ZIP code 07004 is officially located in the state of New jersey, primarily serving the city of Fairfield. It falls under the administrative jurisdiction of Essex County. When planning mail delivery, logistics routing, or demographic research, 07004 operates within the Eastern Time (ET) timezone and supports the 661 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 07004 ZIP Code Tabulation Area is approximately 37,761. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $108,004.