ZIP code 55904 is officially located in the state of Minnesota, primarily serving the city of Rochester. It falls under the administrative jurisdiction of Olmsted County. When planning mail delivery, logistics routing, or demographic research, 55904 operates within the Central Time (CT) timezone and supports the 876 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 55904 ZIP Code Tabulation Area is approximately 27,476. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $108,904.