ZIP code 03259 is officially located in the state of New hampshire, primarily serving the city of North sandwich. It falls under the administrative jurisdiction of Carroll County. When planning mail delivery, logistics routing, or demographic research, 03259 operates within the Eastern Time (ET) timezone and supports the 472 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 03259 ZIP Code Tabulation Area is approximately 10,272. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $43,259.