St. Marie is located in Valley County, MT. The population is 303, making St. Marie the 2nd largest city in Valley County.
There are 0 public schools in St. Marie with an average Homefacts rating of NA. The total crime rate for St. Marie is moderate , and there are 0 registered sex offenders residing in the city. Unemployment in St. Marie is low and the median home sales price is $0. Detailed and up-to-date St. Marie property reports are available for any property address.