ZIP code 59865 is officially located in the state of Montana, primarily serving the city of Saint ignatius. It falls under the administrative jurisdiction of Lake County. When planning mail delivery, logistics routing, or demographic research, 59865 operates within the Mountain Time (MT) timezone and supports the 684 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 59865 ZIP Code Tabulation Area is approximately 4,884. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $45,865.