York County is a county in the Commonwealth of Pennsylvania, United States. As of the 2020 census, the population was 456,438. Its county seat is York. The county was created on August 19, 1749, from part of Lancaster County and named either after the Duke of York, an early patron of the Penn family, or for the city and county of York in England. The county is part of the South Central region of the state. York County comprises the York-Hanover, Pennsylvania Metropolitan Statistical Area, which is also included in the Harrisburg-York-Lebanon, Pennsylvania combined statistical area. It is in the Susquehanna Valley, a large fertile agricultural region in South Central Pennsylvania. Based on the Articles of Confederation having been adopted in York by the Second Continental Congress on November 15, 1777, the local government and business community began referring to York in the 1960s as the first capital of the United States of America.

Founded: August 19, 1749
Named for: Duke of York
Seat: York
Largest city: York
Total: 911 sq mi (2,359.48 km²)
Land: 904 sq mi (2,341.35 km²)
Water: 6.5 sq mi (16.83 km²), 0.7%
Density: 481.1/sq mi (/km²)
Time zone: Eastern: UTC-5-4
Twitter profile: yorkcounty_pa
Official Website: http://www.york-county.org
Wikidata description: county in Pennsylvania, United States
Wikidata id: Q490914
Wikidata label: York County
Wikidata aliases: Array
Source
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