Southport is a town in Lincoln County, Maine, home to about 550 people across 5.4 square miles. Its ZIP codes are 04570 and 04576.
Homes sold for a median of $401 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Each card is that ZIP code’s whole market, including any part outside Southport. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Southport’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)35 miles away |
|---|---|
| Nearest city of 250,000+ | Boston, MA124 miles away |
| Nearest city of 1 million+ | New York, NY309 miles away |
Straight-line distances from the center of Southport; 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.
Southport had 622 residents in the 2020 census, down 9% since 2000.
It’s the 361st largest of 519 towns in Maine by population.
Lincoln County grew from 19,669 residents in 1900 to 35,237 in 2020.
Lincoln County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 76°F in summer, and winter lows average 14°F. About 51.7 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Westport Island, ME weather station (5 miles away).
9,608 jobs at 1,383 businesses in Lincoln County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
2 doctors and other health care providers list an office in Southport’s ZIP codes.
Nearest hospitals
Providers with an office here
| Physical and occupational therapists | 1 |
|---|---|
| Chiropractors | 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 (1 nearby)
Grocery stores
Libraries
Museums (1 nearby)
Theaters and performance venues
Counts are within about 1.5 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 Southport Public Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Southport Central SchoolSouthport | K–6 | 16 | Public | 1.2 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.