Gainesville is a city located in Cooke County Texas. It is also the county seat of Cooke County. With a 2020 population of 17,452, it is the 162nd largest city in Texas and the 2076th largest city in the United States . Gainesville is currently growing at a rate of 1.65% annually and its population has increased by 9.06% since the most recent census, which recorded a population of 16,002 in 2010. Gainesville reached it's highest population of 17,452 in 2021. Spanning over 19 miles, Gainesville has a population density of 904 people per square mile.
The average household income in Gainesville is $53,887 with a poverty rate of 24.65%. The median rental costs in recent years comes to $889 per month, and the median house value is $107,900. The median age in Gainesville is 33.4 years, 30.3 years for males, and 36 years for females.