ZIP code 46637 is officially located in the state of Indiana, primarily serving the city of South bend. It falls under the administrative jurisdiction of St. Joseph County. When planning mail delivery, logistics routing, or demographic research, 46637 operates within the Central Time (CT) timezone and supports the 604 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 46637 ZIP Code Tabulation Area is approximately 16,004. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $69,637.