in what county is colleyville?
Homefacts City Report. Colleyville is located in Tarrant County, TX. The population is 23,372. There are 9 public schools in Colleyville with an average Homefacts rating of A-. The total crime rate for Colleyville is very low, and there are 7 registered sex offenders residing in the city. Unemployment in Colleyville is moderate and the median home sales price is $0.