ZIP code 83404 is officially located in the state of Idaho, primarily serving the city of Idaho falls. It falls under the administrative jurisdiction of Bonneville County. When planning mail delivery, logistics routing, or demographic research, 83404 operates within the Mountain Time (MT) timezone and supports the 320 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 83404 ZIP Code Tabulation Area is approximately 39,520. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $108,404.