Washington County Flag

Washington County

State:
Texas
County Seat:
Brenham

Washington County's 2026 population is estimated at 38,893, reflecting a 1.58% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Washington County is the 84th largest county in Texas. The 2010 population was 33,695 and has grown 15.43% since 2010.

38,893
Total Population
64
Population Density (mi²)
84
Population Rank (State)
605 1.58%
Annual Population Growth

Washington County Population

Demographics

Economics and Income Statistics