ZIP code 52003 is officially located in the state of Iowa, primarily serving the city of Dubuque. It falls under the administrative jurisdiction of Dubuque County. When planning mail delivery, logistics routing, or demographic research, 52003 operates within the Central Time (CT) timezone and supports the 897 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 52003 ZIP Code Tabulation Area is approximately 9,997. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,003.