Homes for Sale in Stonington

Cross the Mystic River bridge from Groton into Stonington and your property tax rate drops about seven mills — roughly $2,900 a year on a $600,000 house. Same village, same street grid, same "Mystic, CT 06355" mailing address. Stonington also has a median household income of $114,797 and the last commercial fishing fleet in Connecticut. Single-family homes sold at a median of $612,500 in 2025.

I sell across New London County, and this is the town where the details do the most damage if you don't know them going in. So here's what I'd want to know.

Stonington Home Prices and Market Data

Full calendar year, single-family detached. Source: SmartMLS Local Market Update, December 2025.

Read those last two rows twice. Stonington sells below asking, at 98.7%, and takes 36 days to get there. Groton next door sells at 100.4% in 21 days, and Ledyard at 103.4% in 15.

Nothing's wrong with this market. That's just what a high-priced, second-home-flavored shoreline town looks like. Every house is its own thing, the comps are thin, sellers list optimistically & buyers push back. There's more room to negotiate here than almost anywhere in New London County — only Lyme at 97.1% and Old Lyme at 98.1% give up more against asking — and that cuts both ways depending on which side of the table you're on.

The Mystic Bridge Is the Most Useful Thing I Can Tell You About This County

Mystic is a village sitting in two towns at once. The Mystic River is the town line. The village grew up as three pieces: Old Mystic upriver, "Lower Mystic" on the Stonington bank, and Portersville on the Groton bank. The Mystic River Bascule Bridge carries Route 1 right through the middle.

Here's what changes when you cross it:

About seven mills, one bridge. On a $600,000 house that's roughly $2,900 every single year.

And here's the part almost nobody catches: the Mystic Fire District is one district covering both towns, but it charges a different rate on each side of the line. Two houses in the same district, on the same street, pay different totals. Both the town rate and the district's own levy are different.

The Stonington town rate above is 18.18 on the October 1, 2024 Grand List. Connecticut's OPM hasn't published FY2026-27 rates and Stonington's website blocks automated access, so I couldn't confirm the current year. Confirm with the Stonington Tax Collector. The comparison and how big it is hold either way.

See my Groton page for the other side of the river.

Stonington Has Eleven Taxing Districts, Including Connecticut's Oldest Borough

Same as Groton: the headline rate is almost never what you actually pay.

These are October 1, 2024 Grand List figures, the most recent published. Confirm current rates and whether they're additive with the Stonington Tax Collector before you lean on them.

The Borough of Stonington

Chartered in 1801, it's the oldest borough in Connecticut. A Board of Warden and Burgesses runs it. They pass ordinances, put together a budget that gets approved at an annual meeting, and here's the part that actually matters to you: they appoint their own Planning and Zoning Commission and their own Zoning Board of Appeals.

What the borough tax pays for: planning and zoning, harbor management jointly with the Town, highway and parks maintenance, fire and emergency management, stormwater management, street light maintenance, trash and recycling coordination, dumpster permits, parking decals for Wayland's Wharf, and property-use permits for borough facilities.

What that means if you're buying: if you own in the borough, you apply to the borough for zoning relief, not the town. In a village of historic houses on small lots, that's not trivia. That's who decides whether your addition gets built.

Borough Hall is at 26 Church Street, 860-535-1298, Monday through Friday 9 to 3. I couldn't find a published borough boundary map or address lookup anywhere. Call Borough Hall or the Stonington Assessor. The practical tell is the tax bill, because a borough property carries a separate borough line on it.

Pawcatuck and the Rhode Island Line

Pawcatuck is Stonington's village on the Pawcatuck River, sitting directly across from Westerly, Rhode Island. The two downtowns work as one district. They're even jointly branded "Downtown Westerly–Pawcatuck" by a Rhode Island chamber of commerce that covers the Connecticut side.

You can stand in downtown Pawcatuck and walk to Rhode Island. So the decision isn't really about distance. It comes down to tax structure, school district and commute.

Pawcatuck's effective rate runs about 19.88 mills (18.18 town plus the 1.70 Pawcatuck Fire District), which is low for Connecticut. Whether it beats the Westerly side depends on Rhode Island's rate and how they assess, and that's exactly the comparison I'll run for you. I'm licensed in Connecticut, Rhode Island and Massachusetts, so I can work either bank of that river.

One thing about the geography: Stonington High School and Stonington Middle School are both in Pawcatuck, out on the Rhode Island border. Nowhere near the Borough. If schools are driving your search, that matters.

The Last Commercial Fishing Fleet in Connecticut

This one's real and you can check it: Stonington runs the last surviving commercial fishing fleet in the state, out of the Town Dock, where boats have been going out for more than 250 years. There's a memorial there recording 41 fleet members lost at sea. They work Block Island Sound, Long Island Sound and Georges Bank.

It's a working waterfront, not a heritage exhibit, and you feel that in the character of the borough and the harbor in a way you just don't at a restored seaport.

Mystic Seaport, Mystic Aquarium and Who Actually Gets to Claim Them

The Town of Stonington claims both Mystic Seaport Museum and Mystic Aquarium, calling them two of the most popular attractions in the state and crediting them with more than a million visitors a year between them. Both sit on the Route 27 corridor on the east bank.

Mystic Seaport Museum covers 19 acres with more than 60 historic buildings, and it's the largest maritime museum in the United States. It's home to the Charles W. Morgan, the only surviving wooden whaling ship, acquired in 1941.

Mystic Aquarium opened in October 1973 and keeps about 10,000 animals, including a one-acre beluga habitat holding 760,000 gallons.

Groton's side of the river has the Submarine Force Museum and the USS Nautilus.

Being honest here: I couldn't confirm parcel by parcel from assessor records which town each one actually sits in. The attribution above is the Town of Stonington's own.

Stonington Schools

That's about 1,680 students across four schools, with the two elementary attendance areas split roughly Mystic-side and Pawcatuck-side. Enrollment figures come from the National Center for Education Statistics, 2024-25.

Don't get these confused:North Stonington is a separate town with its own separate school district. North Stonington Elementary and Wheeler High School aren't Stonington Public Schools. The names trip people up constantly.

Who Actually Lives Here

Stonington's demographics tell you more about this market than any price statistic does.

Nearly two residents over 65 for every one under 18. This is the region's affluent, aging, second-home-flavored shoreline market, and it drives everything. What inventory comes available, the price point, where school enrollment is headed, and the kind of buyer you're bidding against.

The town covers 38.7 square miles of land plus 11.4 square miles of water, so nearly 23% of it is water, with a 2020 Census population of 18,335 and an estimated 18,832 as of July 2025.

Villages and districts: the Borough of Stonington, Pawcatuck, Lords Point, Wequetequock, Masons Island, Quiambaug, Wamphassuc Point, and the eastern portions of Mystic and Old Mystic.

A Few Practical Things Before You Buy

Stonington sits well outside the 20-mile crumbling-concrete foundation radius centered on Stafford Springs. That's a real diligence issue in Tolland and Windham County. It isn't a New London County problem.

Septic and well permits go through the Ledge Light Health District.

Stonington's next revaluation is 2027, later than Groton's and Waterford's, which both revalue on the October 1, 2026 Grand List. So Stonington's assessments stay comparatively stale for another year, and that's part of why its headline mill rate looks so low next to its neighbors.

Shoreline flood risk deserves a real conversation. The governing FEMA map for New London County took effect July 18, 2011, so it's fifteen years old. Under FEMA's current Risk Rating 2.0, flood insurance gets priced property by property instead of by zone, which means the rate on the house next door tells you almost nothing. Get an actual quote by address before you waive the inspection contingency, and ask the seller for any existing elevation certificate.

And if wine is your thing, Stonington Vineyards and Saltwater Farm Vineyard both operate right in town.

Thinking of Selling in Stonington?

98.7% of list at 36 days is the honest baseline here, and pricing is where you win or lose in this town.

Don't price off the town median. At this price point, with 29% of residents over 65 and a real second-home component, houses here are close to one-of-a-kind. The comp set is thin, and it has to be chosen by hand instead of pulled off a radius search.

If you're in the Borough or a fire district, put the combined rate in front of buyers early. A buyer who finds a separate borough tax line late in the deal feels blindsided, even when nobody hid anything.

And if you're on the water, have the elevation certificate and a current insurance quote ready to hand over. Flood cost is now the number one reason a shoreline deal gets renegotiated, and the seller holding the numbers controls that conversation.

If you want a real number on your house, call me and I'll walk the property, pull the actual comps, and tell you honestly what I think it brings.

Nearby Towns

Stonington borders 3 of the other towns I cover, and people looking here almost always look at a couple of them too. Same guide, same numbers, for each one:

• Groton real estate
• Ledyard real estate
• North Stonington real estate

Or see how every town in the county compares side by side in my New London County real estate guide.

Sources and dates. Sale price, closed sales, days on market and percent of list received: SmartMLS Local Market Update, December 2025, single-family detached, full-year 2025 and 2024. Town and district mill rates: Connecticut Office of Policy and Management, October 1, 2024 Grand List. Revaluation schedule: CT OPM Revaluation Schedule 2023-2037. Borough charter, governance and services: Borough of Stonington. Mystic village geography, bridge and CDP data: U.S. Census and municipal sources. Mystic Seaport Museum and Mystic Aquarium attributions: Town of Stonington tourism materials. Commercial fishing fleet: Town of Stonington and regional reporting, July 2021. Pawcatuck–Westerly joint district: Ocean Community Chamber of Commerce. School enrollment: National Center for Education Statistics, 2024-25. Population, income, owner-occupancy, age distribution and education: U.S. Census Bureau QuickFacts and 2020 Census. FEMA map effective date: New London County DFIRM, July 18, 2011, via Connecticut Environmental Conditions Online. Health district: Ledge Light Health District. Crumbling foundations radius: Connecticut Department of Housing.

Last updated August 2026. Tax rates and market data change — ask me for current numbers.