what county is runge tx in
Homefacts City Report. Runge is located in Karnes County, TX. The population is 983, making Runge the 3rd largest city in Karnes County. There are 4 public schools in Runge with an average Homefacts rating of D+. The total crime rate for Runge is moderate, and there are 3 registered sex offenders residing in the city.