Coastal Insurance in Stonington Borough: Reading a Peninsula's Risk Honestly
Stonington Borough is a genuinely small, separately governed historic borough of about 976 residents (2020 Census) sitting on just 0.7 square miles inside the much larger Town of Stonington, Connecticut (roughly 18,335 residents, 50.0 square miles). That size figure is not a footnote for insurance purposes - it is the reason insurance deserves real attention here. Roughly half of that 0.7 square miles is water: the Borough occupies a peninsula jutting into Fishers Island Sound and Little Narragansett Bay, with Stonington Harbor on its inner side. This page walks through what that geography actually means for flood exposure, what regional storm history is and is not directly relevant to the Borough, how the Borough's own separate zoning layer factors into floodplain compliance, and where to go for real numbers. Nothing here is insurance, legal, or financial advice - confirm flood-zone status with FEMA and get an actual quote from a Connecticut-licensed insurance agent before you rely on anything below.
The Geography: A Half-Water Peninsula, Not a Generic Coastal Town
Start with the basic shape of the place, because it drives everything else on this page. Stonington Borough covers just 0.7 square miles total, and roughly half of that is water. What is left is a narrow peninsula extending into Fishers Island Sound and Little Narragansett Bay, with Stonington Harbor tucked along its inner, more sheltered side. That is a materially different exposure profile than an inland neighborhood a few miles up the Town of Stonington's coastline - a small peninsula surrounded on multiple sides by open sound and bay water is about as direct a case for taking coastal-flood insurance seriously as this site covers.
It is worth being precise about scale here too: the Borough is its own distinct, much smaller entity than the Town of Stonington that contains it. The Town overall runs 50.0 square miles with about 18,335 residents; the Borough is a 0.7-square-mile enclave of under 1,000 people within it. Insurance and flood-zone facts that apply to the wider Town do not automatically describe the Borough's peninsula-tip exposure, and this page sticks to what is specific to the Borough itself rather than borrowing town-wide figures and presenting them as Borough-specific.
Regional Storm History: The 1938 Hurricane Hit Nearby, Not Here
The single most dramatic storm story associated with this stretch of coastline is the 1938 Great New England Hurricane, which produced a peak storm surge estimated around 50 feet according to a Patch retrospective, striking what is often described as "the Connecticut-Rhode Island border in the Stonington-Watch Hill area." The devastation most often cited from that storm - roughly 40 houses obliterated on Fort Road at Napatree Point, a barrier peninsula where nobody has been permitted to rebuild since - happened in Watch Hill, Rhode Island, across the state line. It is not a Stonington Borough, Connecticut event, and no Borough-specific 1938 damage figure exists in the research behind this page.
That distinction matters, and it is worth stating plainly rather than letting a dramatic nearby story get quietly attached to this Borough. What the 1938 storm does tell you, fairly, is regional: it demonstrates that peninsulas and barrier landforms in this exact corner of Long Island Sound and Fishers Island Sound have historically taken direct, severe hits from major hurricanes. Stonington Borough's own peninsula geography sits in that same general exposure zone, even though the Napatree Point destruction itself happened one town and one state over.
The Borough-Specific Data Point: Hurricane Irene Preparation, 2011
For a storm event that actually happened in Stonington Borough itself, the most concrete account available is Hurricane Irene, which made landfall on August 27, 2011. Per Patch reporting, the Borough saw plywood nailed over windows, sandbags placed in doorways, a mandatory evacuation ordered by 6pm ahead of landfall, roughly 21 houses boarded up between the Wednesday and the Saturday before the storm, and nearly 40 boats hauled out of the water for protection. State Senator Andrew Maynard commended the level of preparation the Borough showed.
Be clear about what that account is and is not: it is preparation reporting - what residents and officials did to get ready - not a record of post-storm damage or dollar losses. No damage or repair-cost figures for the Borough from Irene were found in this research, and none should be assumed. Treat this as the best available Borough-specific evidence that residents and officials here treat storm threats seriously enough to evacuate, board up, and haul boats on relatively short notice - a useful signal about local risk culture, not a damage estimate.
Sandy, Gloria, and the Gaps: What Was Not Found
To be equally direct about what is missing: no Stonington Borough-specific figures for Hurricane Sandy (2012) or Hurricane Gloria (1985) turned up in this research, despite both being significant storms for the broader Connecticut and Rhode Island shoreline. This page does not estimate or infer Borough damage from either storm, because doing so would mean inventing numbers rather than reporting them.
The same honesty applies to flood-zone designation itself: no Stonington Borough-specific FEMA flood-zone figure (V-zone, A-zone, or otherwise) is stated here, because none was independently confirmed for the Borough's specific parcels. Given the peninsula geography described above, it would be reasonable to expect meaningful flood-zone exposure somewhere in the Borough - but "reasonable to expect" is not the same as a confirmed designation, and this page will not present a guess as a fact.
The Borough's Own Zoning Layer: A Regulatory Wrinkle Worth Knowing
One structural detail that is easy for an outside buyer to miss: Stonington Borough maintains its own Planning & Zoning Commission and its own zoning regulations, separate from the Town of Stonington's. That means floodplain-related building requirements - the kind of thing that affects both compliance and insurance premiums, such as elevation requirements or rebuilding rules after storm damage - could be administered at either the Borough level or the Town level, depending on the specific rule in question.
Practically, that means a buyer should not assume that whatever floodplain rule applies to the wider Town of Stonington automatically applies the same way inside the Borough, or vice versa. The Borough's own offices - currently Warden Michael Schefers and Clerk-Treasurer/Assessor Lisa Coleman - are the right place to confirm which regulations govern a specific Borough parcel before you assume anything about compliance costs or requirements.
What Home Values Do (and Do Not) Tell You About Insurance Here
Two home-value figures exist for this general market, and neither should be treated as a Borough-specific number. Zillow, as of April 30, 2026, reported an average home value of $610,618 for "Stonington, CT" (up 6.7% year over year) - but that figure likely reflects the wider town or postal area, not a confirmed Borough-specific figure. Separately, CCM Hub has cited a $450,100 figure, but that is 2023-vintage and town-wide. This page does not reconcile those two numbers into one and does not use either as a Borough-specific current sale price - they are included only as hedged, dated context, not as a number to budget an insurance premium against.
The reason this matters for insurance specifically: flood and windstorm premiums are driven by the specific parcel's flood-zone designation, elevation, distance from the water, and structure characteristics - not by a town-wide average home value. A higher or lower average home price tells you nothing reliable about what a specific Borough property's insurance will cost.
What This Page Cannot Tell You - Confirm Before You Buy
To restate the limits plainly: this page does not state a Borough-specific FEMA flood-zone designation, because none was confirmed. It does not state Borough-specific damage or dollar figures for the 1938 hurricane, Sandy, or Gloria, because none were found. And it does not state any current insurance premium figures, because pricing an actual policy was outside the scope of this research.
What you should do instead: look up the specific parcel's flood zone directly through FEMA's Map Service Center (msc.fema.gov), get an actual quote from a Connecticut-licensed insurance agent who can price flood and windstorm coverage for that specific address, and confirm with the Borough's own Warden and Clerk-Treasurer/Assessor offices which zoning and floodplain rules - Borough or Town - apply to that parcel. This page is meant to help you ask the right questions with the right geography and history in mind; it is not a substitute for a parcel-specific flood determination or a licensed agent's quote.
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Get a Free Agent Referral →Independent research. No ads. No sponsored listings. Data sourced from 2020 U.S. Census figures for Stonington Borough (976 residents, 0.7 sq mi) and the Town of Stonington (18,335 residents, 50.0 sq mi); geographic description of the Borough as a peninsula into Fishers Island Sound and Little Narragansett Bay with Stonington Harbor on its inner side; a Patch retrospective describing the 1938 Great New England Hurricane's roughly 50-foot peak storm surge and the destruction of about 40 houses on Fort Road at Napatree Point in Watch Hill, Rhode Island (explicitly not Stonington Borough, Connecticut); Patch reporting on Hurricane Irene (August 27, 2011) describing plywood-boarded windows, sandbags, a mandatory evacuation ordered by 6pm, roughly 21 houses boarded up in the days before landfall, and nearly 40 boats hauled from the water, with State Senator Andrew Maynard's commendation of the preparation; confirmation that the Borough maintains its own Planning & Zoning Commission separate from the Town of Stonington's, with current Borough officials Warden Michael Schefers and Clerk-Treasurer/Assessor Lisa Coleman; and home-value figures from Zillow (April 30, 2026, $610,618 average for "Stonington, CT," +6.7% year over year) and CCM Hub (2023, $450,100), both flagged as likely town-wide rather than confirmed Borough-specific figures. No Stonington Borough-specific FEMA flood-zone designation, no Borough-specific 1938/Sandy/Gloria damage or dollar figures, and no current insurance premium figures were found or are stated here. Confirm parcel-specific flood-zone status directly with FEMA's Map Service Center (msc.fema.gov), get an actual insurance quote from a Connecticut-licensed agent, and confirm applicable zoning and floodplain rules directly with Stonington Borough's own Warden and Clerk-Treasurer/Assessor offices before making any purchase, budgeting, or insurance decision. Nothing on this page is insurance, legal, or financial advice.