Hanover is a town in Oxford County, Maine, home to about 276 people across 7.0 square miles. Its ZIP code is 04237.
Homes sold for a median of $341 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 Hanover. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Portland International Jetport (PWM)62 miles away |
|---|---|
| Closer regional airport | Augusta State Airport (AUG)47 miles away |
| Nearest city of 250,000+ | Boston, MA150 miles away |
| Nearest city of 1 million+ | New York, NY311 miles away |
Straight-line distances from the center of Hanover; 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.
Hanover had 286 residents in the 2020 census, up 14% since 2000.
It’s the 420th largest of 519 towns in Maine by population.
Oxford County grew from 32,238 residents in 1900 to 57,777 in 2020.
Oxford County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 79°F in summer, and winter lows average 7°F. About 47.2 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Rumford 6sw, ME weather station (3 miles away).
14,143 jobs at 1,381 businesses in Oxford County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
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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.