Law Enforcement Agencies in Jonah, TX TX › Williamson County Agencies serving the city of Jonah in TX. Agency Types in Jonah Campus Police 1 agencies Coroners 1 agencies County Jails 1 agencies Municipal Police 1 agencies Sheriff 1 agencies All Agencies in Jonah, TX Georgetown Police Department Williamson County Office Of The Williamson County Justice of the Peace Williamson County Southwestern University Williamson County Williamson County Jail Williamson County Williamson County Sheriffs Department Williamson County
