Sumner is a town in Oxford County, Maine, home to about 845 people across 44 square miles. Its ZIP code is 04292.
Homes sold for a median of $224 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside Sumner. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Sumner’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)51 miles away |
|---|---|
| Closer regional airport | Augusta State Airport (AUG)32 miles away |
| Nearest city of 250,000+ | Boston, MA144 miles away |
| Nearest city of 1 million+ | New York, NY312 miles away |
Straight-line distances from the center of Sumner; 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.
Sumner had 994 residents in the 2020 census, up 16% since 2000.
It’s the 305th 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 78°F in summer, and winter lows average 9°F. About 51.5 inches of rain and melted snow fall in a typical year, with about 108 inches of snow.
Source: NOAA 1991–2020 climate normals, Hartford, ME weather station (6 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.
Libraries
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.
Public schools here are run by Rsu 10. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Hartford-Sumner Elementary SchoolSumner | Pre-K–6 | 297 | Public | 3.2 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.