Washington County, Oklahoma
Washington County | |
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![]() Location within the U.S. state of Oklahoma | |
![]() Oklahoma's location within the U.S. | |
Coordinates: 36°44′50″N 95°58′50″W / 36.747206°N 95.980597°W | |
Country | ![]() |
State | ![]() |
Founded | 1907 |
Named for | George Washington |
Seat | Bartlesville |
Largest city | Bartlesville |
Area | |
• Total | 424 sq mi (1,100 km2) |
• Land | 415 sq mi (1,070 km2) |
• Water | 8.8 sq mi (23 km2) 2.1%% |
Population | |
• Estimate (2013) | 51,577 |
• Density | 123/sq mi (47/km2) |
Congressional district | 1st |
Website | www |
Washington County is a county in the U.S. state of Oklahoma. It is, in area, the third smallest county in Oklahoma. As of 2000, 48,996 people lived there. Its county seat is Bartlesville.