ZIP code 03812 is officially located in the state of New hampshire, primarily serving the city of Bartlett. It falls under the administrative jurisdiction of Carroll County. When planning mail delivery, logistics routing, or demographic research, 03812 operates within the Eastern Time (ET) timezone and supports the 338 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 03812 ZIP Code Tabulation Area is approximately 24,138. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $44,812.