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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2022

ZIP Codes for City of Gilmanton, NH

Gilmanton, NH Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 03237StandardBelknap2,254603

Timezone(s):Eastern (GMT -05:00)
Counties:BELKNAP, NH
Population:2,254 (More Details)
Male Population:1,135
Female Population:1,119
Median Age:45
ZIP Codes:1
Area Codes:1
Total Area:469 square miles (county)
Land Area:400 square miles (county)
Water Area:68 square miles (county)

Gilmanton, NH Demographic Information *

There is no Census data for the city of GILMANTON, NH. We have pulled information for the ZIP Code 03237 instead.
Total population2,254
Male population1,135
Female population1,119
Median age (years)45.1
White Population2,198
Black Population2
Indian Population2
Asian Population22
Hawaiian Population0
Hispanic Population10
Median age (Male)45.2
Median age (Female)45.1
Total households895
Family households (families)673
Average household size2.52
Average family size2.81
Total housing units1,271
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 6/1/2022],
  2. Internal Data Creation [Last Updated: 6/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],