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List of counties in Pennsylvania

The following is a list of the 67 counties of the U.S. state of Pennsylvania. The city of Philadelphia is coterminous with Philadelphia County, the municipalities having been consolidated in 1854, and all remaining county government functions having been merged into the city after a 1951 referendum.[1][2] Eight of the ten most populous counties are in the southeastern portion of the state, including four out of the top five, and eight of the top ten most populous counties are in either the Greater Philadelphia or Greater Pittsburgh Metropolitan Statistical Areas.

Counties of Pennsylvania

67

4,380 (Cameron) – 1,550,542 (Philadelphia)

132 square miles (340 km2) (Montour) – 1,244 square miles (3,220 km2) (Lycoming)

List of Pennsylvania counties by per capita income

List of county seats in Pennsylvania (by population)

List of Pennsylvania Municipalities and Counties with Home Rule Charters, Optional Charters, or Optional Plans

List of municipalities in Pennsylvania

List of cities in Pennsylvania

List of towns and boroughs in Pennsylvania

List of townships in Pennsylvania