Barnstead is a town in Belknap County, New Hampshire, home to about 4,994 people across 43 square miles. Its ZIP codes are 03218 and 03225.
Homes sold for a median of $331 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Each card is that ZIP code’s whole market, including any part outside Barnstead. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Barnstead’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Portland International Jetport (PWM)52 miles away |
|---|---|
| Closer regional airport | Portsmouth International Airport at Pease (PSM)29 miles away |
| Nearest city of 250,000+ | Boston, MA71 miles away |
| Nearest city of 1 million+ | New York, NY231 miles away |
Straight-line distances from the center of Barnstead; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Barnstead had 4,915 residents in the 2020 census, up 26% since 2000.
It’s the 73rd largest of 242 towns in New Hampshire by population.
Belknap County grew from 19,526 residents in 1900 to 63,705 in 2020.
Belknap County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 13°F. About 41.9 inches of rain and melted snow fall in a typical year, with about 68 inches of snow.
Source: NOAA 1991–2020 climate normals, Concord Muni Ap, NH weather station (16 miles away).
21,197 jobs at 1,905 businesses in Belknap County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
9 doctors and other health care providers list an office in Barnstead’s ZIP codes.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|---|
| Mental health providers | 4 |
| Physical and occupational therapists | 3 |
| Chiropractors | 1 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (4 nearby)
Grocery stores
Pharmacies
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 4.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1767.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Barnstead School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Barnstead Elementary SchoolCtr. Barnstead | Pre-K–8 | 449 | Public | 0.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.