ZIP code 53403 is officially located in the state of Wisconsin, primarily serving the city of Racine. It falls under the administrative jurisdiction of Racine County. When planning mail delivery, logistics routing, or demographic research, 53403 operates within the Central Time (CT) timezone and supports the 222 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 53403 ZIP Code Tabulation Area is approximately 16,322. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,403.