ZIP code 03605 is officially located in the state of New hampshire, primarily serving the city of East lempster. It falls under the administrative jurisdiction of Sullivan County. When planning mail delivery, logistics routing, or demographic research, 03605 operates within the Eastern Time (ET) timezone and supports the 278 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 03605 ZIP Code Tabulation Area is approximately 10,778. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $125,605.