Washington County Flag

Washington County

State:
Texas
County Seat:
Brenham

Washington County's estimated 2026 population is 38,858 with a growth rate of 1.37% in the past year according to the most recent United States census data. Washington County is the 86th largest county in Texas. The 2010 population was 33,695 and has seen a growth of 15.32% since that time.

38,858
Total Population
64
Population Density (mi²)
86
Population Rank (State)
524 1.37%
Annual Population Growth

Washington County Population

Demographics

Economics and Income Statistics