03837 Frequently Asked Questions

A: ZIP Code 03837 is Located in Gilmanton Iron Works New Hampshire. Portions of 03837 are also in Gilmanton, Alton (town), Barnstead.

A: ZIP Code 03837 is Located Entirely in Belknap County New Hampshire.

A: The Area Code for 03837 is 603.

A: ZIP Code 03837 is in the New Hampshire 1st Congressional District.

A: 03837 is within New Hampshire House of Representatives District Belknap 6 and New Hampshire House of Representatives District Belknap 7.

A: 03837 is within New Hampshire State Senate District 6 and New Hampshire State Senate District 17.

A: The 2022 population of ZIP Code 03837 is 1622. The population growth rate in 03837 is 10.31%. The population density of 03837 is 84.

A: The majority race/ethnicity of people residing in 03837 is White (97.81%). The majority race/ethnicity of students attending public schools in 03837 is White(95.61%).

A: The median household income in 03837 is $98,611 (2021) and the average adjusted income is $360,270 (2021).