ZIP code 03261 is officially located in the state of New hampshire, primarily serving the city of Northwood. It falls under the administrative jurisdiction of Rockingham County. When planning mail delivery, logistics routing, or demographic research, 03261 operates within the Eastern Time (ET) timezone and supports the 621 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 03261 ZIP Code Tabulation Area is approximately 26,521. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $77,261.