Allegheny County, Pennsylvania

About

Allegheny County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 1,223,348 and a population density of 634 people per km². After 10 years in 2020 county had an estimated population of 1,211,358 inhabitants. Its county seat is Pittsburgh. The county was created 235 years ago in 1788.

Quick Facts about Allegheny County

AlleghenyCountyCourthouse image

Geography

Allegheny County is located at 40°28'8"N 79°58'52"W (40.4688300, -79.9811900). It has 4 neighbors: Armstrong County, Butler County, Washington County and Westmoreland County.

Allegheny County map

Click "full screen" icon to open full mode. View satellite images

The largest city of Allegheny County is Pittsburgh with a population of 299,226. Other cities include, Penn Hills population 40,517, Municipality of Bethel Park population 32,345, Bethel Park population 32,118 and Mount Lebanon population 31,418. See all Allegheny County cities & populated places.

Allegheny County Populated Places (more)

Cities, towns, neighborhoods & other populated places in Allegheny County.

People born in Allegheny County, including horticulturist Alex Shigo, historian, toponymist, and novelist George R. Stewart, actor/film director Lois Weber, .

List

• Bunny Yeager (American photographer and model) she was born in 13/03/1929
• Alferd Packer (Union Army soldiers) he was born in 21/01/1842
• Sidney Rigdon (American Mormon leader) he was born in 19/02/1793
• William D. Boyce (Businessman and founder of Scouting in America) he was born in 16/06/1858
• Elijah Hise (American politician (1802-1867)) he was born in 04/07/1802
• Joseph M. Schmondiuk (Archbishop of the Ukrainian Catholic Church) he was born in 06/08/1912
• Philip Childs Keenan (American astronomer) he was born in 31/03/1908
• Michael Dietz (American actor) he was born in 10/02/1971
• Charlie Batch (former NFL quarterback) he was born in 05/12/1974
• Mary Ruefle (Poet, essayist, professor) she was born in 16/04/1952
• M. Graham Netting (American zoologist) he was born in 01/01/1904
• Terrell Anderson he was born in 29/11/1989
• Baptiste Manzini (American football player and coach (1920-2008)) he was born in 27/08/1920
• Charles Mertz Arbuthnot (physician and pharmacist in Kansas) he was born in 15/12/1852
• Edward Early (American politician) he was born in 02/10/1935
• Justin Kurpeikis (American football player) he was born in 17/07/1977
• James Y. McKee (Acting president of Penn State University) he was born in 20/06/1836
• Jim Callahan (American baseball player) he was born in 12/01/1881