Sandown is a town in Rockingham County, New Hampshire, home to about 6,628 people across 14 square miles. Its ZIP code is 03873.
Homes sold for a median of $324 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Sandown. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Sandown’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Boston Logan International Airport (BOS)40 miles away |
|---|---|
| Closer regional airport | Manchester-Boston Regional Airport (MHT)13 miles away |
| Nearest city of 250,000+ | Boston, MA42 miles away |
| Nearest city of 1 million+ | New York, NY211 miles away |
Straight-line distances from the center of Sandown; 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.
Sandown had 6,548 residents in the 2020 census, up 27% since 2000.
It’s the 50th largest of 242 towns in New Hampshire by population.
Rockingham County grew from 51,118 residents in 1900 to 314,176 in 2020.
Rockingham County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 15°F. About 46.7 inches of rain and melted snow fall in a typical year, with about 76 inches of snow.
Source: NOAA 1991–2020 climate normals, W Hampstead, NH weather station (2 miles away).
152,257 jobs at 10,266 businesses in Rockingham County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
10 doctors and other health care providers list an office in Sandown.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 2 |
|---|---|
| Mental health providers | 4 |
| Physical and occupational therapists | 4 |
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 (6 nearby)
Grocery stores
Pharmacies
Libraries (1 nearby)
Museums (1 nearby)
Counts are within about 2.5 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 1756.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Timberlane Regional School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Sandown Central SchoolSandown | Pre-K–K | 154 | Public | 0.4 mi |
| Sandown North Elementary SchoolSandown | 1–5 | 322 | Public | 1.9 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.