ZIP code 63019 is officially located in the state of Missouri, primarily serving the city of Crystal city. It falls under the administrative jurisdiction of Jefferson County. When planning mail delivery, logistics routing, or demographic research, 63019 operates within the Central Time (CT) timezone and supports the 856 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 63019 ZIP Code Tabulation Area is approximately 43,556. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $63,019.