Brenham is a city located in Washington County Texas. It is also the county seat of Washington County. With a 2020 population of 18,453, it is the 148th largest city in Texas and the 1979th largest city in the United States . Brenham is currently growing at a rate of 1.62% annually and its population has increased by 17.42% since the most recent census, which recorded a population of 15,716 in 2010. Brenham reached it's highest population of 18,453 in 2021. Spanning over 13 miles, Brenham has a population density of 1,430 people per square mile.
The average household income in Brenham is $67,201 with a poverty rate of 16.07%. The median rental costs in recent years comes to $865 per month, and the median house value is $163,800. The median age in Brenham is 34.8 years, 30.7 years for males, and 38.8 years for females.