How many people live in Washington County, TX?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 37,800 people living in Washington County, TX. That makes Washington County the 86th-most populous county in Texas. It is home to 0.12% of people living in the state.
37.8K
population of Washington County, TX (2024)
0.12%
County share of the Texas population (2024)
About 37,800 people lived in Washington County, TX in 2024.
Population estimates, 2000–2024
What are Washington County, TX’s age demographics?
About 9,100 Washington County, TX residents are aged 65 and older in 2024. That represents 24.1% of its population. For comparison, the age group represents 14% of Texas’s population and 18% in the US overall.
Another 7,800 Washington County residents, or 20.6% of the population, were children under 18. For comparison, the age group represents 24.6% of Texas’s population and 21.6% in the US overall.
A lower share of Washington County, TX's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Washington County, TX’s racial and ethnic demographics?
Non-Hispanic white residents make up 62.2% of the Washington County, TX population, higher than the national share of 57.5%. Washington County, TX also has a larger share of people identifying as non-Hispanic Black or African American (15.5%) than the US overall (12.6%).
In contrast, Washington County’s non-Hispanic Asian population accounts for 1.6%, below the 6.5% nationwide, and the non-Hispanic two or more races population makes up 1.3% of the county, compared with 2.5% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Washington County, TX has a higher share of a non-Hispanic white population than Texas as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Washington County, TX is Brenham with about 19,700 residents in 2024.
Cities and towns in Washington County, TX ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Brenham | 19,728 |
| 2. | Burton | 286 |
| 3. | Balance of Washington County | 17,796 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
