ZIP code 37403 is officially located in the state of Tennessee, primarily serving the city of Chattanooga. It falls under the administrative jurisdiction of Hamilton County. When planning mail delivery, logistics routing, or demographic research, 37403 operates within the Central Time (CT) timezone and supports the 890 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 37403 ZIP Code Tabulation Area is approximately 10,690. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,403.