Groton, Connecticut.
Typical home $444,923 (+6.2% in a year), asking rent $2,219 (+9.9%). Norwich-New London, CT metro.
to buy the typical home at today's mortgage rate — +$1,419 (+155%) since Jan 2020.
- 1 year
- Up $26,059 +6%
- $418,864$444,923 since Sep 2025
- 5 years
- Up $129,587 +41%
- $315,336$444,923 since Sep 2021
Monthly payment to buy the typical home
Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.
- Groton$2,335
- Connecticut$2,348
- United States$1,922
At the last five years' pace, a typical home here doubles in price every 10 years.
Typical home values in Groton, CT rose 6.2% over the past year — faster than the nation's +1.2%.
Asking rents in Groton, CT rose 9.9% over the past year — faster than the nation's +2.7%.
Owning the typical home in Groton runs $1,293/mo more than renting one. The gap peaked at $1,342 in Jan 2025.
That is $3,512 a month against $2,219 rent: a $2,335 mortgage payment, plus $700 property tax and $476 insurance & upkeep.
Owning vs renting — Groton
The owning line is the typical home's monthly payment at that month's rate, plus property tax and insurance & upkeep; the renting line is the typical asking rent; the grey line is the mortgage payment on its own. Same homes, same months, both ways of paying for a roof.
- Owning all in$3,512
- Renting$2,219
- Mortgage only$2,335
Property tax · $700/mo 1.89% of value a year — the ACS 2017-2021 median bill over the median home value for New London County, CT
Insurance & upkeep · $476/mo insurance, maintenance and repairs together, from the BLS Consumer Expenditure Survey — the national figure for mortgaged homeowners, scaled to this market's home value. BLS publishes the three bundled and they cannot be split.
Both are priced off the same month's home value, so they rise with the market. Neither is a quote — a specific home's bill depends on its assessment, its age and its insurer.
Living in Groton, Connecticut
Groton is a city of 9,387 people in . Half its households earn more than $79,577 a year and half less; 19% of its people live below the poverty line. 45% of its homes are lived in by their owners and 55% are rented. The most residents work in schools and health care, then manufacturing.
Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.
What it’s like
The place. Groton is a small city on the Connecticut shore, set along the Thames River. Residents are around the middle of the age range, and more of them rent their homes than own them. Incomes are modest and a good share of households live below the poverty line, while typical home values and rents run high, so housing takes a large bite out of many budgets. Winters are cold and the summers are warm, with rain and melted snow spread through the year.
Work. Residents work mostly in schools, hospitals and social care, with many others in manufacturing, restaurants and hotels, and professional and business services. The submarine builder General Dynamics is the largest workplace in town, and the Avery Point campus of the University of Connecticut is another of the big employers. Commutes are short, and few people work from home.
Things to do. The Thames River runs along the town and shapes much of its character. Fort Griswold is a museum and historic site right in town, and Bluff Point State Park is a protected area of shoreline just as close. A short drive away, Mystic Seaport is a museum devoted to the region's seafaring past.
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- 4,654households
- 39%of adults have a degree
- 19%below the poverty line
- 18 mintypical commute
- 5%work from home
What residents work in
Employed residents by industry, from the Census survey.
Weather through the year
Coldest in January, with highs near 38° and lows near 23°; warmest in July, with highs near 80° and lows near 65°. About 39 inches of rain and melted snow a year.
Average daily high and low, 1991–2020, at the Groton New London Airport weather station, under a mile away (NOAA).
Largest workplaces in Groton
- General DynamicsSubmarine building16,009
- University of Connecticut- Avery Point CampusAcademies, college or university312
- Seabird EnterprisesWork experience centers164
- Thames River Magnet SchoolElementary and secondary schools124
- Groton Parks & RecreationRecreational camps without accommodations50
- Marine Science Magnet High SchoolAcademies, elementary or secondary50
- Spicer PlusLiquefied petroleum gas dealers, direct selling46
- IMIA, LLC GrotonShip repair31
Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 9 workplaces with 20 or more staff, 16,814 people in all. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.
Natural hazards
- HurricanesRelatively high
- Inland floodingRelatively moderate
- Ice stormsRelatively moderate
- Winter weatherRelatively moderate
- LightningRelatively moderate
- Coastal floodingRelatively moderate
FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms across its planning region, against the rest of the country; all of them together, relatively moderate. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.
From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on and the Norwich-New London, CT metro.
Groton home values
Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.
- Groton$444,923
- Connecticut$447,319
- United States$366,157
Sellers are cutting prices on about 1 in 5 Groton listings, and the typical home goes pending in 8 days — the market is heating up.
When this market ran hot
Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.
Market heat, inside the city limits
Share of listings with a price cut
The early-warning dial: sellers cut when buyers stop reaching. Rising cuts cool a market months before prices notice.
- Groton19.79%
- United States26.90%
Days to pending
How long the typical listing takes to go under contract.
- Groton8
- United States27
Homes for sale
Active for-sale inventory. More supply hands power to buyers.
- Groton65
New listings per month
Sellers arriving at the market.
- Groton25
Median sale price
What buyers actually paid — closed sales, not asking prices.
- Groton$449,409
- United States$371,407
Sale-to-list ratio
Above 100%, homes sell over asking; below, buyers negotiate wins.
- Groton102.47%
Zip codes with a Groton address
A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Groton — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.
Zip codes in Groton
| Zip activate to sort by Zip | Place activate to sort by Place | Population sorted descending, activate to sort ascending | Rent activate to sort by Rent | Home value activate to sort by Home value |
|---|---|---|---|---|
| 06340 | Groton | 29,863 | $2,197 | $386,427 |
| 06355 | Mystic | 12,173 | $2,688 | $607,524 |