ZIP code 83402 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, 83402 operates within the Mountain Time (MT) timezone and supports the 429 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 83402 ZIP Code Tabulation Area is approximately 23,529. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $74,402.