Dayton is a town in York County, Maine, home to about 2,313 people across 18 square miles. It has no ZIP code of its own: it’s part of 04005.
Homes sold for a median of $308 per square foot in the three months ending August 2026, a seller’s market.
Mostly Biddeford; part is in Dayton
Each card is that ZIP code’s whole market, including any part outside Dayton. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Dayton’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)14 miles away |
|---|---|
| Nearest city of 250,000+ | Boston, MA84 miles away |
| Nearest city of 1 million+ | New York, NY264 miles away |
Straight-line distances from the center of Dayton; 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.
Dayton had 2,129 residents in the 2020 census, up 18% since 2000.
It’s the 150th largest of 519 towns in Maine by population.
York County grew from 64,885 residents in 1900 to 211,972 in 2020.
York County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 77°F in summer, and winter lows average 13°F. About 52 inches of rain and melted snow fall in a typical year, with about 49 inches of snow.
Source: NOAA 1991–2020 climate normals, Kennebunkport, ME weather station (9 miles away).
56,640 jobs at 5,914 businesses in York County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
687 doctors and other health care providers list an office in Dayton.
Nearest hospitals
Providers with an office here
| Primary care doctors | 56 |
|---|---|
| Specialist doctors | 142 |
| Dentists | 26 |
| Nurse practitioners and physician assistants | 148 |
| Mental health providers | 226 |
| Physical and occupational therapists | 72 |
| Optometrists | 7 |
| Chiropractors | 10 |
| Pharmacies | 9 |
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 (16 nearby)
Grocery stores (4 nearby)
Pharmacies (4 nearby)
Libraries (4 nearby)
Museums (1 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 3 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 Dayton Public Schools, Biddeford Public Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Dayton Consolidated SchoolDayton | Pre-K–5 | 128 | Public | 6.3 mi |
| John F Kennedy Memorial SchoolBiddeford | Pre-K–K | 157 | Public | 1.6 mi |
| Biddeford Primary SchoolBiddeford | K–2 | 483 | Public | 1.6 mi |
| Biddeford Intermediate SchoolBiddeford | 3–4 | 357 | Public | 1.8 mi |
| Biddeford Middle SchoolBiddeford | 5–7 | 542 | Public | 1.8 mi |
| Biddeford High SchoolBiddeford | 8–12 | 894 | Public | 0.8 mi |
| Biddeford Regional Ctr of TechBiddeford | — | — | Career and Technical | 0.9 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 Biddeford.
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.