ZIP code 03431 is officially located in the state of New hampshire, primarily serving the city of Surry. It falls under the administrative jurisdiction of Cheshire County. When planning mail delivery, logistics routing, or demographic research, 03431 operates within the Eastern Time (ET) timezone and supports the 227 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 03431 ZIP Code Tabulation Area is approximately 19,127. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $67,431.