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Language Spoken At Home in Groton City
*Base on 2012 Data
| Population 5 years and over | 1,452 | 100% |
| English only | 1,420 | 97.8% |
| Language other than English | 32 | 2.2% |
| Speak English less than very well | 3 | 0.2% |
| Spanish | 0 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
| Other Indo-European languages | 32 | 2.2% |
| Speak English less than very well | 3 | 0.2% |
| 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 City
*Base on 2012 Data
| Total population | 1,555 | 100% |
| American | 54 | 3.5% |
| Arab | 0 | 0.0% |
| Czech | 19 | 1.2% |
| Danish | 35 | 2.3% |
| Dutch | 33 | 2.1% |
| English | 130 | 8.4% |
| French (except Basque) | 15 | 1.0% |
| French Canadian | 35 | 2.3% |
| German | 941 | 60.5% |
| Greek | 9 | 0.6% |
| Hungarian | 0 | 0.0% |
| Irish | 198 | 12.7% |
| Italian | 17 | 1.1% |
| Lithuanian | 0 | 0.0% |
| Norwegian | 300 | 19.3% |
| Polish | 13 | 0.8% |
| Portuguese | 0 | 0.0% |
| Russian | 23 | 1.5% |
| Scotch-Irish | 9 | 0.6% |
| Scottish | 13 | 0.8% |
| Slovak | 0 | 0.0% |
| Subsaharan African | 0 | 0.0% |
| Swedish | 64 | 4.1% |
| Swiss | 2 | 0.1% |
| Ukrainian | 0 | 0.0% |
| Welsh | 3 | 0.2% |
| West Indian (excluding Hispanic origin groups) | 0 | 0.0% |
Households By Type in Groton City
*Base on 2012 Data
| Total households | 588 | 100% |
| Family households (families) | 412 | 70.1% |
| With own children under 18 years | 165 | 28.1% |
| Married-couple family | 354 | 60.2% |
| With own children under 18 years | 135 | 23.0% |
| Male householder, no wife present, family | 34 | 5.8% |
| With own children under 18 years | 8 | 1.4% |
| Female householder, no husband present, family | 24 | 4.1% |
| With own children under 18 years | 22 | 3.7% |
| Nonfamily households | 176 | 29.9% |
| Householder living alone | 172 | 29.3% |
| 65 years and over | 93 | 15.8% |
| Households with one or more people under 18 years | 169 | 28.7% |
| Households with one or more people 65 years and over | 159 | 27.0% |
| Average household size | 3 | 0% |
| Average family size | 3 | 0% |
Relationship in Groton City
*Base on 2012 Data
| Population in households | 1,504 | 100% |
| Householder | 588 | 39.1% |
| Spouse | 355 | 23.6% |
| Child | 477 | 31.7% |
| Other relatives | 51 | 3.4% |
| Nonrelatives | 33 | 2.2% |
| Unmarried partner | 12 | 0.8% |
Marital Status in Groton City
*Base on 2012 Data
| Males 15 years and over | 602 | 100% |
| Never married | 165 | 27.4% |
| Now married, except separated | 391 | 65.0% |
| Separated | 4 | 0.7% |
| Widowed | 11 | 1.8% |
| Divorced | 31 | 5.1% |
| Females 15 years and over | 624 | 100% |
| Never married | 103 | 16.5% |
| Now married, except separated | 366 | 58.7% |
| Separated | 5 | 0.8% |
| Widowed | 95 | 15.2% |
| Divorced | 55 | 8.8% |
Fertility in Groton City
*Base on 2012 Data
| Number of women 15 to 50 years old who had a birth in the past 12 months | 17 | 100% |
| Unmarried women (widowed, divorced, and never married) | 5 | 29.4% |
| Per 1,000 unmarried women | 40 | 0% |
| Per 1,000 women 15 to 50 years old | 49 | 0% |
| Per 1,000 women 15 to 19 years old | 0 | 0% |
| Per 1,000 women 20 to 34 years old | 126 | 0% |
| Per 1,000 women 35 to 50 years old | 26 | 0% |
Grandparents in Groton City
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 7 | 100% |
| Responsible for grandchildren | 7 | 100.0% |
| Less than 1 year | 0 | 0.0% |
| 1 or 2 years | 0 | 0.0% |
| 3 or 4 years | 7 | 100.0% |
| 5 or more years | 0 | 0.0% |
| Number of grandparents responsible for own grandchildren under 18 years | 7 | 100% |
| Who are female | 4 | 57.1% |
| Who are married | 7 | 100.0% |
School Enrollment in Groton City
*Base on 2012 Data
| Population 3 years and over enrolled in school | 404 | 100% |
| Nursery school, preschool | 44 | 10.9% |
| Kindergarten | 19 | 4.7% |
| Elementary school (grades 1-8) | 186 | 46.0% |
| High school (grades 9-12) | 127 | 31.4% |
| College or graduate school | 28 | 6.9% |
Educational Attainment in Groton City
*Base on 2012 Data
| Population 25 years and over | 1,052 | 100% |
| Less than 9th grade | 42 | 4.0% |
| 9th to 12th grade, no diploma | 32 | 3.0% |
| High school graduate (includes equivalency) | 324 | 30.8% |
| Some college, no degree | 253 | 24.0% |
| Associate's degree | 135 | 12.8% |
| Bachelor's degree | 208 | 19.8% |
| Graduate or professional degree | 58 | 5.5% |
| Percent high school graduate or higher | 0 | 93.0% |
| Percent bachelor's degree or higher | 0 | 25.3% |
Veteran Status in Groton City
*Base on 2012 Data
| Civilian population 18 years and over | 1,147 | 100% |
| Civilian veterans | 103 | 9.0% |
Disability Status Of The Civilian Noninstitutionalized Population in Groton City
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 1,504 | 100% |
| With a disability | 128 | 8.5% |
| Under 18 years | 408 | 100% |
| With a disability | 0 | 0.0% |
| 18 to 64 years | 879 | 100% |
| With a disability | 66 | 7.5% |
| 65 years and over | 217 | 100% |
| With a disability | 62 | 28.6% |
Residence 1 Year Ago in Groton City
*Base on 2012 Data
| Population 1 year and over | 1,538 | 100% |
| Same house | 1,380 | 89.7% |
| Different house in the U.S. | 158 | 10.3% |
| Same county | 95 | 6.2% |
| Different county | 63 | 4.1% |
| Same state | 41 | 2.7% |
| Different state | 22 | 1.4% |
| Abroad | 0 | 0.0% |
Place Of Birth in Groton City
*Base on 2012 Data
| Total population | 1,555 | 100% |
| Native | 1,552 | 99.8% |
| Born in United States | 1,552 | 99.8% |
| State of residence | 1,255 | 80.7% |
| Different state | 297 | 19.1% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 0 | 0.0% |
| Foreign born | 3 | 0.2% |
U.S. Citizenship Status in Groton City
*Base on 2012 Data
| Foreign-born population | 3 | 100% |
| Naturalized U.S. citizen | 0 | 0.0% |
| Not a U.S. citizen | 3 | 100.0% |
Year of Entry in Groton City
*Base on 2012 Data
| Population born outside the United States | 3 | 100% |
| Native | 0 | 0% |
| Entered 2010 or later | 0 | 0% |
| Entered before 2010 | 0 | 0% |
| Foreign born | 3 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 3 | 100.0% |
World Region Of Birth Of Foreign Born in Groton City
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 3 | 100% |
| Europe | 0 | 0.0% |
| Asia | 0 | 0.0% |
| Africa | 0 | 0.0% |
| Oceania | 0 | 0.0% |
| Latin America | 0 | 0.0% |
| Northern America | 3 | 100.0% |