First thing to settle before you buy in Griswold: is the house inside the Borough of Jewett City? That's the difference between a mill rate of 27.87 and 31.72. On a median-priced house that's roughly $970 a year, every year, and it's a lien on the property. Meanwhile Griswold's median jumped 10.8% to $360,000 on 102 sales.
I sell all over New London County, and this is the one Griswold detail I end up explaining on almost every showing.
Metric | 2025 | 2024 |
Median sale price, single-family | $360,000 | $325,000 |
Closed sales | 102 | 99 |
Median days on market | 22 | 20 |
Percent of list price received | 100.9% | 102.0% |
Full calendar year, single-family detached. Source: SmartMLS Local Market Update, December 2025.
Price up 10.8%, volume basically flat, pace basically flat, and the premium over asking narrowing from 102.0% to 100.9%. That last one is the interesting bit. Griswold appreciated real money while the bidding calmed down. Houses still clear above list, just barely, but the frantic overbidding has eased off. If you're buying, a well-reasoned offer at or a little over asking is competitive again & you don't have to leap. If you're selling, getting the price right matters more than it did a year ago.
At $360,000, Griswold is still one of the more attainable towns in New London County, and you're within easy reach of Norwich, the Route 395 corridor and the shoreline employers.
Get this one right before you write an offer. It's the thing people find out too late.
Griswold has an incorporated borough sitting inside it — the Borough of Jewett City — and it charges its own tax on top of the town rate.
Where the house is | Total mill rate |
Griswold, outside the borough | 27.87 |
Griswold, inside the Borough of Jewett City | 31.72 (27.87 + 3.85) |
On a $360,000 house assessed at 70% of market value, so an assessment of $252,000, you're looking at about $970 a year. Hold it ten years and that's roughly $9,700, and it gets capitalized into what the house is worth.
Special taxing district taxes in Connecticut aren't a bill you can shrug off. Under Connecticut General Statutes §7-328, district taxes are a lien on the property and can be enforced by foreclosure, the same way the town can. And under §7-325 the district's boundaries must be recorded in the town land records. That's the good news here: a proper title search will find it.
Here's exactly what I tell my buyers to do.
One. Ask the listing agent, in writing, whether the property is inside the borough. In writing.
Two. Have your attorney confirm it against the recorded boundary during the title search. Don't take the listing's word for it.
Three. Get a paid-to-date letter from the borough before closing, same as you would from the town.
Skip this and nobody tells you at closing. The first borough tax bill tells you, and by then your mortgage payment is already set.
The Borough of Jewett City was incorporated in 1895. The scale of it is what surprises people:
Roughly 3,328 people live in about 0.8 square miles. That's close to 29% of Griswold's population living on about 2% of its land.
So Griswold is really two housing markets. The borough is a compact, walkable, historic New England village center — older housing stock, sidewalks, services all close together. The rest of Griswold is rural and semi-rural: bigger lots, wells and septic, more land. Same town, same school system, genuinely different way of living, and a 3.85-mill difference in what you pay for it.
Neither one's better. But you should know which one you're buying, and if you search "Griswold" without understanding this, you're comparing houses that aren't comparable.
This one's genuinely unusual, so I always bring it up.
The Jewett City Department of Public Utilities has operated as a municipal electric utility since 1897, sourcing power through CMEEC, the Connecticut Municipal Electric Energy Cooperative. Municipal electric utilities are rare in Connecticut. Most of the state is served by the big investor-owned utilities.
The department pays into the borough every year specifically to help hold borough tax rates steady. That's a real offset against the 3.85 mills, and it's a structural reason the borough rate has stayed where it is.
If you're buying inside the borough, ask about the utility during diligence. Rate structure and reliability are different from the investor-owned utilities, and it's a live part of what owning there costs you.
Griswold's next revaluation lands on the October 1, 2026 Grand List — this fall — and it hits bills in July 2027.
If you're buying now, here's what that means: the assessment on the house you're looking at is about to be redetermined. Every assessment in town resets to current market value, the grand list grows, and the mill rate falls to compensate. Whether your bill rises or falls depends entirely on whether your assessment moves more or less than the town average.
Griswold's median went from $325,000 to $360,000 and that appreciation hasn't been uniform across town, so expect winners and losers. The published mill rate after the revaluation will look dramatically lower and it'll tell you nothing about your bill. Multiply the new assessment by the new rate. That's the only calculation that counts.
So if you're buying in Griswold in 2026, be conservative projecting your carrying cost forward. Budget for your bill moving.
Griswold runs its own PK–12 district and — unusual for a town this size — has its own high school, which puts it ahead of most of its neighbors. Preston, Bozrah, Franklin, Lisbon, Sprague and Voluntown all send their high schoolers out of town.
It's a K–4 elementary school and a 5–8 middle school, then Griswold High School, and the part that matters is that the entire district sits on a single 70-acre campus.
That's a real practical advantage. Families with kids spread across grade levels deal with one location, one bus system, one set of drop-offs. Siblings stay physically together. Athletics and facilities are shared instead of scattered. If you've got a kindergartner and a tenth grader, that erases a daily logistical problem most towns just live with.
Griswold High School is also one of the destinations neighboring Preston and Voluntown students can choose, which tells you how it's regarded around here.
I'll say this plainly, because it explains a chunk of Griswold's tax picture.
Town | FY2027 grant | Per resident |
Preston | $1,165,290 | ~$243 |
$880,690 | ~$171 | |
Ledyard (hosts Foxwoods) | $1,391,000 | ~$90 |
Montville (hosts Mohegan Sun) | $1,446,162 | ~$79 |
Norwich | $2,360,229 | ~$59 |
Griswold | $55,478 | ~$4.87 |
Griswold gets about $4.87 per resident from the Mashantucket Pequot and Mohegan Fund. Preston, a smaller town that isn't much farther from the casinos, gets about $243. That's a fifty-fold difference per person.
Why you should care: several towns in this county have their mill rates meaningfully subsidized by that money. Griswold doesn't. Its rate is what it is because its own taxpayers fund its own budget, including a full PK–12 district with its own high school. So when you compare Griswold's 27.87 to a neighbor's lower number, that's part of the explanation.
I couldn't verify the statutory formula behind the distribution. The state's explanatory pages weren't reachable. The dollar amounts come from Connecticut's own statutory aid data and those are solid.
Griswold is well outside the crumbling-concrete foundation area. The 20-mile radius that defines Connecticut's crumbling foundation program is centered on the former J.J. Mottes Concrete Company in Stafford Springs, way off to the northwest. It shapes diligence up in Tolland and Windham County. Down here it's a non-issue.
Septic and well permits run through the Uncas Health District, which covers Griswold along with Bozrah, Franklin, Lebanon, Lisbon, Montville, Norwich, Preston, Salem, Sprague and Voluntown. Outside the borough, Griswold is largely well and septic, so pull the Uncas permit history on any house you're serious about. Inside the borough, expect public water and sewer, which is one of the things that higher rate buys you.
Griswold sits along the Quinebaug River with Route 395 running through it, and that's why a town this affordable is still a manageable commute to Norwich, the casinos, Plainfield and the Route 6 corridor.
You had a 10.8% price year on steady volume. That's a good market. But percent of list slipped from 102.0% to 100.9%, which tells me buyers have gotten more disciplined, and that pricing accuracy matters more now than it did last spring.
Three things I'd prepare.
State the borough status right in the listing, whichever way it goes. Outside the borough? That's a selling point worth $970 a year and you should say so. Inside it? Disclose it with the utility context: the borough gives you sidewalks, services, public water and sewer, and a municipal electric department that's been running since 1897. Buyers who hear about a 3.85-mill district from their attorney a week before closing renegotiate. Buyers who read it in the listing just price it in.
Get ahead of the revaluation. Griswold revalues this fall and buyers are going to ask what happens to their taxes. The honest answer — assessments reset, the rate drops to compensate, and your outcome depends on your individual assessment — is the answer that keeps a seller credible.
If you've got school-age kids, mention the single campus. It's a real quality-of-life advantage and almost no listing in Griswold ever says it.
If you want a real number on your house, call me. I'll walk the property, pull the actual comparables for your side of the borough line, and tell you honestly what I think it brings.
And if part of what you're weighing is whether you need me at all — some people genuinely don't, and I'll tell you so — I wrote a straight piece on selling your house without an agent in Connecticut. It covers where doing it yourself actually works, what AI is genuinely good at now, and what an automated price still misses even somewhere that trades as often as Griswold.
Single-family homes sold at a median of $360,000 in 2025, up 10.8% from $325,000 in 2024, across 102 sales. They went at 100.9% of list in a median of 22 days, a slightly narrower premium than 2024's 102.0%, which says buyers are more disciplined. Source: SmartMLS Local Market Update, December 2025.
27.87 mills outside the Borough of Jewett City. Inside the borough, add 3.85 and you're at 31.72 total. On a $360,000 house assessed at 70% of value, the borough costs you about $970 a year. Confirm which side of the boundary a property sits on before you make an offer.
It's an incorporated borough inside the Town of Griswold, established in 1895, levying its own 3.85-mill tax on top of the town rate. About 3,328 people live in roughly 0.8 square miles, some 29% of Griswold's population on about 2% of its land. Borough taxes are a lien on the property under Connecticut General Statutes §7-328 and can be foreclosed; boundaries are recorded in the town land records under §7-325, so a proper title search will find them.
Yes. The Jewett City Department of Public Utilities has operated as a municipal electric utility since 1897, sourcing power through CMEEC. It pays into the borough each year specifically to help stabilize borough tax rates. Municipal electric utilities are rare in Connecticut.
On the October 1, 2026 Grand List — this fall — hitting bills in July 2027. Every assessment resets to current market value and the mill rate falls to compensate. Whether your bill rises or falls depends on whether your assessment moves more or less than the town average, not on the new rate number.
Yes. Griswold runs a full PK–12 district, a K–4 elementary school, a 5–8 middle school and Griswold High School, with the entire district on a single 70-acre campus. Neighboring Preston, Bozrah, Franklin, Lisbon, Sprague and Voluntown all send high schoolers out of town.
Griswold receives $55,478 for FY2027 from the Mashantucket Pequot and Mohegan Fund, about $4.87 per resident, against roughly $243 per resident for Preston. The formula reflects reservation adjacency and historical impact. It means Griswold's mill rate is funded by its own taxpayers to a far greater degree than several of its neighbors' are.
No. Griswold is far outside the 20-mile radius around the former J.J. Mottes Concrete Company in Stafford Springs that defines Connecticut's crumbling foundation program area.
Griswold borders 6 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:
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. Mill rates: Town of Griswold and Borough of Jewett City, FY2026-27. District lien authority and boundary recording: Connecticut General Statutes Sections 7-328 and 7-325. Revaluation year: Connecticut Office of Policy and Management Revaluation Schedule 2023-2037. Borough incorporation, population and area: Borough of Jewett City and U.S. Census Bureau. Jewett City Department of Public Utilities history, CMEEC membership and contribution to the borough: Jewett City Department of Public Utilities. Schools and campus: Griswold Public Schools. Mashantucket Pequot and Mohegan Fund grants by town: Connecticut statutory aid data, FY2027. Health district: Uncas Health District. Crumbling foundations radius: Connecticut Department of Housing.
Last updated August 2026. Tax rates and market data change — ask me for current numbers.
