The Old Town House, also known as the Union Town House, is a historic government building at 128 Town House Road in Union, Maine. Built in 1840, it served the town for many years as its town hall, and as one of its major social venues.

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5 on the National Register · #79 in MEHistoric places →

Know Union

The town at a glance, and the guide to how things work

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About Union

Town in Maine, United States

1786Established

2,383Population

34.5 sq miArea

43 ftElevation

Union is a town in Knox County, Maine, United States. The population was 2,383 at the 2020 census. Union is home to the Matthews Museum of Maine Heritage as well as the annual Union agricultural fair.

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

How Union ranks

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#24Most library borrowing in ME #36Lowest obesity in ME #48Fastest growing in ME All ME rankings →

Town numbers

ZIP code04862

Area code207

Living in Union

Housing in Union

$395K▲ 1.7% in a year Typical home value · Zillow

The typical Union home is worth about $395,000, up 1.7% in a year, 5% below the Maine typical home.

Zillow Home Value Index · Redfin Data CenterHousing market →

Work & commute in Union

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Most working residents leave Union for work: only 9% work in town. The top destinations are Rockland (12%), Rockport (9%) and Augusta (7%). Half commute less than 14 miles.

Rockland

12%

Rockport

Augusta

Camden

9%Work in townlive and work in Union 14 miWhere do people commute?the commute map 428Jobs based herea commuter town

Census LEHD 2023 · ACSWork & commute in Union →

Health in Union

Health Grade B

Healthier than 58% of U.S. towns on seven CDC estimates.

Compared with Maine

1better than ME

of 32 measures CDC estimates. The other 31 are too close to call.

Conditions 1▲ 11 close Habits all close Care all close Mind all close Everyday needs all close

BetterToo close to callWorse

What stands out

11.3%Fewer older adults who have lost all their teethME 14.8% · better

Care nearby

Mainehealth Pen Bay HospitalRockport · 11.7 mi · ER

Mid-Coast Health Net/Knox Clinic Main SiteRockland · 12.2 mi · sliding-scale fees

Primary careNo shortage

DentalNo shortage

Mental healthNo shortage

CDC PLACES 2025 · modeled estimates for adults · ZIP code 04862 · CMS · HRSAHealth in Union →

Natural hazards in Union

Low

Expected storm and flood damage is higher than in 38% of U.S. communities.

🌊 Inland flooding🌀 Hurricanes🧊 Ice storms

3Does Union flood?paid flood claims since 1987 13Disasters that paid out herefederal disasters sent FEMA money to Union MapUnion vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Union →

Climate in Union

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Union has cold, snowy winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 78°, a January night drops to 11°, and about 69 inches of snow falls in a normal winter.

33° / 15°Winter

52° / 32°Spring

76° / 56°Summer

58° / 40°Fall

How much snow does Union get?About 69 inches a winter.Rain & snow →When is the first frost?Around Oct 19, with the last in spring around Apr 27.Frost dates →Is it warmer than it used to be?+1.7° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in Union →

Schools in Union

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C⁺

School Grade C+

The public schools Union’s kids attend, from kindergarten through graduation, trail 60% of Maine’s districts on state tests and graduation. Among towns with similar incomes, they sit near the middle.

DistrictRSU 40/MSAD 40Schools1

Union Elementary C-Elementary · Grades PK–6 · 125 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within ME. Ratings are from neighbors.