Thompson Hill
815 Riverside Dr, North Grosvenordale, CT 06255
Living in Thompson, Connecticut
Thompson occupies the northeastern corner of Connecticut, bordered by two Massachusetts towns and a Rhode Island town in addition to Putnam and Woodstock. It was settled around 1700 as part of Killingly and incorporated as its own town in 1785, and it's known today for Thompson Speedway, New England's highest-banked track.
Thompson at a glance
- 19.68 millsReal estate tax rate, fiscal year 2026–27
- 30–40 minDrive to Worcester, MA
- WindhamCounty
Thompson's villages and zip codes
Thompson uses several ZIP codes by village: 06277 (Thompson Hill/Thompson), 06255 (North Grosvenordale) and 06262 (Quinebaug).
| Area | Zip code | Where it is |
|---|---|---|
| Thompson Hill | 06277 | The historic town center on a hilltop, including the Thompson Hill Historic District and Town Hall. |
| North Grosvenordale | 06255 | A former mill village along the Quinebaug River, home to Town Hall, the Thompson Public Library and Community Center. |
| Quinebaug | 06262 | A village along the Quinebaug River in the southern part of town. |
Thompson covers about 48.7 square miles and borders Putnam and Woodstock. It was incorporated in 1785.
Things to do in Thompson, CT
Start with Thompson Speedway Motorsports Park and Quaddick State Park, then 2 more below.
Thompson Speedway Motorsports Park
New England's highest-banked track, a 5/8-mile oval plus a restored 1.7-mile road course. It hosts the World Series of Auto Racing each fall, drawing roughly 400 cars across 16 divisions.
56 Airport Rd, Thompson, CT 06277
Plan a visit to Thompson Speedway Motorsports Park (opens in a new tab)Quaddick State Park
A state park on Quaddick Reservoir with swimming, boating and fishing.
Old Furnace Rd, Thompson, CT 06277
Plan a visit to Quaddick State Park (opens in a new tab)Tri-State Marker
A stone marker at the point where Connecticut, Massachusetts and Rhode Island meet, reachable by a short walk.
Near the Thompson/Douglas, MA/Burrillville, RI border
Fort Hill Farms
A working farm known for its sunflower fields, corn maze and farm-based activities.
260 Quaddick Rd, Thompson, CT 06277
Plan a visit to Fort Hill Farms (opens in a new tab)
More worth a visit
- Wilsonville Herb FarmA small herb and plant farm in the Wilsonville village.
Around the calendar
- September/OctoberWorld Series of Auto RacingA multi-division stock car racing weekend at Thompson Speedway held each fall.
A little history
Thompson was settled around 1700 as part of Killingly and was incorporated as its own town in 1785, taking its name from English landholder Sir Robert Thompson.
The Great East Thompson Train Wreck of December 1891 involved four trains and is considered one of the worst rail accidents in U.S. history.
Thompson Speedway, New England's highest-banked track, hosts the World Series of Auto Racing each fall, drawing about 400 cars across 16 divisions.
Parks, trails and outdoors in Thompson
Thompson has more open water and state park land than most of its neighbors, with Quaddick Reservoir and West Thompson Lake as its two largest bodies of water.
- Quaddick State ParkSwimming, boating and fishing on Quaddick Reservoir.More information
- West Thompson LakeA U.S. Army Corps of Engineers flood-control reservoir with trails and a boat launch.
- French River and Five Mile RiverTributaries of the Quinebaug River running through town, used for fishing.
Walkability and getting around Thompson
Thompson's villages, such as North Grosvenordale and Thompson Hill, have small walkable centers, but the town overall is spread across ten villages and a car is needed for most errands.
North Grosvenordale
934 Riverside Dr, North Grosvenordale, CT 06255
Quinebaug
Drive times
- Worcester, MA, about 25 miles30–40 min
- Bradley International Airport, about 62 miles65–75 min
Approximate, without traffic.
By bus or train
The Northeastern Connecticut Transit District runs fixed routes (with deviation on request) plus dial-a-ride service in Thompson. There is no passenger rail station in town.
Thompson property taxes and home prices
Thompson's 2026–27 mill rate is 19.68, which is $19.68 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 $1,378 a year in taxes at 19.68 mills.
What homes in Thompson sell for
| 12 months ending | Single-family | Condo |
|---|---|---|
| Sep 2024 | $361,800114 sales | – |
October to September, state records. Text us for this month's sales.
Thompson's mill rate for 2026–27
19.68mills, fiscal year 2026–27
- Town of Thompson19.68 mills
- Motor vehicles19.68 mills
- Next revaluationOctober 1, 2029
How Thompson's mill rate has changed
| Fiscal year | Town rate |
|---|---|
| 2022–23 | 25.02 |
| 2023–24 | 26.00 |
| 2024–25 | 28.11 |
| 2025–26 | 19.00 |
| 2026–27 | 19.68 |
Thompson's town rate went from 25.02 in 2022–23 to 19.68 in 2026–27. Next revaluation: October 1, 2029.
Look up a Thompson property
- FEMA flood mapWhether a lender will require flood insurance
- Town ClerkLand records, deeds and vital records
Buying a home in Thompson
Things to look into on a Thompson purchase: CHFA limits, the flood map and wells, septic & limited sewer.
CHFA home loans in Thompson
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
Land along the Quinebaug River, French River and Five Mile River, and around Quaddick Reservoir and West Thompson Lake, falls within FEMA-mapped flood zones; check the flood map for river- and lake-adjacent parcels before making an offer. 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 Thompson (opens in a new tab)Confirm water and sewer for the specific address
Public sewer in Thompson is limited to areas served by the Water Pollution Control Authority; most of town relies on private wells and septic. Confirm which utilities serve a specific property before you make an offer.
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 Thompson?
Send us a Thompson address and we'll run the numbers, taxes included.
Moving to Thompson: utilities, trash and town offices
Who to call in Thompson: Eversource for power.
- ElectricEversource
- Natural gasNo natural gas service confirmed in most of town
- WaterMostly private wells, with some public water in village centers
- Sewer or septicThe Thompson Water Pollution Control Authority operates public sewer in a limited area of town; most of Thompson is on private septic
- Trash and recyclingThompson has no townwide curbside pickup; residents use the town transfer station with a permit purchased through the Tax Collector's office.
Thompson Transfer & Recycling Station
815 Riverside Dr, North Grosvenordale, CT (per town brochure) Wednesday, Friday 7:15 a.m.–2:45 p.m.; Thursday 7:15 a.m.–2:45 p.m. (11:15 a.m.–6:45 p.m. May 1–Sept 15); Saturday 7:45 a.m.–3:15 p.m.
Purchased at the Tax Collector's office; proof of registration required
Transfer station details (opens in a new tab)Town offices and contacts
Thompson Town Hall is at 815 Riverside Dr, North Grosvenordale, CT 06255. Hours: Monday–Wednesday 9:00 a.m.–4:00 p.m.; Thursday 9:00 a.m.–6:00 p.m.; Friday 9:00 a.m.–2:00 p.m.. Main line: (860) 923-9440. Each link opens that office's page on the town's website.
- Town HallMain line and town website(860) 923-9440
- Town ClerkLand records and vital records
- Tax CollectorProperty tax bills, payments and transfer station permits
- Public Works / Transfer StationRoad maintenance and the transfer station(860) 923-2680
- Thompson Water Pollution Control AuthorityPublic sewer service in the areas it covers
- Thompson Public LibraryThe town library, combined with the Community Center
- Thompson Public SchoolsThe town's Pre-K–12 school district (Mary R. Fisher Elementary, Thompson Middle School, Tourtellotte Memorial High School)(860) 923-9581
Thompson, CT FAQ: taxes, prices and town services
The short answers. Call or text us for the long ones.
What is the mill rate in Thompson, CT?
Thompson's 2026–27 mill rate is 19.68, which is $19.68 of tax for every $1,000 of assessed value. The motor vehicle rate is 19.68 mills.
How much are property taxes on a $500,000 home in Thompson?
Connecticut assesses homes at 70% of appraised value, so a $500,000 home would be assessed at about $350,000. At 19.68 mills that's about $6,888 a year, or about $574 a month. The actual bill depends on the town assessor's appraisal, not the price you pay.
When is Thompson's next revaluation?
Thompson's next revaluation takes effect October 1, 2029, on the state's schedule. The new assessments first show up on the tax bills due in July 2030.
What county is Thompson in?
Thompson is in Windham County, in Connecticut's Northeastern Connecticut Planning Region.
What ZIP codes cover Thompson?
06277 (Thompson/Thompson Hill), 06255 (North Grosvenordale) and 06262 (Quinebaug).
Is there curbside trash pickup in Thompson?
No. Residents use the town transfer station with a permit from the Tax Collector's office, or hire a private hauler.
Is there public transportation in Thompson?
Yes. The Northeastern Connecticut Transit District runs fixed bus routes with deviation on request, plus dial-a-ride service. There is no passenger rail station in town.
How far is Thompson from a city?
Worcester, Massachusetts is about 25 miles away; Providence, Rhode Island is about 30 miles; Bradley International Airport is roughly 62 miles.
Where is Town Hall and what are its hours?
Town Hall is at 815 Riverside Drive, North Grosvenordale. It's open Monday–Wednesday 9 a.m.–4 p.m., Thursday 9 a.m.–6 p.m., and Friday 9 a.m.–2 p.m.
Towns near Thompson
Neighbors of Thompson in Windham County and nearby. All Windham 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 Thompson sales recorded October 1 to September 30, leaving out sales the town flagged as non-market.
- Thompson, Connecticut — Wikipedia: en.wikipedia.org
- Town of Thompson official website: thompsonct.org
- Transfer Station, Thompson CT: thompsonct.org
- Transfer Station Brochure 2025, Thompson CT: thompsonct.org
- T.W.P.C.A. Sewer Information, Thompson CT: thompsonct.org
- Education, Thompson CT: thompsonct.org
- Thompson School District — Wikipedia: en.wikipedia.org
- Quaddick State Park, CT DEEP: portal.ct.gov
- Thompson Speedway Motorsports Park website: thompsonspeedway.com
- Northeastern Connecticut Transit District — Wikipedia: en.wikipedia.org
- File:Thompson Common facing Church.png, Wikimedia Commons: commons.wikimedia.org
- Connecticut Foundation Solutions Indemnity Company (CFSIC): crumblingfoundations.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: "Thompson Common facing Church" by Ambarenya13, CC BY-SA 4.0, via Wikimedia Commons; resized.
- Checked September 25, 2026.