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Language Spoken At Home in Groton
*Base on 2012 Data
| Population 5 years and over | 1,025 | 100% |
| English only | 958 | 93.5% |
| Language other than English | 67 | 6.5% |
| Speak English less than very well | 26 | 2.5% |
| Spanish | 33 | 3.2% |
| Speak English less than very well | 14 | 1.4% |
| Other Indo-European languages | 34 | 3.3% |
| Speak English less than very well | 12 | 1.2% |
| Asian and Pacific Islander languages | 0 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
| Other languages | 0 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
Ancestry in Groton
*Base on 2012 Data
| Total population | 1,025 | 100% |
| American | 19 | 1.9% |
| Arab | 0 | 0.0% |
| Czech | 0 | 0.0% |
| Danish | 0 | 0.0% |
| Dutch | 35 | 3.4% |
| English | 295 | 28.8% |
| French (except Basque) | 31 | 3.0% |
| French Canadian | 2 | 0.2% |
| German | 126 | 12.3% |
| Greek | 53 | 5.2% |
| Hungarian | 0 | 0.0% |
| Irish | 314 | 30.6% |
| Italian | 76 | 7.4% |
| Lithuanian | 0 | 0.0% |
| Norwegian | 0 | 0.0% |
| Polish | 42 | 4.1% |
| Portuguese | 13 | 1.3% |
| Russian | 3 | 0.3% |
| Scotch-Irish | 18 | 1.8% |
| Scottish | 21 | 2.0% |
| Slovak | 0 | 0.0% |
| Subsaharan African | 53 | 5.2% |
| Swedish | 34 | 3.3% |
| Swiss | 18 | 1.8% |
| Ukrainian | 0 | 0.0% |
| Welsh | 0 | 0.0% |
| West Indian (excluding Hispanic origin groups) | 0 | 0.0% |
Households By Type in Groton
*Base on 2012 Data
| Total households | 482 | 100% |
| Family households (families) | 300 | 62.2% |
| With own children under 18 years | 133 | 27.6% |
| Married-couple family | 208 | 43.2% |
| With own children under 18 years | 86 | 17.8% |
| Male householder, no wife present, family | 0 | 0.0% |
| With own children under 18 years | 0 | 0.0% |
| Female householder, no husband present, family | 92 | 19.1% |
| With own children under 18 years | 47 | 9.8% |
| Nonfamily households | 182 | 37.8% |
| Householder living alone | 182 | 37.8% |
| 65 years and over | 133 | 27.6% |
| Households with one or more people under 18 years | 133 | 27.6% |
| Households with one or more people 65 years and over | 208 | 43.2% |
| Average household size | 2 | 0% |
| Average family size | 3 | 0% |
Relationship in Groton
*Base on 2012 Data
| Population in households | 973 | 100% |
| Householder | 482 | 49.5% |
| Spouse | 210 | 21.6% |
| Child | 269 | 27.6% |
| Other relatives | 0 | 0.0% |
| Nonrelatives | 12 | 1.2% |
| Unmarried partner | 12 | 1.2% |
Marital Status in Groton
*Base on 2012 Data
| Males 15 years and over | 463 | 100% |
| Never married | 153 | 33.0% |
| Now married, except separated | 233 | 50.3% |
| Separated | 0 | 0.0% |
| Widowed | 24 | 5.2% |
| Divorced | 53 | 11.4% |
| Females 15 years and over | 434 | 100% |
| Never married | 59 | 13.6% |
| Now married, except separated | 208 | 47.9% |
| Separated | 0 | 0.0% |
| Widowed | 63 | 14.5% |
| Divorced | 104 | 24.0% |
Fertility in Groton
*Base on 2012 Data
| Number of women 15 to 50 years old who had a birth in the past 12 months | 0 | 0% |
| Unmarried women (widowed, divorced, and never married) | 0 | 0% |
| Per 1,000 unmarried women | 0 | 0% |
| Per 1,000 women 15 to 50 years old | 0 | 0% |
| Per 1,000 women 15 to 19 years old | 0 | 0% |
| Per 1,000 women 20 to 34 years old | 0 | 0% |
| Per 1,000 women 35 to 50 years old | 0 | 0% |
Grandparents in Groton
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 0 | 0% |
| Responsible for grandchildren | 0 | 0% |
| Less than 1 year | 0 | 0% |
| 1 or 2 years | 0 | 0% |
| 3 or 4 years | 0 | 0% |
| 5 or more years | 0 | 0% |
| Number of grandparents responsible for own grandchildren under 18 years | 0 | 0% |
| Who are female | 0 | 0% |
| Who are married | 0 | 0% |
School Enrollment in Groton
*Base on 2012 Data
| Population 3 years and over enrolled in school | 357 | 100% |
| Nursery school, preschool | 0 | 0.0% |
| Kindergarten | 25 | 7.0% |
| Elementary school (grades 1-8) | 103 | 28.9% |
| High school (grades 9-12) | 100 | 28.0% |
| College or graduate school | 129 | 36.1% |
Educational Attainment in Groton
*Base on 2012 Data
| Population 25 years and over | 716 | 100% |
| Less than 9th grade | 29 | 4.1% |
| 9th to 12th grade, no diploma | 19 | 2.7% |
| High school graduate (includes equivalency) | 79 | 11.0% |
| Some college, no degree | 74 | 10.3% |
| Associate's degree | 28 | 3.9% |
| Bachelor's degree | 262 | 36.6% |
| Graduate or professional degree | 225 | 31.4% |
| Percent high school graduate or higher | 0 | 93.3% |
| Percent bachelor's degree or higher | 0 | 68.0% |
Veteran Status in Groton
*Base on 2012 Data
| Civilian population 18 years and over | 811 | 100% |
| Civilian veterans | 156 | 19.2% |
Disability Status Of The Civilian Noninstitutionalized Population in Groton
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 987 | 100% |
| With a disability | 162 | 16.4% |
| Under 18 years | 201 | 100% |
| With a disability | 0 | 0.0% |
| 18 to 64 years | 537 | 100% |
| With a disability | 26 | 4.8% |
| 65 years and over | 249 | 100% |
| With a disability | 136 | 54.6% |
Residence 1 Year Ago in Groton
*Base on 2012 Data
| Population 1 year and over | 1,025 | 100% |
| Same house | 1,009 | 98.4% |
| Different house in the U.S. | 4 | 0.4% |
| Same county | 3 | 0.3% |
| Different county | 1 | 0.1% |
| Same state | 0 | 0.0% |
| Different state | 1 | 0.1% |
| Abroad | 12 | 1.2% |
Place Of Birth in Groton
*Base on 2012 Data
| Total population | 1,025 | 100% |
| Native | 984 | 96.0% |
| Born in United States | 964 | 94.0% |
| State of residence | 556 | 54.2% |
| Different state | 408 | 39.8% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 20 | 2.0% |
| Foreign born | 41 | 4.0% |
U.S. Citizenship Status in Groton
*Base on 2012 Data
| Foreign-born population | 41 | 100% |
| Naturalized U.S. citizen | 41 | 100.0% |
| Not a U.S. citizen | 0 | 0.0% |
Year of Entry in Groton
*Base on 2012 Data
| Population born outside the United States | 61 | 100% |
| Native | 20 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 20 | 100.0% |
| Foreign born | 41 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 41 | 100.0% |
World Region Of Birth Of Foreign Born in Groton
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 41 | 100% |
| Europe | 41 | 100.0% |
| Asia | 0 | 0.0% |
| Africa | 0 | 0.0% |
| Oceania | 0 | 0.0% |
| Latin America | 0 | 0.0% |
| Northern America | 0 | 0.0% |