ZIP code 66003 is officially located in the state of Kansas, primarily serving the city of Atchison. It falls under the administrative jurisdiction of Atchison County. When planning mail delivery, logistics routing, or demographic research, 66003 operates within the Central Time (CT) timezone and supports the 738 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 66003 ZIP Code Tabulation Area is approximately Data Not Available. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,003.