Washington County Flag

Washington County

State:
Oklahoma
County Seat:
Bartlesville

Washington County's estimated 2025 population is 54,348 with a growth rate of 0.53% in the past year according to the most recent United States census data. Washington County is the 15th largest county in Oklahoma. The 2010 population was 51,071 and has seen a growth of 6.42% since that time.

54,348
Total Population
131
Population Density (mi²)
15
Population Rank (State)
288 0.53%
Annual Population Growth

Washington County Population

Demographics

Economics and Income Statistics

Sources

  1. City and Town Population Totals: 2020-2024
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)