ZIP code 52001 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, 52001 operates within the Central Time (CT) timezone and supports the 481 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 52001 ZIP Code Tabulation Area is approximately 38,281. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $57,001.