| Year | Population |
|---|---|
| 1980. | 48027 |
| 1990. | 48066 |
| 2000. | 48996 |
| 2010. | 50976 |
www.countycourthouse.org
Oklahoma
Washington County
County
40147
County seat is in Bartlesville
Founded in 1907
Area: 417 square miles
County board has 3 members
FIPS code: 40147
Zipcodes in Washington County: 74051, 74082, 74006, 74004, 74005, 74003, 74022, 74061, 74029
Buchanan Kevin
Deckard Gary
Dunlap Mike
Herndon Linda
Mathes Todd
No associations
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