ZIP code 63010 is officially located in the state of Missouri, primarily serving the city of Arnold. It falls under the administrative jurisdiction of Jefferson County. When planning mail delivery, logistics routing, or demographic research, 63010 operates within the Central Time (CT) timezone and supports the 618 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 63010 ZIP Code Tabulation Area is approximately 26,518. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $110,010.