Population density (sq mi)2,99773691
Median age34.340.637.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)42%54%55%
Families w/ Kids under 1846%43%43%
Speak English83%78%79%
Speak Spanish9%12%13%

Key findings

  • The population density in Groton is 307% higher than Connecticut
  • The median age in Groton is 16% lower than Connecticut
  • In Groton 72.25% of the population is White
  • In Groton 11.21% of the population is Black
  • In Groton 6.89% of the population is Asian

Compare Groton, CT Demographics


      Groton population breakdown by race

      American Indian0.05%0.26%0.82%
      Native Hawaiian0.00%0.03%0.18%
      Mixed race4.97%2.98%3.06%
      Other race4.62%4.95%4.75%
      In Groton, 14.5% of people are of Hispanic or Latino origin.
      Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

      Household income distribution

      Place of birth by citizenship

      Groton age breakdown

      Marital status

      Age of children in married couples

      Source: The Groton, CT demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).