252 years in pictures
Census counts: 199 in 1790, a low of 199 in 1790, 2,383 in 2020. The archive holds 18 old photos and papers going back to 1790 and 4 maps from 1913 on.
5 places on the National Register of Historic Places.
- 1774Union is settled
Each edition grades its towns against each other only.

Union’s best subject grades are an A for history and an A− for civic life; its weakest is a C for schools. Union’s July high is 78°F, below both the Maine town median (79°F) and the median of U.S. towns (85°F). Among 144 Maine towns, just 5 have a higher share of children under 18 than Union. Its National Register listings include Ebenezer Alden House and Lermond Mill. Union has fewer than 2,500 residents, so it gets subject grades but no overall grade.
Where Union beats most towns.
Ebenezer Alden HouseCensus counts: 199 in 1790, a low of 199 in 1790, 2,383 in 2020. The archive holds 18 old photos and papers going back to 1790 and 4 maps from 1913 on.
5 places on the National Register of Historic Places.
Each subject compared with towns across the country (schools within Maine), ordered by how far Union is from typical.
How TownRatings grades towns →
Who provides power, water and the rest in Union, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Aug 3, 2026.
Ordered by what stands out in Union.
Most working residents leave Union for work: only 9% work in town. Union’s average trip to work is 29 minutes, above both Maine’s towns (25 minutes) and U.S. towns (25 minutes). Since 2013, Union has added 102 jobs, to 428 in 2023.
| Union | Maine towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 29 minutes | 25 minutes | 25 minutes |
| Work from home | 16% | 14% | 11% |
| Working residents who work in town | 9.3% | 12% | 8% |
Census LEHD 2023 · ACS
Its public schools are run by RSU 40/MSAD 40. Its one school is below.
| School | Level | Students | Letter |
|---|---|---|---|
| Union ElementaryLargest public elementary schoolGrades PK–6 | Grades PK–6 | 125 | C− |
NCES · EDFacts · graded within ME on state tests and graduation
Union has cold, snowy winters and pleasant summers, with plenty of rain. The January low in Union is 11°F.
NOAA U.S. Climate Normals, 1991–2020
Children under 18 are 25% of residents (18% statewide); adults 35 to 64 are 35% of residents (40% statewide). Union has grown 3.1% since 2020, to 2,444 residents in the Census Bureau’s 2025 estimate. 34% of adults 25 and older have a bachelor’s degree or more, vs 36% across Maine.
| Union | Maine towns | U.S. towns | |
|---|---|---|---|
| Median age | 41.6 years | 44.9 years | 40.5 years |
| Bachelor’s degree or more, 25+ | 34% | 32% | 29% |
| Aged 65 or older | 21% | 22% | 18% |
49% women, 51% men
That’s an even split within the survey’s margin of ±4.6 points. Across Maine, 50.7% of residents are women.
| Union | ME | U.S. | |
|---|---|---|---|
| Under 10 | 16.5% | 9.5% | 11.6% |
| 10 to 17 | 8.4% | 8.5% | 10.3% |
| 18 to 24 | 2.7% | 8% | 9.1% |
| 25 to 34 | 16.4% | 12% | 13.7% |
| 35 to 44 | 10.4% | 12.2% | 13.2% |
| 45 to 54 | 15.9% | 12.2% | 12.2% |
| 55 to 64 | 8.2% | 15.1% | 12.7% |
| 65 to 74 | 13.6% | 13.4% | 10.2% |
| 75 and older | 7.8% | 8.9% | 7% |
| No diploma | 2.5% | 5.2% | 10.4% |
| High school | 31.2% | 30.1% | 26% |
| Some college | 16.6% | 18.1% | 19.1% |
| Associate’s | 15.3% | 10.4% | 8.8% |
| Bachelor’s | 24.8% | 22.5% | 21.6% |
| Graduate | 9.6% | 13.7% | 14.1% |
Census population estimates, 2025 · U.S. Census Bureau · ACS 2020-2024 5-year estimates · in a town of 2,400, single groups can be off by several points
Expected storm and flood damage is lower than in 62% of U.S. communities. Since 1987, 3 flood insurance claims have been paid out in Union.
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
Union beats the Maine average on 1 of 32 CDC measures and trails it on 0. 31% of adults sleep under 7 hours in Union.
| Union | Maine towns | U.S. towns | |
|---|---|---|---|
| Sleep under 7 hours (CDC PLACES) | 31% | 33% | 36% |
| Feel lonely (CDC PLACES) | 30% | 32% | 33% |
| Binge drink (CDC PLACES) | 14% | 15% | 16% |
| Obesity (CDC PLACES) | 31% | 33% | 35% |
| What stands out | Union | ME |
|---|---|---|
| Fewer older adults who have lost all their teeth | 11.3% | 14.8% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
5.7 miles of trail in 8 parks and preserves. Union’s trail density is 0.2 miles per square mile. The biggest park or preserve is Clarry Hill Highlands, at 212 acres.
| Union | Maine towns | U.S. towns | |
|---|---|---|---|
| Miles of trail per square mile | 0.2 miles per square mile | 0.7 | 0.4 |
| Conserved land | 5.2% | 4.7% | 4.3% |
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Acre Island Preserve | 1.8 mi | 80 |
| 2. Clarry Hill Highlands | 0.3 mi | 212 |
| 3. Clarry Hill Preserve | 0.3 mi | 66 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
The typical Union home is worth about $390,000, up 1.5% in a year, 5% below the Maine typical home. 86% of Union households own their home.
| Union | Maine towns | U.S. towns | |
|---|---|---|---|
| Households that own their home | 86% | 81% | 73% |
| Median rent | $1,179 a month | $1,106 a month | $1,185 a month |
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
Museums, parks, gardens and other places to visit around Union. Close and well known come first.
Big draw34 mi National ParkAcadia National Park4.1M visitors a year
33 mi LandmarkFort Knox
12 mi MuseumFarnsworth Art Museum
29 mi LighthousePemaquid Point Light
31 mi GardenCoastal Maine Botanical Gardens7 mi Ski areaCamden Snow Bowl31 runs · 836 ft verticalAcadia National Park: Plh1234us, CC BY-SA 3.0 · Fort Knox: Unknown, Public domain · Farnsworth Art Museum: Panoramio user MementoMori, CC BY 3.0 · Pemaquid Point Light: WestportWiki, CC BY-SA 3.0 · Coastal Maine Botanical Gardens: CMBG editor, CC BY-SA 4.0
1 within 15 miles of the center of Union
About 4 of every 100 Union residents are enrolled in college, against 6 across Maine.
Where Union’s working residents go each day. Line width shows the share.
Census LEHD 2023
5 places in Union on the National Register of Historic Places.
4 notable people were born in Union.
Town in Maine, United States
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)
5 towns share a border with Union.
| Town | ME rank | Overall | Cost | Safety | Schools | Health |
|---|---|---|---|---|---|---|
| Union | — | — | C+ | — | C | B |
| Washington | — | — | B+ | — | C | B− |
| Warren | #81 | C+ | C+ | — | C | B |
| Appleton | — | — | C | — | A | B |
| Hope | — | — | C− | — | A | B+ |
| Waldoboro | #54 | B | B | B+ | C | B+ |
Union, Washington, Appleton and Hope have fewer than 2,500 residents, so they get subject grades but no overall grade. Union, Washington, Warren, Appleton and Hope report no FBI crime data of their own. Compare Union with a neighbor →
Short answers, built from the data on this page.
That is 5.3 years of the area's median household income ($74,096 across the county). Cost of living, which also weighs rents, property taxes and how many households pay 30% or more of their income for housing, grades C+.
4 notable people were born here, including Christine Savage and Franz U. Burkett.