ZIP code 81623 is officially located in the state of Colorado, primarily serving the city of Marble. It falls under the administrative jurisdiction of Garfield County. When planning mail delivery, logistics routing, or demographic research, 81623 operates within the Mountain Time (MT) timezone and supports the 350 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 81623 ZIP Code Tabulation Area is approximately 9,450. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $131,623.