Grain Valley is located in Jackson County, MO. The population is 12,507, making Grain Valley the 7th largest city in Jackson County.
There are 8 public schools in Grain Valley with an average Homefacts rating of A-. The total crime rate for Grain Valley is low , and there are 27 registered sex offenders residing in the city. Unemployment in Grain Valley is low and the median home sales price is $0. Detailed and up-to-date Grain Valley property reports are available for any property address.