Union center
1043 Buckley Highway, Union, CT 06076
Living in Union, Connecticut
Union is a town in the northeastern corner of Tolland County, part of the Last Green Valley National Heritage Corridor. It includes the village of Mashapaug at the Massachusetts state line and sits about 33 miles northeast of Hartford. Nearly 34,000 acres of forestland lie within the town, including Bigelow Hollow State Park and Nipmuck State Forest, and Union has the highest town center in eastern Connecticut.
Union at a glance
- 22.76 millsReal estate tax rate, fiscal year 2026–27
- TollandCounty
Union's villages and zip codes
Union uses ZIP code 06076.
| Area | Zip code | Where it is |
|---|---|---|
| Union center | 06076 | Along Buckley Highway (Route 171), where Town Hall is located. |
| Mashapaug | 06076 | A village in the Eastern Uplands at the Massachusetts state line. |
Union covers about 29.8 square miles. It was incorporated in 1734.
Things to do in Union, CT
Start with Bigelow Hollow State Park and Nipmuck State Forest.
Bigelow Hollow State Park
A state park in Union with Bigelow Hollow Pond and Breakneck Pond, connecting to Nipmuck State Forest trails. Most of the town's outdoor activity centers here.
Union, CT
Nipmuck State Forest
State forest land covering a large share of Union, used for hiking, hunting, fishing, and snowmobiling.
Union, CT
A little history
Union was the last town east of the Connecticut River to be settled, and was officially established in 1734 after the General Assembly sold the land to proprietors.
Union has the highest town center in eastern Connecticut at 1,015 feet elevation, and Burley Hill in the town's northwest is the highest point in eastern Connecticut at 1,315 feet; Interstate 84 also reaches its highest elevation in Connecticut, 1,002 feet, within Union.
Approximately one-third of Union is state park and forest land, including Bigelow Hollow State Park and Nipmuck State Forest, totaling nearly 34,000 acres of forestland in town.
Parks, trails and outdoors in Union
Union's nearly 34,000 acres of forestland make it a center for hiking, fishing, hunting, camping, and snowmobiling in northeastern Connecticut.
- Bigelow Hollow State ParkIncludes Bigelow Hollow Pond and Mashapaug Lake area, the focus of most outdoor activity in town.
- Nipmuck State ForestState forest trails used for hiking and snowmobiling, adjoining Bigelow Hollow State Park.
- Mashapaug LakeA lake in the Mashapaug village area near the Massachusetts line, a focus of recreation within Bigelow Hollow State Park.
Walkability and getting around Union
Union has no walkable commercial center; its roads, including Route 171 and I-84, are built for driving, and most activity is oriented around the state park and forest trails rather than a downtown.
Mashapaug
Drive times
- Hartford, about 33 miles
- Bradley International Airport
Approximate, without traffic.
By bus or train
Union has no fixed-route public transit.
Union property taxes and home prices
Union's 2026–27 mill rate is 22.76, which is $22.76 of tax for every $1,000 of assessed value. Connecticut taxes a home at 70% of its appraised value, so every $100,000 of value costs about $1,593 a year in taxes at 22.76 mills.
What homes in Union sell for
The state sales file does not yet include complete Union sales for October 2024 to September 2025. Text us for recent sales.
October to September, state records. Text us for this month's sales.
Union's mill rate for 2026–27
22.76mills, fiscal year 2026–27
- Town of Union22.76 mills
- Motor vehicles22.76 mills
- Next revaluationOctober 1, 2028
How Union's mill rate has changed
| Fiscal year | Town rate |
|---|---|
| 2022–23 | 27.85 |
| 2023–24 | 28.35 |
| 2024–25 | 22.78 |
| 2025–26 | 23.68 |
| 2026–27 | 22.76 |
Union's town rate went from 27.85 in 2022–23 to 22.76 in 2026–27. Next revaluation: October 1, 2028.
Look up a Union property
- FEMA flood mapWhether a lender will require flood insurance
- Town ClerkLand records, deeds and vital records
- Assessor's officeQuestions about an assessment
Buying a home in Union
Things to look into on a Union purchase: CHFA limits, the flood map, foundations and well & septic.
CHFA home loans in Union
CHFA sets income and purchase price limits town by town, and some census tracts are Targeted Areas with different rules. We check them with you before you shop.
See CHFA's limits map (opens in a new tab)Check the flood zone first
Flood zones are set address by address. We take an early look at FEMA's map before you offer. That's not a flood determination: the official determination ordered with your loan decides whether flood insurance is required.
FEMA's flood map for Union (opens in a new tab)Ask about foundation testing
CFSIC, Connecticut's program for homes with crumbling concrete foundations, has a resource page for Union. If a home was built in 1983 or later with a poured concrete foundation, ask whether it has been tested.
CFSIC's Union page (opens in a new tab)All properties use private wells and septic
Union has no town water or sewer system, so every property relies on a private well and septic system. Buyers should budget for well and septic inspections as part of due diligence.
All loans are subject to credit approval, underwriting, and property and program requirements. CHFA and USDA limits and eligibility are set by those agencies and change from time to time.
Thinking about buying in Union?
Send us a Union address and we'll run the numbers, taxes included.
Moving to Union: utilities, trash and town offices
Who to call in Union: Eversource for power.
- ElectricEversource
- Natural gasNo natural gas service
- WaterMostly private wells
- Sewer or septicNo town sewer system; properties rely on private septic systems.
- Trash and recyclingUnion residents use the town transfer station for trash and recycling rather than curbside pickup; annual permits are sold through the town.
Town offices and contacts
Union Town Hall is at 1043 Buckley Highway, Union, CT 06076. Hours: Tuesday 9 AM-12 PM; Wednesday 9 AM-12 PM and 1-3 PM; Thursday 9 AM-12 PM. Main line: 860-684-3812. Each link opens that office's page on the town's website.
- Town HallMain line and town website860-684-3812
- Town ClerkLand records, vital records, and elections.860-684-3770
- AssessorProperty values and assessments.
- Tax CollectorProperty tax billing and payment.
- Building OfficialBuilding permits and inspections.
- Planning & Zoning CommissionZoning and land-use applications.
- Public WorksRoads and town infrastructure, including the transfer station.
- The Little School on the HillUnion's own public elementary school district.
Union, CT FAQ: taxes, prices and town services
The short answers. Call or text us for the long ones.
What is the mill rate in Union, CT?
Union's 2026–27 mill rate is 22.76, which is $22.76 of tax for every $1,000 of assessed value. The motor vehicle rate is 22.76 mills.
How much are property taxes on a $500,000 home in Union?
Connecticut assesses homes at 70% of appraised value, so a $500,000 home would be assessed at about $350,000. At 22.76 mills that's about $7,966 a year, or about $664 a month. The actual bill depends on the town assessor's appraisal, not the price you pay.
When is Union's next revaluation?
Union's next revaluation takes effect October 1, 2028, on the state's schedule. The new assessments first show up on the tax bills due in July 2029.
What county is Union, CT in?
Union is in Tolland County, within the Northeastern Connecticut Planning Region.
What ZIP code does Union use?
Union uses ZIP code 06076.
Is there curbside trash pickup in Union?
No. Union residents use the town transfer station rather than curbside collection.
Is there public transit in Union?
No. Union has no fixed-route public transit.
How far is Union from Hartford?
Union is about 33 miles northeast of Hartford.
What are Town Hall's hours?
Union Town Hall, at 1043 Buckley Highway, is open Tuesday 9 AM-12 PM, Wednesday 9 AM-12 PM and 1-3 PM, and Thursday 9 AM-12 PM.
Towns near Union
Neighbors of Union in Tolland County and nearby. All Tolland County towns.
Sources
- Mill rates: Connecticut Office of Policy and Management, "Mill Rates for FY 2014–2027," data.ct.gov. Revaluation year: OPM, Revaluation Schedule 2023–2037.
- Home sales: "Real Estate Sales 2001–2024 GL," data.ct.gov. Medians use Union sales recorded October 1 to September 30, leaving out sales the town flagged as non-market.
- Union, Connecticut - Wikipedia: en.wikipedia.org
- Town of Union official website: unionconnecticut.org
- Union CT Town Green photo, Wikimedia Commons: commons.wikimedia.org
- Walkability: Walk Score® ratings, Bike Score® and Transit Score® ratings, provided live by Walk Score. Addresses are located with the U.S. Census Bureau geocoder.
- Photo: "UnionCT TownGreen" by Magicpiano, CC BY-SA 4.0, via Wikimedia Commons; resized.
- Checked September 25, 2026.