ZIP code 84021 is officially located in the state of Utah, primarily serving the city of Duchesne. It falls under the administrative jurisdiction of Duchesne County. When planning mail delivery, logistics routing, or demographic research, 84021 operates within the Mountain Time (MT) timezone and supports the 248 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 84021 ZIP Code Tabulation Area is approximately 30,348. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $97,021.