Byrnes Mill is located in Jefferson County, MO. The population is 2,761.
There are 0 public schools in Byrnes Mill with an average Homefacts rating of NA. The total crime rate for Byrnes Mill is very low, and there are 9 registered sex offenders residing in the city. Unemployment in Byrnes Mill is low and the median home sales price is $0. Detailed and up-to-date Byrnes Mill property reports are available for any property address.