ZIP code 86503 is officially located in the state of Arizona, primarily serving the city of Chinle. It falls under the administrative jurisdiction of Apache County. When planning mail delivery, logistics routing, or demographic research, 86503 operates within the Mountain Time (MT) timezone and supports the 428 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 86503 ZIP Code Tabulation Area is approximately 38,228. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,503.