ZIP code 59036 is officially located in the state of Montana, primarily serving the city of Harlowton. It falls under the administrative jurisdiction of Wheatland County. When planning mail delivery, logistics routing, or demographic research, 59036 operates within the Mountain Time (MT) timezone and supports the 637 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 59036 ZIP Code Tabulation Area is approximately 6,937. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $52,036.