City profile · Connecticut · Census ACS 2023

Groton, CT

Population, income, housing, safety, climate and schools for Groton - drawn straight from Census ACS, FBI UCR, NOAA, NCES, HUD and FEMA, refreshed on the 2024–2025 release cycle.

9,343
Residents
$69,811
Median income
$278,900
Median home
$1,866
Median rent (state)

Groton - the verdict

Out of every US city with 1,000+ residents, Groton places in the 49th percentile for household income and the 69th percentile for safety. Source: Census ACS + FBI UCR.

49th
percentile, household income
61st
percentile, home value
79th
percentile, median rent
69th
percentile, safety
📝 How we sourced this

Population, income, and housing-cost figures come from the U.S. Census Bureau American Community Survey 5-year estimates (B-series tables). Crime data uses FBI UCR; climate uses NOAA Climate Normals; school counts come from NCES Common Core of Data; permits use the Census Building Permits Survey (BPS). See our methodology page for the full ETL pipeline and OMB / FIPS join keys.

Data Snapshot: Groton, CT

Groton is a small town in Connecticut, home to 9,343 residents per U.S. Census Bureau ACS 2023 estimates. The typical household in Groton brings in $69,811 a year, below the median for U.S. cities on this measure, with a poverty rate of 18.4%. Home values in Groton run a median of $278,900, and the median resident age is 38.6 years. About 34.7% of adults hold a bachelor's degree or higher, while 63.2% of working-age residents are in the labor force.

The Census Building Permit Survey recorded 6 residential units authorized here in 2024 (Building Boom), up 200% from five years earlier. Groton reports a comparatively low crime rate: the FBI's Uniform Crime Reporting program logs 872.6 total incidents per 100,000 residents here, below the national average (agency reporting is voluntary, so this measures reporting activity, not a definitive danger score). The annual average temperature per NOAA climate normals runs 52.3°F with 48.9 inches of precipitation per year and 24.5 inches of snowfall.

Connecticut carries a cost-of-living premium: BEA Regional Price Parities 2024 puts Connecticut at 103.6 on a 100-equals-national-average scale (Above Average). HUD Fair Market Rent for a typical two-bedroom in this state is $1,866 per month. Statewide, average monthly utility bills in Connecticut run around $345, per EIA 2023 residential energy data. Commute times here average 16.9 minutes, with 71.0% driving alone and 4.4% working from home, per Census ACS commuting data. Natural-hazard exposure scores 88.6 out of 100 on FEMA's National Risk Index (Very High).

Population

9,343 residents

Census ACS 2023 - Connecticut

Median Household Income

$69,811 /yr

Poverty 18.4%

Cost of Living Index (state)

103.6 (US=100)

Above Average - BEA RPP 2024, Connecticut average

How does Groton compare to other US cities?

Where Groton sits among all US cities (population 1,000+) on each measure, computed live from Census and FBI data.

Household income 49% higher than other cities
Home value 61% pricier than other cities
Median rent 79% pricier than other cities
Safety 69% safer than other cities

"Safer than" reflects total crime rate from FBI UCR; the others use Census ACS estimates.

Zoom in to just Connecticut and the picture shifts: Groton ranks #12 of 46 Connecticut cities by lowest crime rate, a different read than the national percentile above.

How we calculate these percentiles & ranks

For each metric we count every US city with population 1,000+ and a non-null value, then compute what share of them fall below Groton's value: round(cities-below ÷ total × 100). Safety is inverted (percentile = share of cities with a higher crime rate) so a higher number always means safer. The in-state rank narrows that same crime-rate comparison to only the cities PlainCities tracks in Connecticut, breaking ties alphabetically. See the methodology page for the full source-to-figure lineage.

49thIncome percentile
69thSafety percentile

49th percentile nationally for median household income · 69th percentile for safety (lower crime rate). Source: Census ACS 2023 / FBI UCR 2023.

Groton's profile vs. every US city

Income, affordability, and safety percentile

Groton's percentile rank on 3 favorable-direction measures (income, affordability, safety) vs. every tracked US city -- higher on every axis is more favorable. Not a composite quality score, just the arithmetic mean of the axes shown. 3-axis radar comparing 1 series across Income, Affordability, Safety. IncomeAffordabilitySafety 49 Avg. percentile National median
Groton's percentile rank on 3 favorable-direction measures (income, affordability, safety) vs. every tracked US city -- higher on every axis is more favorable. Not a composite quality score, just the arithmetic mean of the axes shown.

How Groton's home value compares nationally

Median home value vs. every US city (population 1,000+)

$278,900 39th percentile more affordable than 39% of 15,600 US cities

$0–$25,000: 5 US cities (0%). Below this entry. $25,000–$50,000: 54 US cities (0%). Below this entry. $50,000–$75,000: 352 US cities (2%). Below this entry. $75,000–$100,000: 1,086 US cities (7%). Below this entry. $100,000–$125,000: 1,516 US cities (10%). Below this entry. $125,000–$150,000: 1,170 US cities (8%). Below this entry. $150,000–$175,000: 1,278 US cities (8%). Below this entry. $175,000–$200,000: 1,229 US cities (8%). Below this entry. $200,000–$225,000: 1,035 US cities (7%). Below this entry. $225,000–$250,000: 976 US cities (6%). Below this entry. $250,000–$275,000: 754 US cities (5%). Below this entry. $275,000–$300,000: 712 US cities (5%). This entry sits in this band. $300,000–$325,000: 521 US cities (3%). Above this entry. $325,000–$350,000: 526 US cities (3%). Above this entry. $350,000–$375,000: 465 US cities (3%). Above this entry. $375,000–$400,000: 393 US cities (3%). Above this entry. $400,000–$425,000: 317 US cities (2%). Above this entry. $425,000–$450,000: 300 US cities (2%). Above this entry. $450,000–$475,000: 307 US cities (2%). Above this entry. $475,000–$500,000: 250 US cities (2%). Above this entry. $500,000–$525,000: 160 US cities (1%). Above this entry. $525,000–$550,000: 156 US cities (1%). Above this entry. $550,000–$575,000: 172 US cities (1%). Above this entry. $575,000–$600,000: 172 US cities (1%). Above this entry. $600,000–$625,000: 163 US cities (1%). Above this entry. $625,000–$650,000: 167 US cities (1%). Above this entry. $650,000–$675,000: 135 US cities (1%). Above this entry. $675,000–$700,000: 101 US cities (1%). Above this entry. $700,000–$725,000: 95 US cities (1%). Above this entry. $725,000–$750,000: 71 US cities (0%). Above this entry. $750,000–$775,000: 65 US cities (0%). Above this entry. $775,000–$800,000: 70 US cities (0%). Above this entry. $800,000–$825,000: 57 US cities (0%). Above this entry. $825,000–$850,000: 67 US cities (0%). Above this entry. $850,000–$875,000: 60 US cities (0%). Above this entry. $875,000–$900,000: 58 US cities (0%). Above this entry. $900,000–$925,000: 47 US cities (0%). Above this entry. $925,000–$950,000: 37 US cities (0%). Above this entry. $950,000–$975,000: 31 US cities (0%). Above this entry. $975,000–$1,000,000: 470 US cities (3%). Above this entry. $1,000,000–$1,025,000: 0 US cities (0%). Above this entry. Groton $0 $1,025,000 every US city, bucketed by value

Each bar is a $25K-wide band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau ACS 5-Year Estimates · 2023

Income distribution context

Household income distribution - Groton, CT Groton, CT's reported median household income shown against the U.S. national quintile-share pattern (not Groton, CT-specific quintile data). The Lorenz curve traces the national cumulative income share against cumulative population share, perfect equality is the diagonal; observed inequality bows below. $ Household Income Distribution Groton, CT median $69,811/yr, vs. U.S. national quintile pattern QUINTILE SHARE OF AGGREGATE INCOME Lowest 20% 3.4% Second 20% 9.2% Middle 20% 15.1% Fourth 20% 23.2% Top 20% 49.1% LORENZ CURVE cumulative income vs. population 100% 0% 100% pop. 0%
Groton, CT's median household income (Census ACS 5-year estimate) plotted against the U.S. national income-quintile distribution pattern for context; the quintile shares and Lorenz curve are national figures, not computed specifically for Groton, CT. Diagonal = perfect equality.

Key socioeconomic indicators

Bachelor's degree or higher (adults 25+) 34.7%

Census ACS S1501, educational attainment

Poverty rate (households below FPL) 18.4%

Census ACS S1701, poverty status

Labor force participation (adults 16+) 63.2%

Census ACS S2301, share of working-age residents in the labor force

Population
9,343
Median Income
$69,811
Median Home Value
$278,900
Median Age
38.6
Poverty Rate
18.4%
Labor force participation
63.2%
Bachelor's Degree+
34.7%

Safety & Crime

Total Crime Rate
872.6
per 100,000 residents
Violent Crime
193.9
per 100,000 residents
Property Crime
678.7
per 100,000 residents

Reflects incidents reported to the FBI's Uniform Crime Reporting program — agency participation is voluntary and reporting completeness varies by jurisdiction and year, so this reflects reporting activity, not a definitive danger score. Not adjusted for tourism, commuter, or daytime population.

Climate

Avg Temperature
52.3°F
Annual Precipitation
48.9"
Annual Snowfall
24.5"

Schools

Total Schools
7
Public schools in this city

Population Change

Annual U.S. Census Bureau Population Estimates Program (PEP) estimates, 2020–2025

See the fastest-growing cities →
9,000 residents9,500 residents10,000 residents10,500 residents 202020212022202320242025 9,365 residents 10,160 residents ▲ +8.5%
Groton's Census PEP population estimates, 2020–2025.

Housing Supply

Census Bureau Building Permits Survey (BPS) - annual residential permits authorized

📈 Building Boom
Total Permits (2024)
6
housing units authorized
Single-Family
6
detached homes
Multifamily
0
apartments & condos
Supply Intensity
0.6
permits per 1,000 residents

5-Year Permit Trend (2019–2024)

Year Total
2019 2
2020 6
2021 5
2022 4
2023 4
2024 6

Permit volume increased 200% from 2019 to 2024.

Commute Patterns

How workers travel to work, Census ACS 2023

Average Commute Time
16.9 minutes
Drive Alone
71.0%
Carpool
7.2%
Public Transit
2.6%
Walk
13.7%
Work from Home
4.4%
Other
1.1%

Based on 5,144 workers 16 and over.

Monthly Utility Costs

State-average estimates for Connecticut - EIA 2023 residential energy data

Electricity
$175
avg/month
Natural Gas
$110
avg/month
Water & Sewer
$60
avg/month
Total Utilities
$345
estimated/month

Estimates reflect Connecticut state averages. Actual costs vary by home size, usage, and local rates. Source: U.S. Energy Information Administration (EIA) 2023.

Living Costs & Risk

Cost of living is a Connecticut state average from BEA; rent and hazard risk are county-level figures from HUD and FEMA for the county Groton sits in

Cost of Living Index
103.6
Above Average
US average = 100 · BEA RPP 2024
Typical 2-BR Rent
$1,866/mo
HUD Fair Market Rent
County-level FMR estimate
Natural Hazard Risk
88.6 / 100
Very High
FEMA NRI composite score (county)

Similar Cities in Connecticut

Oakville
9,233 people
Riverside
9,216 people
Sandy Hook
9,718 people
Kensington
9,936 people
Long Hill CDP (Greater Bridgeport County)
8,597 people
Conning Towers-Nautilus Park
8,590 people

Cities of a Similar Size Nationwide

Population-matched peers from other states, closest to Groton's 9,343 residents (Census ACS 5-Year 2023).

Lago Vista, TX
9,341 people
Diamondhead, MS
9,338 people
Sheffield, AL
9,334 people
Havre, MT
9,333 people
Indianola, MS
9,360 people
Denham Springs, LA
9,362 people

Cities with a Similar Household Income Nationwide

Median-household-income-matched peers from other states, closest to Groton's $69,811 (Census ACS 5-Year 2023, table B19013).

Colonial Park, PA
$69,804 median income
Garrettsville, OH
$69,821 median income
Suffield, OH
$69,821 median income
Castle Dale, UT
$69,821 median income
Plainview, MN
$69,800 median income
Fairchild AFB, WA
$69,825 median income

Race & Ethnicity Composition

Race and ethnicity - Groton, CT Race categories sum to one hundred percent per Census methodology. Hispanic or Latino is shown separately as an ethnicity overlay; it cuts across all race categories per OMB Directive 15. Race & Ethnicity Composition Groton, CT - Census ACS, OMB race + ethnicity categories RACE, sums to 100% 69.5% 9.1% 10.6% ETHNICITY, Hispanic or Latino (any race) 16.0% White 69.5% Black or African American 9.1% Asian 5.5% American Indian 0.2% Native Hawaiian 0.0% Some other race 5.2% Two or more races 10.6% Per OMB Directive 15: Hispanic/Latino ethnicity is reported separately from the race categories.
Race categories sum to 100%. Hispanic or Latino ethnicity is reported separately and cuts across race per Census/OMB methodology.

City-level race and ethnicity, Census ACS 5-year 2023 (tables B02001, B03001), OMB Directive 15 categories.

How Groton compares to nearby Connecticut cities

Population + median household income, sourced from Census Bureau ACS 5-year B01001 (population) and B19013 (median household income).

City Population Median Household Income
Groton (this city) 9,343 $69,811
Oakville 9,233 $89,330
Riverside 9,216 $250,001
Sandy Hook 9,718 $144,335
Census ACS 5-year FIPS CT FBI UCR NOAA Normals NCES CCD Census BPS 2024 OMB Bulletin 23-01

What do people ask about Groton, CT?

What is the population of Groton, CT? +

The population of Groton, CT stands at 9,343 according to U.S. Census Bureau ACS 2023 estimates.

What is the median household income in Groton, CT? +

Groton households earn a median of $69,811 annually, based on Census ACS 2023 data.

What is the cost of living in Groton? +

BEA does not publish a city-level cost-of-living figure for Groton; the closest available measure is the Connecticut state average, a cost of living index of 103.6 (U.S. average = 100), rated "Above Average" based on BEA Regional Price Parities 2024 data. Costs within Connecticut vary by metro area.

Is Groton, CT safe? +

Groton has a total crime rate of 872.6 per 100,000 residents, which is below the national average. This reflects incidents reported to the FBI UCR program, not a definitive safety score -- agency reporting is voluntary and completeness varies by jurisdiction.

What is the median home value in Groton, CT? +

Homes in Groton carry a median value of $278,900, according to Census ACS 2023 estimates.

What is the climate like in Groton? +

Climate normals put Groton's yearly average temperature at 52.3°F, 48.9 inches of precipitation, and 24.5 inches of snowfall per year. Source: NOAA Climate Normals.

Source: U.S. Census Bureau ACS 5-Year 2023, FBI UCR, NOAA Climate Normals, NCES CCD, Census BPS 2024, Census ACS B08301/B08136, U.S. Energy Information Administration (EIA) 2023, BEA Regional Price Parities 2024, HUD Fair Market Rents 2026, FEMA National Risk Index.

Read our methodology - how this data is sourced, computed, and verified.

Primary sources: Census ACS, FBI UCR, NOAA Climate Normals, NCES.

Citation & verification links Data sourced from the U.S. Census Bureau. See our methodology for details. Retrieved and formatted by PlainCities Editorial

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Every figure on PlainCities is rendered directly from Census ACS source data, no number is typed in by an editor. This page draws directly on Census ACS source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.