%)
Voter registration and party enrollment
Party Number of voters Percentage
Democratic 536,248 58.17
Republican 258,340 28.02
Others 120,994 13.12
Libertarian 4,929 0.53
Green 1,350 0.15
Total 921,861 100%

The Republican Party had been historically dominant in county-level politics in the 19th and early 20th centuries; prior to the Great Depression, Pittsburgh and Allegheny County had been majority Republican. Since the Great Depression on the state and national levels, the Democratic Party has been dominant in county-level politics and is the Democratic stronghold of western Pennsylvania. In 2000, Democrat Al Gore won 56% of the vote and Republican George W. Bush won 41%. In 2004, Democrat John Kerry received 57% of the vote and Republican Bush received 42%. In 2006, Democrats Governor Ed Rendell and Senator Bob Casey, Jr. won 59% and 65% of the vote in Allegheny County, respectively. In 2008, Democrat Barack Obama received 57% of the vote, John McCain received 41%, and each of the three state-row office winners (Rob McCord for Treasurer, Jack Wagner for Auditor General, and Tom Corbett for Attorney General) also carried Allegheny.

State representatives

State senators

U.S. representatives


Historical population
Census Pop.
Est. 20171,223,048[13]0.0%
U.S. Decennial Census[14]
1790–1960[15] 1900–1990[16]
1990–2000[17] 2010–2017[18]

As of the 2010 census, there were 1,223,348 people residing in the county. The population density was 1676 people per square mile (647/km²). The racial makeup of the county was 82.87% White, 14.39% Black or African American, 2.94% Asian, 0.03% Pacific Islander, 0.37% from other races, and 1.40% from two or more races. About 1.31% of the population were Hispanic or Latino of any race.

At the census[19] of 2000, there were 1,281,666 people, 537,150 households, and 332,495 families residing in the county. The population density was 1,755 people per square mile (678/km²). There were 583,646 housing units at an average density of 799 per square mile (309/km²). The racial makeup of the county was 84.33% White, 12.41% Black or African American, 0.12% Native American, 1.69% Asian, 0.03% Pacific Islander, 0.34% from other races, and 1.07% from two or more races. About 0.87% of the population were Hispanic or Latino of any race. 20.0% were of German, 15.0% Italian, 12.7% Irish, 7.5% Polish and 5.1% English ancestry according to Census 2000. 93.5% spoke English and 1.3% Spanish as their first language.

There were 537,150 households out of which 26.40% had children under the age of 18 living with them, 46.10% were married couples living together, 12.40% had a female householder with no husband present, and 38.10% were non-families. Some 32.70% of all households were made up of individuals and 13.20% had someone living alone who was 65 years of age or older. The average household size was 2.31 and the average family size was 2.96.

The age distribution of the population shows 21.90% under the age of 18, 8.50% from 18 to 24, 28.30% from 25 to 44, 23.40% from 45 to 64, and 17.80% who were 65 years of age or older. The median age was 40. For every 100 females, there were 90.00 males; for every 100 females age 18 and over, there were 86.20 males.


In the late 18th century farming played a critical role in the growth of the area. There was a surplus of grain due to transportation difficulties in linking with the eastern portion of the state. As a result, the farmers distilled the grain into whiskey, which significantly helped the farmers financially.

Tree Map of Employment by Occupations in Allegheny County, Pa (2015)
Employment by occupation in Allegheny County

The area quickly became a key manufacturing area in the young nation. Coupled with deposits of iron and coal, and the easy access to waterways for barge traffic, the city quickly became one of the most important steel producing areas in the world. Based on 2007 data from the US Army Corps of Engineers, Pittsburgh is the second (after Laredo, Texas) busiest inland port in the nation.

US steel production declined late in the 20th century, and Allegheny County's economy began a shift to other industries. It is presently known for its hospitals, universities, and industrial centers. Despite the decline of heavy industry, Pittsburgh is home to a number of major companies and is ranked in the top ten among US cities hosting headquarters of Fortune 500 corporations, including U.S. Steel Corporation, PNC Financial Services Group, PPG Industries, and H. J. Heinz Company.

The county leads the state in number of defense contractors supplying the U.S. military.[20]



Colleges and universities

Community, junior and technical colleges

Public school districts

Map of Allegheny County Pennsylvania School Districts
Map of Allegheny County, Pennsylvania Public School Districts

Approved private schools

The Commonwealth of Pennsylvania has 36 Approved Private Schools including the Charter Schools for the Blind and Deaf. The private schools are licensed by the State Board of Private Academic Schools. They provide a free appropriate special education for students with severe disabilities. The cost of tuition for these schools is paid 60% by the state and 40% by the local school district where the student is a resident. Pennsylvania currently has four PA chartered and 30 non-charter APSs for which the Department approves funding. These schools provide a program of special education for over 4,000 day and residential students. Parents are not charged for the services at the school.[21] In 2009, the Pennsylvania Department of Education budgeted $98 million for tuition of children in approved private schools and $36.8 million for students attending the charter schools for the deaf and blind.[22] The majority of these schools are located in the southeastern region and southwestern region of Pennsylvania.

  • ACLD Tillotson School, Pittsburgh – Tuition rate $38,804
  • The Day School at The Children's Institute, Pittsburgh – Tuition rate $55,217
  • DePaul School for Hearing and Speech, Pittsburgh – Tuition rate $36,892
  • Easter Seal Society of Western Pennsylvania – Tuition rate $60,891.97
  • The Education Center at the Watson Institute, Sewickley – Tuition rate $42,242
  • Pace School, Pittsburgh – Tuition rate – $37,635
  • Pressley Ridge Day School, Pittsburgh – Tuition rate – $51,177
  • Pressley Ridge School for the Deaf, Pittsburgh – Tuition rate – $66,022, residential $128,376
  • The Watson Institute Friendship Academy, Pittsburgh – Tuition rate – $38,211
  • Wesley Spectrum Highland Services, Pittsburgh – Tuition rate – $39,031
  • Western Pennsylvania School for Blind Children, Pittsburgh – Tuition rate – $82,500, residential $120,100
  • Western Pennsylvania School for the Deaf, Pittsburgh – Tuition rate – $61,051, residential – $99,919

Private high schools

21st Century Community Learning Centers

These are state-designated before- and after-school program providers. They receive state funding through grants. CCLCs provide academic, artistic and cultural enhancement activities to students and their families when school is not in session.[23]

  • Boys & Girls Clubs of Western PA – 2010 Grant – $261,748
  • Cornell School District – 2010 Grant – $526,800
  • Human Services Center Corporation – 2010 Grant- $550,000
  • McKeesport Area School District – 2010 Grant – $468,000
  • Penn Hills School District – 2010 Grant – $360,000
  • The Hill House/One Small Step −2010 Grant – $675,000
  • Wireless Neighborhoods – 2010 Grant – $612,000


Allegheny County's public transportation provider is the Port Authority of Allegheny County. The Allegheny County Department of Public Works oversees infrastructure, maintenance and engineering services in the county.

The Three Rivers Heritage Trail provides uninterrupted bicycle and pedestrian connections along the three rivers in the city, and the Great Allegheny Passage trail runs from downtown Pittsburgh to Washington, D.C.

Major roadways

For information about major state roads, see list of State Routes in Allegheny County, Pennsylvania and Allegheny County Belt System.

Parks and recreation

There are two Pennsylvania state parks in Allegheny County. Point State Park is at the confluence of the Allegheny and Monongahela rivers in Downtown Pittsburgh, and Allegheny Islands State Park is in the Allegheny River in Harmar Township and is undeveloped as of August 2010.

Pennsylvania State Game Lands Number 203 is also located in Allegheny County providing hunting and other activities.



Map of Allegheny County Pennsylvania With Municipal and Township Labels
Map of Allegheny County, Pennsylvania, with municipal labels showing cities and boroughs (red), townships (white), and census-designated places (blue)

Under Pennsylvania law, there are four types of incorporated municipalities: cities, boroughs, townships, and (in one case) a town. The following municipalities are in Allegheny County:




Census-designated places

Census-designated places are geographical areas designated by the US Census Bureau for the purposes of compiling demographic data. They are not actual jurisdictions under Pennsylvania law. Other unincorporated communities, such as villages, may be listed here as well.

Unincorporated communities

Former places

Many political subdivisions of Allegheny County have come and gone through subdivision or annexation through the years. These include:

  • Allegheny City – the area that is now the North Shore (or North Side) of the City of Pittsburgh, north of the Allegheny River.
  • Allentown Borough – now the neighborhood of Allentown in Pittsburgh.
  • Birmingham Borough – what is now Pittsburgh's South Side.
  • Brushton Borough
  • Carrick Borough – now the neighborhood of Carrick. Formed out of Baldwin Township in 1904, this borough existed until it was annexed by Pittsburgh in 1927. It was named for Carrick-on-Suir, Ireland. Some of the area's manhole covers still bear the Carrick Borough name.
  • Chartier Township – existed at the time of the 1860 U.S. Federal Census.[27]
  • Collins Township – in what is now the northeast part of the City of Pittsburgh, east of Lawrenceville and north of Penn Avenue.
  • Knoxville Borough
  • Lawrenceville Borough
  • McClure Township – McClure was formed in 1858 from the section of Ross Township adjacent to Allegheny City. In 1867 McClure, along with sections of Reserve Township, was incorporated into Allegheny City. The McClure section of this annexation became Wards 9 (Woods Run Area) and 11 (present day Brighton Heights) in the City of Pittsburgh.
  • Mifflin Township- comprised the modern day communities of Whitaker, West Mifflin, West Homestead, West Elizabeth, Pleasant Hills, Munhall, Lincoln Place, Jefferson Hills, Homestead, Hays, Duquesne, Dravosburg, Clairton and part of Baldwin.[28]
  • Patton Township – was in east central part of the county, north of North Versailles Township, east of Wilkins and Penn Townships, and south of Plum Township. In U.S. census for 1860–1880. In 1951 it became incorporated as the borough of Monroeville.
  • Northern Liberties Borough – in what is now the Strip District of Pittsburgh. The borough was annexed to Pittsburgh in 1837 as the first addition to the city's original territory.
  • Peebles Township – included most of what is now the eastern part of the city of Pittsburgh from the Monongahela River in the south (today's Hazelwood) to the Allegheny River in the north. It was subdivided into Collins and Liberty townships, all of which were incorporated into Pittsburgh in 1868.
  • Pitt Township
  • St. Clair Township – stretched from the Monongahela River south to the Washington County line. It divided into Lower St. Clair, which eventually became part of the City of Pittsburgh, Dormont, Mount Lebanon, and Upper St. Clair.
  • Snowden – now known as South Park Township.
  • Sterrett Township
  • Temperanceville – what is now Pittsburgh's West End.
  • Union Borough – the area surrounding Temperanceville.
  • West Liberty Borough – now the neighborhoods of Brookline and Beechview in Pittsburgh.

Population ranking

The population ranking of the following table is based on the 2010 census of Allegheny County.[29]

county seat

Rank City/Town/etc. Population (2010 Census) Municipal type Incorporated
1 Pittsburgh 305,704 City 1794 (borough) 1816 (city)
2 Penn Hills 42,329 Municipality 1851 (Penn Twp.) 1958 (Penn Hills Twp.) 1976 (municipality)
3 Mt. Lebanon 33,137 Municipality 1912 (township) 1975 (municipality)
4 Bethel Park 32,313 Municipality 1949 (borough) 1978 (municipality)
5 Ross 31,105 Municipality 1809
6 Monroeville 28,386 Municipality 1951
7 Plum 27,126 Borough 1788 (township) 1956 (borough)
8 Allison Park 21,552 CDP
9 West Mifflin 20,313 Borough 1942
10 Baldwin 19,767 Borough 1950
11 McKeesport 19,731 City 1842 (borough) 1891 (city)
12 Wilkinsburg 15,930 Borough 1871 (Sterrett Twp.) 1887 (borough)
13 Whitehall 13,944 Borough 1948
14 Franklin Park 13,470 Borough
15 Munhall 11,406 Borough
16 Carnot-Moon 11,372 CDP
17 Jefferson Hills 10,619 Borough
18 Brentwood 9,643 Borough 1916
19 Swissvale 8,983 Borough
20 Glenshaw 8,981 CDP
21 Dormont 8,593 Borough 1909
22 Bellevue 8,370 Borough 1867
23 Castle Shannon 8,316 Borough 1919
24 Pleasant Hills 8,268 Borough
25 Carnegie 7,972 Borough 1894
26 White Oak 7,862 Borough
27 Clairton 6,796 City 1903 (borough) 1922 (city)
28 West View 6,771 Borough
29 Forest Hills 6,518 Borough 1919
30 Oakmont 6,303 Borough 1889
31 McKees Rocks 6,104 Borough 1892
32 Crafton 5,951 Borough
33 Coraopolis 5,677 Borough 1886
34 Duquesne 5,565 City 1891 (borough) 1918 (city)
35 Fox Chapel 5,388 Borough
36 Turtle Creek 5,349 Borough
37 Bridgeville 5,148 Borough 1901
38 North Braddock 4,857 Borough
39 Avalon 4,705 Borough 1874
40 Tarentum 4,530 Borough 1842
41 Glassport 4,483 Borough
42 Green Tree 4,432 Borough 1885
43 Sewickley 3,827 Borough
44 Port Vue 3,798 Borough
45 Millvale 3,744 Borough
46 Pitcairn 3,689 Borough
47 Etna 3,451 Borough
48 Sharpsburg 3,446 Borough
49 Springdale 3,405 Borough
50 Mount Oliver 3,403 Borough
51 Ingram 3,330 Borough
52 Brackenridge 3,260 Borough 1901
53 Trafford (mostly in Westmoreland County) 3,174 Borough 1904
54 Homestead 3,165 Borough
55 Edgewood 3,118 Borough 1888
56 Churchill 3,011 Borough
57 Aspinwall 2,801 Borough 1892
58 Gibsonia 2,733 CDP
59 Liberty 2,551 Borough
60 Imperial 2,541 CDP
61 Verona 2,474 Borough 1871
62 Emsworth 2,449 Borough
63 Greenock 2,195 CDP
64 Wilmerding 2,190 Borough
65 Braddock 2,159 Borough 1867
66 McDonald (mostly in Washington County) 2,149 Borough 1889
67 East McKeesport 2,126 Borough
68 Rankin 2,122 Borough
69 West Homestead 1,929 Borough
70 Braddock Hills 1,880 Borough 1946
71 East Pittsburgh 1,822 Borough
72 Dravosburg 1,792 Borough
73 Ben Avon 1,781 Borough 1891
74 Bakerstown 1,761 CDP
75 Cheswick 1,746 Borough
76 Sturgeon 1,710 CDP
77 Edgeworth 1,680 Borough
78 Versailles 1,515 Borough
79 Elizabeth 1,493 Borough
80 Oakdale 1,459 Borough
81 Russellton 1,440 CDP
82 Blawnox 1,432 Borough 1925
83 Bell Acres 1,388 Borough 1960
84 Whitaker 1,271 Borough
85 Heidelberg 1,244 Borough
86 Leetsdale 1,218 Borough
87 Bradford Woods 1,171 Borough 1915
88 Rennerdale 1,150 CDP
89 Lincoln 1,072 Borough
90 Curtisville 1,064 CDP
91 Enlow 1,013 CDP
92 Harwick 899 CDP
93 Sewickley Heights 810 Borough
94 Chalfant 800 Borough
95 Bairdford 698 CDP
96 Pennsbury Village 661 Borough
97 Sewickley Hills 639 Borough
98 Wall 580 Borough
99 Noblestown 575 CDP
100 Glen Osborne 547 Borough
101 Boston 545 CDP
102 West Elizabeth 518 Borough
103 Thornburg 455 Borough
104 Clinton 434 CDP
105 Rosslyn Farms 427 Borough
106 Ben Avon Heights 371 Borough 1913
107 Glenfield 205 Borough
108 Haysville 70 Borough

See also


  1. ^ "PHMC Historical Markers Search" (Searchable database). Pennsylvania Historical and Museum Commission. Commonwealth of Pennsylvania. Retrieved January 25, 2014.
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. ^ Stewart, George R. (1967) [1945]. Names on the Land: A Historical Account of Place-Naming in the United States (Sentry edition (3rd) ed.). Houghton Mifflin. pp. 8, 193. ISBN 1-59017-273-6.
  4. ^ Fiske, John (1902). New France and New England, pp. 290–92. Houghton Mifflin Company.
  5. ^ Kussart, Mrs. S. (April 24, 1930). "Navigation on the Monongahela River". The Daily Republican (Monongahela, Pennsylvania). p. 3. Retrieved August 10, 2018.
  6. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved March 4, 2015.
  7. ^ "Pennsylvania Municipalities Information". Retrieved August 16, 2012.
  8. ^ Cohan, Jeffrey (June 20, 2004). "Can 39 towns be turned into one?". Pittsburgh Post-Gazette. Retrieved August 16, 2012.
  9. ^ "Lobbyist Profile – Ewanco, Robert J." Pennsylvania Lobbyist Database. Pennsylvania General Assembly. Archived from the original (database) on December 1, 2009.
  10. ^ a b Bumsted, Brad; Mike Wereschagin (November 29, 2009). "Lobbyist expenses wasteful, critics say". Pittsburgh Tribune Review. Archived from the original on November 30, 2009.
  11. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections".
  12. ^
  13. ^ "Population and Housing Unit Estimates". Retrieved June 9, 2017.
  14. ^ "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved March 4, 2015.
  15. ^ "Historical Census Browser". University of Virginia Library. Retrieved March 4, 2015.
  16. ^ Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved March 4, 2015.
  17. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Retrieved March 4, 2015.
  18. ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on July 6, 2011. Retrieved November 16, 2013.
  19. ^ "American FactFinder". United States Census Bureau. Archived from the original on September 11, 2013. Retrieved January 31, 2008.
  20. ^ "Automatic defense cuts would affect some contractors in Pittsburgh region". Pittsburgh Post-Gazette. July 3, 2012. Retrieved August 16, 2012.
  21. ^ Approved Private Schools and Chartered Schools for the Deaf and the Blind, Pennsylvania Department of Education website, accessed April 2010.
  22. ^ Tommasini, John, Assistant Secretary of Education, Testimony before the Pennsylvania Senate Education Committee Hearing on SB982 of 2010. given April 14, 2010.
  23. ^ Pennsylvania Awards $29.9 Million to Support 21st Century Community Learning Centers, Pennsylvania Department of Education Press Release, April 7, 2010
  24. ^ a b c d e f Schmitz, Jon (July 23, 2012). "Kirwan Heights loses Interstate 79 designation". Pittsburgh Post-Gazette. Retrieved May 15, 2016.
  25. ^ "Profile: Cuddy, Pennsylvania". Mapquest. Retrieved May 15, 2016.
  26. ^ "Profile: Sheraden, Pennsylvania". U.S. Geological Survey. Retrieved May 15, 2016.
  27. ^ 1860 United States Federal Census - Chartier Township, accessed April 2018 via paid subscription site.
  28. ^ "Mifflin Township Historical Society Attraction Details".
  29. ^ Center for New Media and Promotions(C2PO). "2010 Census". United States Census Bureau. Archived from the original on December 21, 2013.

External links

Coordinates: 40°28′N 79°59′W / 40.47°N 79.98°W

2013 Pittsburgh Metro Area SMALL
Map of the Pittsburgh Tri-State with green counties in the metropolitan area and yellow counties in the combined area.
Allegheny County Airport Authority

Allegheny County Airport Authority is a Municipal Authority in Allegheny County, Pennsylvania that oversees and maintains the Allegheny County airport system. These include management of Pittsburgh International Airport as well as Allegheny County Airport. The Authority is also a key lobbying and public interest agency often representing the local aviation industry and related industry interests in Harrisburg (the state capital) and on the federal level.

The authority holds over $500 million in debt from construction of the Pittsburgh International Airport.

Baldwin, Pennsylvania

Baldwin is a borough in Allegheny County, Pennsylvania, United States, (not to be confused with adjacent Baldwin Township), and is part of the Pittsburgh Metro Area. The population was 19,767 at the 2010 census.

Bethel Park, Pennsylvania

Bethel Park, referring to itself as the Municipality of Bethel Park, is a borough with home rule status in Allegheny County, Pennsylvania, and is part of the Pittsburgh Metro Area, approximately 7 miles (13 km) southwest of Pittsburgh. The population was 32,313 at the 2010 census.

Blanchard, Allegheny County, Pennsylvania

Blanchard is an unincorporated community and coal town in West Deer Township, Allegheny County, Pennsylvania. It lies at an elevation of 1129 feet (344 m).

Evergreen, Allegheny County, Pennsylvania

Evergreen is an unincorporated community in Ross Township, Allegheny County, Pennsylvania, United States.

Hampton Township, Allegheny County, Pennsylvania

Hampton Township is a township in Allegheny County, Pennsylvania, United States. The population was 18,363 at the 2010 census.

Leet Township, Allegheny County, Pennsylvania

Leet Township is a township in Allegheny County, Pennsylvania, United States. The population was 1,634 at the 2010 census.

McCandless, Pennsylvania

McCandless is a Home Rule Municipality in Allegheny County, Pennsylvania, United States. The population was 28,457 at the 2010 census. It obtained a home rule charter on January 1, 1975, and changed its name from "McCandless Township" to "Town of McCandless". Though McCandless no longer operates under the First Class Township Code, it is classified as a first-class township for certain purposes.The inclusion of the word "Town" in its name sometimes causes confusion, since with one exception, a "town" is not a municipal unit in Pennsylvania. Bloomsburg, in Columbia County, was incorporated as a town in 1870, and is legally recognized as "the only incorporated town" in Pennsylvania.

McCandless is part of the North Allegheny School District and participates in the multi-municipality Northland Public Library.

It has been ranked highly among Money Magazine's "Best Places to Live."

Mount Nebo, Allegheny County, Pennsylvania

Mount Nebo is an unincorporated community in Allegheny County, in the U.S. state of Pennsylvania.

Mt. Lebanon, Pennsylvania

Mt. Lebanon is a township with home rule status in Allegheny County, Pennsylvania, United States. The population was 33,137 at the 2010 census. It is a suburb of Pittsburgh.

Established in 1912 as Mount Lebanon, the township was a farming community until the arrival of streetcar lines, first opening in 1901 Now with the ability to commute to and from Downtown Pittsburgh daily, Mount Lebanon became a streetcar suburb, with the first real estate subdivision being laid out in November 1901. Further, the opening of the Liberty Tunnel in 1924 allowed easy automobile access to Pittsburgh. In 1975, the renamed Mt. Lebanon adopted one of the first home rule charters in Pennsylvania.

National Register of Historic Places listings in Allegheny County, Pennsylvania

This is a list of the National Register of Historic Places listings in Allegheny County, Pennsylvania.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Allegheny County, Pennsylvania, excluding the city of Pittsburgh. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map.

There are 236 properties and districts listed on the National Register in the county, including 10 National Historic Landmarks. Pittsburgh is the location of 168 of these properties and districts, including 5 National Historic Landmarks; they are listed separately. The 72 properties and districts elsewhere in the county, including 5 National Historic Landmarks, are listed here. Four properties are split between Pittsburgh and other parts of the county.

This National Park Service list is complete through NPS recent listings posted March 22, 2019.

Neville Township, Pennsylvania

Neville Township is a township in Allegheny County, Pennsylvania, United States. Its land area consists entirely of Neville Island, which is an island on the Ohio River. The population was 1,084 at the 2010 census.

O'Hara Township, Allegheny County, Pennsylvania

O'Hara Township is a township with home rule status in Allegheny County, Pennsylvania in the United States six miles northeast of Downtown Pittsburgh. The community was long organized as a township, and retains "Township" in its official name, but adopted a home rule charter in 1973 (taking effect on January 5, 1976) and is no longer subject to the Pennsylvania Township Code. The population was 8,407 at the 2010 census.It is named for James O'Hara (1752?–1819), an early American industrialist in western Pennsylvania, and a revolutionary war general.

Penn Hills Township, Allegheny County, Pennsylvania

Penn Hills is a township with home rule status in Allegheny County, Pennsylvania, United States. The population as of the 2010 census was 42,329. Penn Hills is the second-largest municipality in Allegheny County, after the city of Pittsburgh.

Pine Township, Allegheny County, Pennsylvania

Pine Township is a township in Allegheny County, Pennsylvania, United States. The population was 11,497 at the 2010 census.Pine Township was named for the abundance of pine trees.

Ross Township, Allegheny County, Pennsylvania

Ross Township is a township in Allegheny County, Pennsylvania, United States. Ross Township is a sprawling suburban community adjacent to the northern border of the city of Pittsburgh. While most areas of the Township are residential, a strong retail corridor is located along McKnight Road, along with business districts on US Route 19 and Babcock Boulevard. The population of the township was 31,105 at the 2010 census.

Ross Township, along with the borough of West View, Pennsylvania, comprises the North Hills School District, and participates in the multi-municipality Northland Public Library. Ross Township is a member of the Girty's Run Joint Sewer Authority.

Scott Township, Allegheny County, Pennsylvania

Scott Township is a township in Allegheny County, Pennsylvania, United States. The population was 17,024 at the 2010 census.

Shaler Township, Allegheny County, Pennsylvania

Shaler Township is a township in Allegheny County in the U.S. state of Pennsylvania. It consists of much of the community of Glenshaw and several neighboring communities. The population was 28,757 at the 2010 census.

Upper St. Clair Township, Allegheny County, Pennsylvania

Upper St. Clair Township is a township with home rule status in Allegheny County, Pennsylvania, United States.

An affluent suburb located about 10 miles (16 km) south of Pittsburgh, Upper St. Clair possesses a nationally recognized school district. The population was 19,229 at the 2010 census.

Wildwood, Pennsylvania

Wildwood is an unincorporated village in Hampton Township, Allegheny County, Pennsylvania, United States.

The regional parks of Allegheny County in the U.S. state of Pennsylvania
Places adjacent to Allegheny County, Pennsylvania
Municipalities and communities of Allegheny County, Pennsylvania, United States
Metro areas
Largest cities

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