Allegheny County
![]() The Allegheny County Courthouse in Pittsburgh, listed on the NRHP since 1973 |
|
administration | |
---|---|
US state : | Pennsylvania |
Administrative headquarters : | Pittsburgh |
Address of the administrative headquarters: |
Allegheny County Courthouse 436 Grant St Pittsburgh, PA 15219-2400 |
Foundation : | 1788 |
Made up from: |
Washington County Westmoreland County |
Area code : | +1 412 |
Demographics | |
Residents : | 1,223,348 (2010) |
Population density : | 646.9 inhabitants / km 2 |
geography | |
Total area : | 1929 km² |
Water surface : | 38 km² |
map | |
Website : www.county.allegheny.pa.us |
The Allegheny County is a county in the US state of Pennsylvania .
At the 2010 census , the county had 1,223,348 residents and a population density of 646.9 people per square kilometer. The county seat is Pittsburgh .
Allegheny County forms the core of the metropolitan area around the city of Pittsburgh .
geography
The county is located in southwest Pennsylvania in the metropolitan area around the city of Pittsburgh at the confluence of the Monongahela River and Allegheny River to the Ohio River . It has an area of 1929 km², of which 38 km² are water. The following counties border Allegheny County:
Beaver County | Butler County | Armstrong County |
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Westmoreland County | |
Washington County |
history
The county was formed on September 24, 1788 from former parts of Washington and Westmoreland Counties. It was named after the Allegheny River .
Eleven locations in the county have National Historic Landmark status . 231 structures and sites in the county are listed on the National Register of Historic Places (NRHP) (as of July 18, 2018).
Demographic data
growth of population | |||
---|---|---|---|
Census | Residents | ± in% | |
1790 | 10,203 | - | |
1800 | 15,087 | 47.9% | |
1810 | 25,317 | 67.8% | |
1820 | 34,921 | 37.9% | |
1830 | 50,552 | 44.8% | |
1840 | 81,235 | 60.7% | |
1850 | 138,290 | 70.2% | |
1860 | 178,831 | 29.3% | |
1870 | 262.204 | 46.6% | |
1880 | 355,869 | 35.7% | |
1890 | 551,959 | 55.1% | |
1900 | 775.058 | 40.4% | |
1910 | 1,018,463 | 31.4% | |
1920 | 1,185,808 | 16.4% | |
1930 | 1,374,410 | 15.9% | |
1940 | 1,411,539 | 2.7% | |
1950 | 1,515,237 | 7.3% | |
1960 | 1,628,587 | 7.5% | |
1970 | 1,605,016 | -1.4% | |
1980 | 1,450,085 | -9.7% | |
1990 | 1,336,449 | -7.8% | |
2000 | 1,281,666 | -4.1% | |
2010 | 1,223,348 | -4.6% | |
before 1900
1900–1990 2000 2010 |
As of the 2010 census , Allegheny County had 1,223,348 people in 524,584 households. The population density was 646.9 inhabitants per square kilometer.
The racial the population was composed of 81.5 percent white, 13.2 percent African American, 0.1 percent Native American, 2.8 percent Asian and other ethnic groups; 1.8 percent were descended from two or more races. Hispanic or Latino of any race was 1.6 percent of the population.
Statistically speaking, 2.26 people lived in each of the 524,584 households.
19.8 percent of the population were under 18 years old, 63.4 percent were between 18 and 64 and 16.8 percent were 65 years or older. 52.1 percent of the population was female.
The median income for a household was 46,212 USD . The per capita income was $ 28,825. 13.0 percent of the population lived below the poverty line.
cities and communes
- Aspinwall
- Avalon
- Baldwin
- Bell Acres
- Bellevue
- Ben Avon
- Ben Avon Heights
- Bethel Park
- Blawnox
- Brackenridge
- Braddock
- Braddock Hills
- Bradford Woods
- Brentwood
- Bridgeville
- Carnegie
- Castle Shannon
- Chalfant
- Cheswick
- Churchill
- Coraopolis
- Crafton
- Dormont
- Dravosburg
- East McKeesport
- East Pittsburgh
- Edgewood
- Edgeworth
- Elizabeth
- Emsworth
- Etna
- Forest Hills
- Fox Chapel
- Franklin Park
- Glass sports
- Glen Osborne
- Glenfield
- Green tree
- Haysville
- Heidelberg
- Homestead
- Ingram
- Jefferson Hills
- Leetsdale
- Liberty
- Lincoln
- McDonald 1
- McKees Rocks
- Millvale
- Monroeville
- Mount Oliver
- Munhall
- North Braddock
- Oakdale
- Oakmont
- Pennsbury Village
- Pitcairn
- Pleasant Hills
- Plum
- Port Vue
- Rankin
- Rosslyn Farms
- Sewickley
- Sewickley Heights
- Sewickley Hills
- Sharpsburg
- Springdale
- Swissvale
- Tarentum
- Thornburg
- Trafford 2
- Turtle Creek
- Verona
- Versailles
- Wall
- West Elizabeth
- West Homestead
- West Mifflin
- West View
- Whitaker
- White Oak
- Whitehall
- Wilkinsburg
- Wilmerding
Census-designated places (CDP)
Townships
- Aleppo Township
- Baldwin Township
- Collier Township
- Crescent Township
- East Deer Township
- Elizabeth Township
- Fawn Township
- Findlay Township
- Forward Township
- Frazer Township
- Hampton Township
- Harmar Township
- Indiana Township
- Kennedy Township
- Kilbuck Township
- Leet Township
- Marshall Township
- Moon Township
- Mount Lebanon Township
- Neville Township
- North Fayette Township
- North Versailles Township
- O'Hara Township
- Ohio Township
- Penn Hills Township
- Pine Township
- Reserve Township
- Richland Township
- Robinson Township
- Ross Township
- South Fayette Township
- South Park Township
- South Versailles Township
- Scott Township
- Shaler Township
- Springdale Township
- Stowe Township
- Upper St. Clair Township
- West Deer Township
- Wilkins Township
In culture
The plot of the award-winning film Who Goes Through Hell is set in the mining community of the provincial town of Clairton, Allegheny County.
Personalities
- Richard Edwin Hoover , ophthalmologist , developed the Hoover Cane and standardized orientation and mobility training - the everyday handling of the stick by people who are blind and want to be mobile with it independently.
Web links
- Official website
- US Census Bureau, State & County QuickFacts - Allegheny County
- Yahoo Image Search - Allegheny County
- www.city-data.com - Allegheny County
Individual evidence
- ↑ Extract from the National Register of Historic Places - No. 73001586. Retrieved October 28, 2011
- ^ Allegheny County in the United States Geological Survey's Geographic Names Information System.Retrieved February 22, 2011
- ^ National Association of Counties.Retrieved October 28, 2011
- ↑ Charles Curry Aiken, Joseph Nathan Kane: The American Counties: Origins of County Names, Dates of Creation, Area, and Population Data, 1950-2010 . 6th edition. Scarecrow Press, Lanham 2013, ISBN 978-0-8108-8762-6 , p. 6 .
- ↑ Listing of National Historic Landmarks by State: Pennsylvania . National Park Service , accessed July 20, 2018.
- ↑ Search mask database in the National Register Information System. National Park Service , accessed July 18, 2018.
- ^ University of Virginia Library - Historical Census Browser. Retrieved October 28, 2011
- ^ Extract from Census.gov.Retrieved February 28, 2011
- ↑ Excerpt from factfinder.census.gov.Retrieved February 28, 2011
- ↑ United States Census 2010.Retrieved October 28, 2011
- ^ US Census Bureau, State & County QuickFacts - Allegheny County. Retrieved October 28, 2011
Coordinates: 40 ° 27 ′ N , 80 ° 1 ′ W