Greenbush is a town in Penobscot County, Maine, home to about 1,378 people across 44 square miles. Its ZIP code is 04418.
Homes sold for a median of $208 per square foot in the three months ending August 2026, a seller’s market.
Mostly Greenbush; also East Central Penobscot UT
Each card is that ZIP code’s whole market, including any part outside Greenbush. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Greenbush’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)128 miles away |
|---|---|
| Closer regional airport | Bangor International Airport (BGR)21 miles away |
| Nearest city of 250,000+ | Boston, MA223 miles away |
| Nearest city of 1 million+ | New York, NY406 miles away |
Straight-line distances from the center of Greenbush; 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.
Greenbush had 1,444 residents in the 2020 census, up 2% since 2000.
It’s the 223rd largest of 519 towns in Maine by population.
Penobscot County grew from 76,246 residents in 1900 to 152,199 in 2020.
Penobscot 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 6°F. About 44.8 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Old Town 2 W, ME weather station (11 miles away).
60,749 jobs at 4,222 businesses in Penobscot 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 Greenbush.
Nearest hospitals
Providers with an office here
| Physical and occupational therapists | 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.
Public schools here are run by Greenbush Public Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Helen S Dunn Elementary SchoolGreenbush | Pre-K–8 | 131 | Public | 3.5 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 East Central Penobscot 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.