 About 10.90% of families and 14.10% of the population were below the poverty line, including 19.80% of those under age 18 and 10.70% of those age 65 or over.Median house values in 2015 were $118,254.The Texas Juvenile Justice Department operates the Gainesville State School in an unincorporated area in Cooke County, east of Gainesville.