{"id":7208,"date":"2023-08-28T07:31:59","date_gmt":"2023-08-28T07:31:59","guid":{"rendered":"https:\/\/townsvillages.com\/us\/?p=7208"},"modified":"2026-07-31T19:36:57","modified_gmt":"2026-07-31T19:36:57","slug":"allegheny-county","status":"publish","type":"post","link":"https:\/\/townsvillages.com\/us\/allegheny-county\/","title":{"rendered":"Allegheny County, Pennsylvania"},"content":{"rendered":"

Allegheny County is a county in Pennsylvania, United States, at the point where the Allegheny and Monongahela rivers meet to form the Ohio River. It had a population of 1,250,578 at the 2020 census, an estimated 1,225,035 by 2025, and covers 730 square miles (1,890 km2) centred near 40\u00b026\u2032N 79\u00b059\u2032W.<\/p>\n

Pittsburgh is the county seat and its largest city; its downtown postal code is 15222. The county holds 4 cities, 96 boroughs and 29 townships across 130 municipalities — more than any other county in Pennsylvania — and it runs on Eastern Time. Its FIPS code is 42003.<\/p>\n

Towns & Villages in Allegheny County<\/h2>\n

Allegheny County has 130 self-governing municipalities: one second-class city (Pittsburgh), three third-class cities (McKeesport, Duquesne, Clairton), 96 boroughs and 29 townships. The table below lists Pittsburgh and the 21 next-largest by population; a Townships section below covers the county’s largest townships separately. “Municipality” marks a former borough or township that has since adopted a home rule charter.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Place<\/th>\nType<\/th>\nPop. (2020)<\/th>\nZIP<\/th>\n<\/tr>\n<\/thead>\n
Pittsburgh<\/td>\nCity · seat<\/td>\n302,971<\/td>\n15222<\/td>\n<\/tr>\n
Penn Hills<\/td>\nTownship<\/td>\n41,059<\/td>\n15235<\/td>\n<\/tr>\n
Mt. Lebanon<\/td>\nMunicipality<\/td>\n34,075<\/td>\n15228<\/td>\n<\/tr>\n
Bethel Park<\/td>\nBorough<\/td>\n33,577<\/td>\n15102<\/td>\n<\/tr>\n
Ross Township<\/td>\nTownship<\/td>\n33,176<\/td>\n15237<\/td>\n<\/tr>\n
McCandless<\/td>\nTownship<\/td>\n29,709<\/td>\n15101<\/td>\n<\/tr>\n
Monroeville<\/td>\nMunicipality<\/td>\n28,640<\/td>\n15146<\/td>\n<\/tr>\n
Shaler Township<\/td>\nTownship<\/td>\n28,132<\/td>\n15116<\/td>\n<\/tr>\n
Moon Township<\/td>\nTownship<\/td>\n27,261<\/td>\n15108<\/td>\n<\/tr>\n
Plum<\/td>\nBorough<\/td>\n27,144<\/td>\n15239<\/td>\n<\/tr>\n
Baldwin<\/td>\nBorough<\/td>\n21,510<\/td>\n15234<\/td>\n<\/tr>\n
Upper St. Clair<\/td>\nTownship<\/td>\n21,160<\/td>\n15241<\/td>\n<\/tr>\n
West Mifflin<\/td>\nBorough<\/td>\n19,589<\/td>\n15122<\/td>\n<\/tr>\n
Hampton Township<\/td>\nTownship<\/td>\n18,470<\/td>\n15101<\/td>\n<\/tr>\n
McKeesport<\/td>\nCity<\/td>\n17,727<\/td>\n15132<\/td>\n<\/tr>\n
North Fayette Township<\/td>\nTownship<\/td>\n16,166<\/td>\n15126<\/td>\n<\/tr>\n
Robinson Township<\/td>\nTownship<\/td>\n15,503<\/td>\n15136<\/td>\n<\/tr>\n
Whitehall<\/td>\nBorough<\/td>\n15,064<\/td>\n15236<\/td>\n<\/tr>\n
Wilkinsburg<\/td>\nBorough<\/td>\n14,349<\/td>\n15221<\/td>\n<\/tr>\n
Elizabeth Township<\/td>\nTownship<\/td>\n12,972<\/td>\n15037<\/td>\n<\/tr>\n
Clairton<\/td>\nCity<\/td>\n6,181<\/td>\n15025<\/td>\n<\/tr>\n
Duquesne<\/td>\nCity<\/td>\n5,254<\/td>\n15110<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

McKeesport, Duquesne and Clairton are legally cities under Pennsylvania’s third-class city code, though most of the county’s better-known place names — Carnegie, Coraopolis, Sewickley, Homestead, Braddock, Swissvale, Munhall, Oakmont, Tarentum, Verona and Wilmerding among them — are boroughs too small to place in the top 22 by population, each under 8,000 residents.<\/p>\n

Townships<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Township<\/th>\nPop. (2020)<\/th>\nMain settlements<\/th>\n<\/tr>\n<\/thead>\n
Penn Hills<\/td>\n41,059<\/td>\nlargest township by population; no separately incorporated sub-places<\/td>\n<\/tr>\n
Ross Township<\/td>\n33,176<\/td>\nNorth Hills business district, Ross Park Mall area<\/td>\n<\/tr>\n
McCandless<\/td>\n29,709<\/td>\nIngomar, North Park border<\/td>\n<\/tr>\n
Shaler Township<\/td>\n28,132<\/td>\nGlenshaw<\/td>\n<\/tr>\n
Moon Township<\/td>\n27,261<\/td>\nPittsburgh International Airport, Robin Hill<\/td>\n<\/tr>\n
Upper St. Clair<\/td>\n21,160<\/td>\nunified suburban community, no distinct sub-villages<\/td>\n<\/tr>\n
Hampton Township<\/td>\n18,470<\/td>\nWildwood, Allison Park area<\/td>\n<\/tr>\n
North Fayette Township<\/td>\n16,166<\/td>\nClinton, retail corridor along Route 22<\/td>\n<\/tr>\n
Robinson Township<\/td>\n15,503<\/td>\nRobinson Town Centre retail corridor<\/td>\n<\/tr>\n
Elizabeth Township<\/td>\n12,972<\/td>\nBlaine Hill, Buena Vista<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

ZIP Codes<\/h2>\n