Waltham is a town in Hancock County, Maine, home to about 346 people across 30 square miles. It has no ZIP code of its own: it’s part of 04605 and 04634.
Homes sold for a median of $205 per square foot across 2 ZIP codes in the three months ending August 2026, and 0 of 2 were seller’s markets.
Mostly Ellsworth; part is in Waltham
Mostly Franklin; part is in Waltham
Each card is that ZIP code’s whole market, including any part outside Waltham. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Waltham’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Waltham well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Portland International Jetport (PWM)115 miles away |
|---|---|
| Closer regional airport | Hancock County-Bar Harbor Airport (BHB)8 miles away |
| Nearest city of 250,000+ | Boston, MA203 miles away |
| Nearest city of 1 million+ | New York, NY391 miles away |
Straight-line distances from the center of Waltham; 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.
Waltham had 332 residents in the 2020 census, up 8% since 2000.
It’s the 408th largest of 519 towns in Maine by population.
Hancock County grew from 37,241 residents in 1900 to 55,478 in 2020.
Hancock 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 11°F. About 49.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, E Surry, ME weather station (7 miles away).
17,387 jobs at 2,397 businesses in Hancock County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
352 doctors and other health care providers list an office in Waltham’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 30 |
|---|---|
| Specialist doctors | 48 |
| Dentists | 17 |
| Nurse practitioners and physician assistants | 47 |
| Mental health providers | 152 |
| Physical and occupational therapists | 39 |
| Optometrists | 7 |
| Chiropractors | 12 |
| 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 (7 nearby)
Grocery stores (4 nearby)
Pharmacies (2 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 3.5 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 Otis Public Schools, Rsu 24, Ellsworth Public Schools and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Beech Hill SchoolOtis | Pre-K–8 | 70 | Public | 7.7 mi |
| Cave Hill SchEastbrook | Pre-K–5 | 61 | Public | 9.2 mi |
| Ellsworth Elementary-Middle SchoolEllsworth | Pre-K–8 | 740 | Public | 3.2 mi |
| Trenton Elementary SchoolTrenton | Pre-K–8 | 120 | Public | 7.8 mi |
| Lamoine Consolidated SchoolLamoine | K–8 | 137 | Public | 6.3 mi |
| Ellsworth High SchoolEllsworth | 9–12 | 521 | Public | 2.9 mi |
| Hancock County Technical CenterEllsworth | — | — | Career and Technical | 4.3 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Kidspeace National Centers of New EnglandEllsworth | Pre-K–11 | 23 | Nonsectarian | 3.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
Buying or selling around Waltham? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Shares ZIP codes with Ellsworth, Lamoine, Franklin, Trenton, Mariaville, Otis, Eastbrook, Amherst, Central Hancock UT, Osborn and East Hancock 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.