03237 Frequently Asked Questions

A: ZIP Code 03237 is Located in Gilmanton New Hampshire. Portions of 03237 are also in Canterbury, Alton (town).

A: ZIP Code 03237 is Located Primarily in Belknap County New Hampshire with Portions in Merrimack County.

A: The Area Code for 03237 is 603.

A: 03237 is within by the New Hampshire 1st Congressional District and the New Hampshire 2nd Congressional District.

A: 03237 is within New Hampshire House of Representatives District Belknap 6, New Hampshire House of Representatives District Belknap 7 and New Hampshire House of Representatives District Merrimack 4.

A: 03237 is within New Hampshire State Senate District 6 and New Hampshire State Senate District 17.

A: The 2022 population of ZIP Code 03237 is 2338. The population growth rate in 03237 is 0.86%. The population density of 03237 is 57.

A: The majority race/ethnicity of people residing in 03237 is White (94.87%).

A: The median household income in 03237 is $84,199 (2021) and the average adjusted income is $433,300 (2021).