ZIP code 81121 is officially located in the state of Colorado, primarily serving the city of Arboles. It falls under the administrative jurisdiction of Archuleta County. When planning mail delivery, logistics routing, or demographic research, 81121 operates within the Mountain Time (MT) timezone and supports the 771 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 81121 ZIP Code Tabulation Area is approximately 17,571. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $97,121.