ZIP code 63103 is officially located in the state of Missouri, primarily serving the city of Saint louis. It falls under the administrative jurisdiction of St. Louis city County. When planning mail delivery, logistics routing, or demographic research, 63103 operates within the Central Time (CT) timezone and supports the 729 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 63103 ZIP Code Tabulation Area is approximately 35,729. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,103.