ZIP code 80229 is officially located in the state of Colorado, primarily serving the city of Thornton. It falls under the administrative jurisdiction of Adams County. When planning mail delivery, logistics routing, or demographic research, 80229 operates within the Mountain Time (MT) timezone and supports the 300 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 80229 ZIP Code Tabulation Area is approximately 38,100. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $133,229.