ZIP code 37405 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, 37405 operates within the Central Time (CT) timezone and supports the 761 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 37405 ZIP Code Tabulation Area is approximately 21,061. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $125,405.