Marlborough is a town in Cheshire County, New Hampshire, home to about 2,207 people across 20 square miles. Its ZIP code is 03455.
Homes sold for a median of $195 per square foot in the three months ending August 2026, a seller’s market.
Mostly Marlborough; also Roxbury
Each card is that ZIP code’s whole market, including any part outside Marlborough. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Marlborough’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Bradley International Airport (BDL)71 miles away |
|---|---|
| Closer regional airport | Manchester-Boston Regional Airport (MHT)39 miles away |
| Nearest city of 250,000+ | Boston, MA72 miles away |
| Nearest city of 1 million+ | New York, NY178 miles away |
Straight-line distances from the center of Marlborough; 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.
Marlborough had 2,096 residents in the 2020 census, up 4% since 2000.
It’s the 134th largest of 242 towns in New Hampshire by population.
Cheshire County grew from 31,321 residents in 1900 to 76,458 in 2020.
Cheshire 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 10°F. About 46.3 inches of rain and melted snow fall in a typical year, with about 60 inches of snow.
Source: NOAA 1991–2020 climate normals, Keene, NH weather station (7 miles away).
27,755 jobs at 2,001 businesses in Cheshire County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Marlborough.
Nearest hospitals
Providers with an office here
| Mental health providers | 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 (2 nearby)
Grocery stores
Pharmacies
Libraries
Museums
Theaters and performance venues
Counts are within about 3 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.
Public schools here are run by Marlborough School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Marlborough Elementary SchoolMarlborough | Pre-K–8 | 164 | Public | 0.9 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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Shares ZIP codes with Roxbury.
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.