ZIP code 01340 is officially located in the state of Massachusetts, primarily serving the city of Colrain. It falls under the administrative jurisdiction of Franklin County. When planning mail delivery, logistics routing, or demographic research, 01340 operates within the Eastern Time (ET) timezone and supports the 764 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 01340 ZIP Code Tabulation Area is approximately 39,964. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $120,340.