ZIP code 07831 is officially located in the state of New jersey, primarily serving the city of Califon. It falls under the administrative jurisdiction of Hunterdon County. When planning mail delivery, logistics routing, or demographic research, 07831 operates within the Eastern Time (ET) timezone and supports the 567 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 07831 ZIP Code Tabulation Area is approximately Data Not Available. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $67,831.