what county is granger, in in
Homefacts City Report. Granger is located in St. Joseph County, IN. The population is 27,656, making Granger the 3rd largest city in St. Joseph County. There are 5 public schools in Granger with an average Homefacts rating of A+. The total crime rate for Granger is moderate, and there are 12 registered sex offenders residing in the city.