Please note that new Connecticut county and township level geographies are not available within the map.


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What's New & FAQs
 QuickFacts Groton city, Connecticut QuickFacts provides statistics for all states and counties. Also for cities and towns with a ***population of 5,000 or more***.
  -- Select a fact --Population estimates, July 1, 2023, (V2023)Population estimates base, April 1, 2020, (V2023)Population, percent change - April 1, 2020 (estimates base) to July 1, 2023, (V2023)Population, Census, April 1, 2020Population, Census, April 1, 2010Persons under 5 years, percentPersons under 18 years, percentPersons 65 years and over, percentFemale persons, percentWhite alone, percentBlack or African American alone, percent (a)American Indian and Alaska Native alone, percent (a)Asian alone, percent (a)Native Hawaiian and Other Pacific Islander alone, percent (a)Two or More Races, percentHispanic or Latino, percent (b)White alone, not Hispanic or Latino, percentVeterans, 2018-2022Foreign born persons, percent, 2018-2022Housing Units, July 1, 2023, (V2023)Owner-occupied housing unit rate, 2018-2022Median value of owner-occupied housing units, 2018-2022Median selected monthly owner costs -with a mortgage, 2018-2022Median selected monthly owner costs -without a mortgage, 2018-2022Median gross rent, 2018-2022Building Permits, 2023Households, 2018-2022Persons per household, 2018-2022Living in same house 1 year ago, percent of persons age 1 year+, 2018-2022Language other than English spoken at home, percent of persons age 5 years+, 2018-2022Households with a computer, percent, 2018-2022Households with a broadband Internet subscription, percent, 2018-2022High school graduate or higher, percent of persons age 25 years+, 2018-2022Bachelor's degree or higher, percent of persons age 25 years+, 2018-2022With a disability, under age 65 years, percent, 2018-2022Persons without health insurance, under age 65 years, percentIn civilian labor force, total, percent of population age 16 years+, 2018-2022In civilian labor force, female, percent of population age 16 years+, 2018-2022Total accommodation and food services sales, 2017 ($1,000) (c)Total health care and social assistance receipts/revenue, 2017 ($1,000) (c)Total transportation and warehousing receipts/revenue, 2017 ($1,000) (c)Total retail sales, 2017 ($1,000) (c)Total retail sales per capita, 2017 (c)Mean travel time to work (minutes), workers age 16 years+, 2018-2022Median household income (in 2022 dollars), 2018-2022Per capita income in past 12 months (in 2022 dollars), 2018-2022Persons in poverty, percentTotal employer establishments, 2022Total employment, 2022Total annual payroll, 2022 ($1,000)Total employment, percent change, 2021-2022Total nonemployer establishments, 2021All employer firms, Reference year 2017Men-owned employer firms, Reference year 2017Women-owned employer firms, Reference year 2017Minority-owned employer firms, Reference year 2017Nonminority-owned employer firms, Reference year 2017Veteran-owned employer firms, Reference year 2017Nonveteran-owned employer firms, Reference year 2017Population per square mile, 2020Population per square mile, 2010Land area in square miles, 2020Land area in square miles, 2010
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Groton city, ConnecticutPopulation estimates, July 1, 2023, (V2023)
9,302 People
PopulationPopulation estimates, July 1, 2023, (V2023)
9,302Population estimates base, April 1, 2020, (V2023)
9,385Population, percent change - April 1, 2020 (estimates base) to July 1, 2023, (V2023)
-0.9%Population, Census, April 1, 2020
9,387Population, Census, April 1, 2010
10,389Age and SexPersons under 5 years, percent
4.7%Persons under 18 years, percent
17.4%Persons 65 years and over, percent
14.3%Female persons, percent
46.4%Race and Hispanic OriginWhite alone, percent
70.7%Black or African American alone, percent(a)
8.0%American Indian and Alaska Native alone, percent(a)
0.2%Asian alone, percent(a)
5.8%Native Hawaiian and Other Pacific Islander alone, percent(a)
0.0%Two or More Races, percent
11.4%Hispanic or Latino, percent(b)
13.3%White alone, not Hispanic or Latino, percent
63.9%Population CharacteristicsVeterans, 2018-2022
559Foreign born persons, percent, 2018-2022
9.9%HousingHousing Units, July 1, 2023, (V2023)
XOwner-occupied housing unit rate, 2018-2022
45.3%Median value of owner-occupied housing units, 2018-2022
$257,300Median selected monthly owner costs -with a mortgage, 2018-2022
$2,001Median selected monthly owner costs -without a mortgage, 2018-2022
$691Median gross rent, 2018-2022
$1,100Building Permits, 2023
XFamilies & Living ArrangementsHouseholds, 2018-2022
4,690Persons per household, 2018-2022
1.99Living in same house 1 year ago, percent of persons age 1 year+, 2018-2022
80.5%Language other than English spoken at home, percent of persons age 5 years+, 2018-2022
11.4%Computer and Internet UseHouseholds with a computer, percent, 2018-2022
89.4%Households with a broadband Internet subscription, percent, 2018-2022
84.0%EducationHigh school graduate or higher, percent of persons age 25 years+, 2018-2022
90.9%Bachelor's degree or higher, percent of persons age 25 years+, 2018-2022
30.6%HealthWith a disability, under age 65 years, percent, 2018-2022
11.6%Persons without health insurance, under age 65 years, percent
6.6%EconomyIn civilian labor force, total, percent of population age 16 years+, 2018-2022
70.4%In civilian labor force, female, percent of population age 16 years+, 2018-2022
67.8%Total accommodation and food services sales, 2017 ($1,000)(c)
15,069Total health care and social assistance receipts/revenue, 2017 ($1,000)(c)
23,529Total transportation and warehousing receipts/revenue, 2017 ($1,000)(c)
NATotal retail sales, 2017 ($1,000)(c)
50,476Total retail sales per capita, 2017(c)
$5,571TransportationMean travel time to work (minutes), workers age 16 years+, 2018-2022
17.7Income & PovertyMedian household income (in 2022 dollars), 2018-2022
$64,611Per capita income in past 12 months (in 2022 dollars), 2018-2022
$40,702Persons in poverty, percent
16.1% Businesses
BusinessesTotal employer establishments, 2022
XTotal employment, 2022
XTotal annual payroll, 2022 ($1,000)
XTotal employment, percent change, 2021-2022
XTotal nonemployer establishments, 2021
XAll employer firms, Reference year 2017
129Men-owned employer firms, Reference year 2017
72Women-owned employer firms, Reference year 2017
SMinority-owned employer firms, Reference year 2017
SNonminority-owned employer firms, Reference year 2017
73Veteran-owned employer firms, Reference year 2017
SNonveteran-owned employer firms, Reference year 2017
75 Geography
GeographyPopulation per square mile, 2020
3,044.8Population per square mile, 2010
3,368.9Land area in square miles, 2020
3.08Land area in square miles, 2010
3.08FIPS Code
0934180
 About datasets used in this table
 Value Notes  Methodology differences may exist between data sources, and so estimates from different sources are not comparable. Some estimates presented here come from sample data, and thus have sampling errors that may render some apparent differences between geographies statistically 
       indistinguishable. Click the Quick Info   icon to the left of each row in TABLE view to learn about sampling error. The vintage year (e.g., V2023) refers to the final year of the series (2020 thru 2023). Different vintage years of estimates are not comparable. Users should exercise caution when comparing 2018-2022 ACS 5-year estimates to other ACS estimates. For more information, please visit 
    the 2022 5-year ACS Comparison Guidance page.
 Fact Notes (a)Includes persons reporting only one race
(b)Hispanics may be of any race, so also are included in applicable race categories
(c)Economic Census - Puerto Rico data are not comparable to U.S. Economic Census data Value Flags DSuppressed to avoid disclosure of confidential information
FFewer than 25 firms
FNFootnote on this item in place of data
NANot available
SSuppressed; does not meet publication standards
XNot applicable
ZValue greater than zero but less than half unit of measure shown
-Either no or too few sample observations were available to compute an estimate, or a ratio of medians cannot be calculated because one or both of the median estimates falls in the lowest or upper interval of an open ended distribution.
NData for this geographic area cannot be displayed because the number of sample cases is too small. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.


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