what county is redding, ca in?
Homefacts City Report. Redding is located in Shasta County, CA. The population is 90,750, making Redding the largest city in Shasta County. There are 50 public schools in Redding with an average Homefacts rating of B+. The total crime rate for Redding is moderate, and there are 361 registered sex offenders residing in the city.