York County | |
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Coordinates: 43°26′45″N 70°39′48″W / 43.445782°N 70.663216°W | |
Country | United States |
State | Maine |
Founded | 1639 |
Named for | York, England[1] |
Seat | Alfred |
Largest city | Biddeford |
Area | |
• Total | 1,270 sq mi (3,300 km2) |
• Land | 991 sq mi (2,570 km2) |
• Water | 279 sq mi (720 km2) 22% |
Population (2020) | |
• Total | 211,972 |
• Estimate (2021) | 214,591 |
• Density | 170/sq mi (64/km2) |
Time zone | UTC−5 (Eastern) |
• Summer (DST) | UTC−4 (EDT) |
Congressional district | 1st |
Website | yorkcountymaine |
York County is both the southernmost and the westernmost county in the U.S. state of Maine, along the state of New Hampshire's eastern border. It is divided from Strafford County, New Hampshire, by the Salmon Falls River and the connected tidal estuary, the Piscataqua River. York County was permanently established in 1639. Several of Maine's earliest colonial settlements are found in the county, which is the state's oldest and one of the oldest in the United States. As of the 2020 census, its population was 211,972,[2] making it Maine's second-most populous county. Its county seat is Alfred.[3] York County is part of the Portland–South Portland, Maine Metropolitan Statistical Area.