
Gainesville
- County:
- Cooke County
- County Seat:
- Yes
- Area (mi²):
- 19.303
- State:
- Texas
Gainesville is a city located in Cooke County, Texas. Gainesville has a 2025 population of 18,575. It is also the county seat of Cooke County. Gainesville is currently growing at a rate of 1.28% annually and its population has increased by 6.73% since the most recent census, which recorded a population of 17,404 in 2020.
The average household income in Gainesville is $72,967 with a poverty rate of 19.94%. The median age in Gainesville is 35.4 years: 35.5 years for males, and 35.3 years for females.