ZIP code 63077 is officially located in the state of Missouri, primarily serving the city of Saint clair. It falls under the administrative jurisdiction of Franklin County. When planning mail delivery, logistics routing, or demographic research, 63077 operates within the Central Time (CT) timezone and supports the 390 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 63077 ZIP Code Tabulation Area is approximately 10,890. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $49,077.