ZIP code 83853 is officially located in the state of Idaho, primarily serving the city of Porthill. It falls under the administrative jurisdiction of Boundary County. When planning mail delivery, logistics routing, or demographic research, 83853 operates within the Central Time (CT) timezone and supports the 283 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 83853 ZIP Code Tabulation Area is approximately 10,783. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $41,853.