ZIP code 59544 is officially located in the state of Montana, primarily serving the city of Whitewater. It falls under the administrative jurisdiction of Phillips County. When planning mail delivery, logistics routing, or demographic research, 59544 operates within the Mountain Time (MT) timezone and supports the 590 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 59544 ZIP Code Tabulation Area is approximately 22,290. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $88,544.