Matinicus Isle is a plantation in Knox County, Maine, home to about 48 people across 2.4 square miles. Its ZIP code is 04851, and parts of 04854 are in Matinicus Isle too.
Mostly Matinicus Isle; also Criehaven UT
Mostly Owls Head; part is in Matinicus Isle
Each card is that ZIP code’s whole market, including any part outside Matinicus Isle. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Matinicus Isle’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)70 miles away |
|---|---|
| Closer regional airport | Knox County Regional Airport (RKD)11 miles away |
| Nearest city of 250,000+ | Boston, MA152 miles away |
| Nearest city of 1 million+ | New York, NY340 miles away |
Straight-line distances from the center of Matinicus Isle; 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.
Matinicus Isle had 53 residents in the 2020 census, up 4% since 2000.
It’s the 498th largest of 519 towns in Maine by population.
Knox County grew from 30,406 residents in 1900 to 40,607 in 2020.
Knox County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 74°F in summer, and winter lows average 17°F. About 47.6 inches of rain and melted snow fall in a typical year, with about 53 inches of snow.
Source: NOAA 1991–2020 climate normals, Tenants Harbor, ME weather station (13 miles away).
14,502 jobs at 1,823 businesses in Knox 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.
Public schools here are run by Rsu 65/Msad 65. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Matinicus Elementary SchoolMatinicus Isle Plantation | K–8 | — | Public | 6.2 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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Shares ZIP codes with Owls Head, Criehaven UT and Muscle Ridge Islands UT.
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.