Home > NH > Belknap County > Center Barnstead > Zip 03225

Zip Code 03225 — Center Barnstead, NH

03225 is a ZIP Code associated with Center Barnstead, NH, located within Belknap. The postal region supports an estimated population of 3,834 residents across Data Pending housing units, with a population density of 53.3 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.360010, -71.238280)

Data Metric	Local Statistic
Postal / Zip Code	03225
Primary City	Center Barnstead
State / Province	NH
County	Belknap
Total Population	3,834
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	53.3 people/sq mi
Timezone	America/New_York

How 03225 Compares

Metric	ZIP 03225	Belknap County	NH State Average
Population	3,834	60,615	1,394,951
Median Income	Data Pending	N/A	N/A
Population Density	53.3 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 03218	Barnstead	3.1 mi	1,160	N/A
Zip 03263	Pittsfield	5.8 mi	4,105	N/A
Zip 03837	Gilmanton Iron Works	6.2 mi	1,451	N/A
Zip 03809	Alton	6.6 mi	3,680	N/A
Zip 03884	Strafford	7.1 mi	4,306	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →