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Union County, Pennsylvania

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Union County, Pennsylvania Map

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An detailed map of Union County. Click on a nearby County to view more information about that County.

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Map of Townships in Union County, Pennsylvania

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An interactive map of county subdivisions in Union County. In Pennsylvania, that can include Townships, Boroughs, Towns, and Municipalities. Find what township you are in now.

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Map of Counties in Pennsylvania

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An interactive map of Counties in Pennsylvania. Click on a County to view more information about that County.

About Union County, Pennsylvania

Union County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 42,681. Its county seat is Lewisburg. The county was created on March 22, 1813, from part of Northumberland County. Its name is an allusion to the federal Union. Mifflinburg was established by legislation as the first county seat until it was moved to New Berlin in 1815. Lewisburg became county seat in 1855 and has remained so since. Union County comprises the Lewisburg, PA Micropolitan Statistical Area, which is also included in the Bloomsburg-Berwick-Sunbury, PA Combined Statistical Area.

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This site has an interactive map of Pennsylvania Counties. Click on the map to find your Pennsylvania county, and view more details. You can also search for your address and use your GPS to find your Pennsylvania County.

Find what County you are in, and see official Pennsylvania County resources and information. Find any county in the United Stated, along with resources and links to official County websites. See a County map and local details. Looking for what county you are currently in? Find out on this map or use your device GPS to see what county you are in.