ZIP code 59477 is officially located in the state of Montana, primarily serving the city of Simms. It falls under the administrative jurisdiction of Cascade County. When planning mail delivery, logistics routing, or demographic research, 59477 operates within the Mountain Time (MT) timezone and supports the 632 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 59477 ZIP Code Tabulation Area is approximately 25,832. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $49,477.