ZIP code 63556 is officially located in the state of Missouri, primarily serving the city of Milan. It falls under the administrative jurisdiction of Sullivan County. When planning mail delivery, logistics routing, or demographic research, 63556 operates within the Central Time (CT) timezone and supports the 848 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 63556 ZIP Code Tabulation Area is approximately 36,548. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $92,556.