ZIP code 55990 is officially located in the state of Minnesota, primarily serving the city of Wykoff. It falls under the administrative jurisdiction of Fillmore County. When planning mail delivery, logistics routing, or demographic research, 55990 operates within the Central Time (CT) timezone and supports the 857 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 55990 ZIP Code Tabulation Area is approximately 35,157. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $70,990.