Gerster is located in St. Clair County, MO. The population is 7, making Gerster the 7th largest city in St. Clair County.
There are 0 public schools in Gerster with an average Homefacts rating of NA. The total crime rate for Gerster is low , and there are 0 registered sex offenders residing in the city. Unemployment in Gerster is moderate and the median home sales price is $0. Detailed and up-to-date Gerster property reports are available for any property address.