Niantic, CT Property Tax: There Is No Niantic Mill Rate - It Is East Lyme's, at 28.95 Mills for FY2027

Niantic Is a Village Inside East Lyme, Not a Separate Town

Niantic has no municipal government of its own. It is a census-designated place and unincorporated village within the Town of East Lyme, Connecticut, which was incorporated as its own town in 1839. Anyone searching for a Niantic property tax rate, a Niantic Assessor, or a Niantic Board of Finance will not find one, because those offices do not exist at the village level. The Town of East Lyme is the taxing authority for Niantic, run day to day by a First Selectman - currently Daniel R. Cunningham - alongside East Lyme's Board of Selectmen, Board of Finance, and the town's annual budget-referendum process. When a real estate listing or a neighbor refers to Niantic taxes, what they mean, in every case, is the East Lyme town tax.

This matters for a practical reason beyond terminology: a buyer cannot compare a Niantic rate to a Waterford rate or an Old Lyme rate as if all three were peer towns assessed the same way, because Niantic is not a peer of those towns at all - it is a neighborhood-scale village inside East Lyme. The correct comparison is always East Lyme's town-wide mill rate, which applies uniformly to Niantic and to every other part of East Lyme.

The Current Mill Rate: 28.95 Mills for FY2027, Up From 27.01

East Lyme's confirmed current mill rate is 28.95 mills, set for fiscal year 2027, which began July 1, 2026. That is up from FY2026's rate of 27.01 mills - a 0.94-mill increase. The increase was approved by a 5-0 vote of East Lyme's Board of Finance at a special meeting held June 11, 2026, according to reporting published June 22, 2026 by Patch, in its coverage of the Lyme-area towns. One mill equals $1 of tax for every $1,000 of assessed value, and Connecticut assesses property at a fraction of market value set by the town's own revaluation cycle, so this rate should be applied to a property's assessed value - available from the East Lyme Assessor's office - not to its market price, to estimate an annual bill.

Older figures still circulating for this town - specifically a CERC (Connecticut Economic Resource Center) town profile citing a 15.91 actual mill rate and a 28.51 equalized mill rate - are not current. Those numbers date to a CERC profile keyed to fiscal year 2021-22, reflect a prior revaluation cycle's assessment basis, and should not be used, quoted, or averaged against the 28.95-mill FY2027 figure above. The two data sets describe different points in time on different assessment bases and are not comparable to each other.

The Millstone Question: The Plant Is in Waterford, Not East Lyme or Niantic

A common assumption among prospective buyers in this market is that Niantic's or East Lyme's low relative tax burden, or its tax base generally, benefits from the nearby Millstone Nuclear Power Station. That assumption is incorrect, and it is worth stating plainly: Millstone Nuclear Power Station is physically located in the Town of Waterford, Connecticut, on Rope Ferry Road and Millstone Point Road - a separate town, with its own separate town government and its own separate grand list. It is not located in East Lyme, and it is not located in Niantic. No evidence was found of any Millstone property-tax revenue, payment-in-lieu-of-taxes (PILOT) arrangement, or grand-list contribution flowing from the plant to East Lyme's town budget. East Lyme's 28.95-mill rate is built entirely from East Lyme's own residential, commercial, and other property assessments, the same as any other Connecticut town without a major industrial taxpayer inside its own borders.

Separate from municipal taxation, and worth distinguishing clearly, is a 2013 dispute over a Connecticut state-level tax on electricity generation, which reportedly cost Millstone's operator roughly $42 million annually at the time. That was a state tax dispute between the plant's operator and the State of Connecticut - it was not municipal revenue paid to any town, and it never flowed to East Lyme or Niantic as local tax income. Buyers should not read that figure, or any other Millstone-related tax story, as evidence of a town-level tax benefit here.

The one genuine, non-tax connection between the plant and this town is emergency planning: East Lyme, and therefore Niantic, sits inside Millstone's federally mandated 10-mile Emergency Planning Zone (EPZ), the plume exposure pathway zone required by the Nuclear Regulatory Commission for any community near an operating nuclear plant. That is standard infrastructure planning for the region, not a fiscal arrangement, and it should not be confused with any tax revenue or tax benefit - because, per the research behind this page, there is none.

The FY2027 Budget: $4.56 Million in Capital Bonding and PFAS Well-Water Treatment Design

Alongside the mill rate increase, the same June 2026 reporting described $4.56 million in capital bonding approved for East Lyme, split roughly between $3.97 million in general town capital projects and $587,000 in Board of Education capital spending for HVAC and technology work.

The FY2027 budget also includes $750,000 for the design phase of activated-carbon filtration facilities addressing PFAS contamination at three town wells - identified as wells 4A, 1A, and 6. As of this reporting, only design funding has been approved; construction funding for the actual filtration facilities has not yet been secured and is expected to be sought in a future budget cycle. This is a genuine, currently active piece of town infrastructure work, and a buyer relying on municipal water in the affected service area may want to ask the East Lyme Water and Sewer Commission directly about the wells' current status and the treatment project's timeline, rather than assuming the design funding alone means construction is imminent.

On the Town's Total Grand List: One Figure to Set Aside

A CERC town profile for East Lyme cites a total grand list figure of $86.7 million. That number looks implausibly low for a shoreline Connecticut town of East Lyme's size and property base, and it is very likely a data-extraction or formatting artifact in that particular profile rather than an accurate total. This page does not repeat that figure as East Lyme's actual grand list total, and no confirmed current 2026 grand-list total is stated here at all. Anyone who needs the town's actual total assessed grand list should request it directly from the East Lyme Assessor's office.

Where This Page Stops, and Who to Call Instead

This page states East Lyme's confirmed FY2027 mill rate of 28.95 (up from FY2026's 27.01), the June 11, 2026 Board of Finance vote, the $4.56 million in capital bonding, and the $750,000 in PFAS well-treatment design funding, all per June 2026 reporting. It does not state, and does not invent, a separate Niantic mill rate (none exists), any Millstone-related tax revenue to East Lyme (none was found), a current confirmed 2026 total grand-list figure for East Lyme, or specific per-neighborhood assessment figures within Niantic. None of those were confirmed in the research behind this page, and the last of them - a separate Niantic mill rate - does not exist as a matter of governance, not merely as a matter of unconfirmed data.

Anyone who needs a specific property's assessed value, an estimated tax bill, or the town's current total grand list should contact the East Lyme Assessor's office directly. Anyone with questions about the PFAS well-water project should contact the East Lyme Water and Sewer Commission. A licensed tax professional should be consulted before making any purchase, rental, or financial decision based on figures from this page.