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Language Spoken At Home in Janesville
*Base on 2012 Data
| Population 5 years and over | 1,424 | 100% |
| English only | 1,353 | 95.0% |
| Language other than English | 71 | 5.0% |
| Speak English less than very well | 19 | 1.3% |
| Spanish | 0 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
| Other Indo-European languages | 27 | 1.9% |
| Speak English less than very well | 12 | 0.8% |
| Asian and Pacific Islander languages | 44 | 3.1% |
| Speak English less than very well | 7 | 0.5% |
| Other languages | 0 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
Ancestry in Janesville
*Base on 2012 Data
| Total population | 1,564 | 100% |
| American | 165 | 10.5% |
| Arab | 0 | 0.0% |
| Czech | 0 | 0.0% |
| Danish | 0 | 0.0% |
| Dutch | 0 | 0.0% |
| English | 271 | 17.3% |
| French (except Basque) | 125 | 8.0% |
| French Canadian | 0 | 0.0% |
| German | 468 | 29.9% |
| Greek | 0 | 0.0% |
| Hungarian | 0 | 0.0% |
| Irish | 315 | 20.1% |
| Italian | 134 | 8.6% |
| Lithuanian | 0 | 0.0% |
| Norwegian | 15 | 1.0% |
| Polish | 9 | 0.6% |
| Portuguese | 32 | 2.0% |
| Russian | 12 | 0.8% |
| Scotch-Irish | 0 | 0.0% |
| Scottish | 84 | 5.4% |
| Slovak | 0 | 0.0% |
| Subsaharan African | 0 | 0.0% |
| Swedish | 20 | 1.3% |
| Swiss | 0 | 0.0% |
| Ukrainian | 0 | 0.0% |
| Welsh | 0 | 0.0% |
| West Indian (excluding Hispanic origin groups) | 0 | 0.0% |
Households By Type in Janesville
*Base on 2012 Data
| Total households | 457 | 100% |
| Family households (families) | 429 | 93.9% |
| With own children under 18 years | 177 | 38.7% |
| Married-couple family | 347 | 75.9% |
| With own children under 18 years | 109 | 23.9% |
| Male householder, no wife present, family | 59 | 12.9% |
| With own children under 18 years | 45 | 9.8% |
| Female householder, no husband present, family | 23 | 5.0% |
| With own children under 18 years | 23 | 5.0% |
| Nonfamily households | 28 | 6.1% |
| Householder living alone | 12 | 2.6% |
| 65 years and over | 6 | 1.3% |
| Households with one or more people under 18 years | 192 | 42.0% |
| Households with one or more people 65 years and over | 83 | 18.2% |
| Average household size | 3 | 0% |
| Average family size | 3 | 0% |
Relationship in Janesville
*Base on 2012 Data
| Population in households | 1,564 | 100% |
| Householder | 457 | 29.2% |
| Spouse | 332 | 21.2% |
| Child | 595 | 38.0% |
| Other relatives | 106 | 6.8% |
| Nonrelatives | 74 | 4.7% |
| Unmarried partner | 0 | 0.0% |
Marital Status in Janesville
*Base on 2012 Data
| Males 15 years and over | 650 | 100% |
| Never married | 196 | 30.2% |
| Now married, except separated | 391 | 60.2% |
| Separated | 10 | 1.5% |
| Widowed | 0 | 0.0% |
| Divorced | 53 | 8.2% |
| Females 15 years and over | 549 | 100% |
| Never married | 121 | 22.0% |
| Now married, except separated | 342 | 62.3% |
| Separated | 0 | 0.0% |
| Widowed | 41 | 7.5% |
| Divorced | 45 | 8.2% |
Fertility in Janesville
*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 Janesville
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 30 | 100% |
| Responsible for grandchildren | 0 | 0.0% |
| Less than 1 year | 0 | 0.0% |
| 1 or 2 years | 0 | 0.0% |
| 3 or 4 years | 0 | 0.0% |
| 5 or more years | 0 | 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 Janesville
*Base on 2012 Data
| Population 3 years and over enrolled in school | 426 | 100% |
| Nursery school, preschool | 41 | 9.6% |
| Kindergarten | 16 | 3.8% |
| Elementary school (grades 1-8) | 209 | 49.1% |
| High school (grades 9-12) | 132 | 31.0% |
| College or graduate school | 28 | 6.6% |
Educational Attainment in Janesville
*Base on 2012 Data
| Population 25 years and over | 1,030 | 100% |
| Less than 9th grade | 16 | 1.6% |
| 9th to 12th grade, no diploma | 82 | 8.0% |
| High school graduate (includes equivalency) | 172 | 16.7% |
| Some college, no degree | 373 | 36.2% |
| Associate's degree | 163 | 15.8% |
| Bachelor's degree | 176 | 17.1% |
| Graduate or professional degree | 48 | 4.7% |
| Percent high school graduate or higher | 0 | 90.5% |
| Percent bachelor's degree or higher | 0 | 21.7% |
Veteran Status in Janesville
*Base on 2012 Data
| Civilian population 18 years and over | 1,075 | 100% |
| Civilian veterans | 149 | 13.9% |
Disability Status Of The Civilian Noninstitutionalized Population in Janesville
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 1,564 | 100% |
| With a disability | 155 | 9.9% |
| Under 18 years | 489 | 100% |
| With a disability | 13 | 2.7% |
| 18 to 64 years | 908 | 100% |
| With a disability | 75 | 8.3% |
| 65 years and over | 167 | 100% |
| With a disability | 67 | 40.1% |
Residence 1 Year Ago in Janesville
*Base on 2012 Data
| Population 1 year and over | 1,564 | 100% |
| Same house | 1,368 | 87.5% |
| Different house in the U.S. | 182 | 11.6% |
| Same county | 26 | 1.7% |
| Different county | 156 | 10.0% |
| Same state | 117 | 7.5% |
| Different state | 39 | 2.5% |
| Abroad | 14 | 0.9% |
Place Of Birth in Janesville
*Base on 2012 Data
| Total population | 1,564 | 100% |
| Native | 1,500 | 95.9% |
| Born in United States | 1,500 | 95.9% |
| State of residence | 1,153 | 73.7% |
| Different state | 347 | 22.2% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 0 | 0.0% |
| Foreign born | 64 | 4.1% |
U.S. Citizenship Status in Janesville
*Base on 2012 Data
| Foreign-born population | 64 | 100% |
| Naturalized U.S. citizen | 43 | 67.2% |
| Not a U.S. citizen | 21 | 32.8% |
Year of Entry in Janesville
*Base on 2012 Data
| Population born outside the United States | 64 | 100% |
| Native | 0 | 0% |
| Entered 2010 or later | 0 | 0% |
| Entered before 2010 | 0 | 0% |
| Foreign born | 64 | 100% |
| Entered 2010 or later | 14 | 21.9% |
| Entered before 2010 | 50 | 78.1% |
World Region Of Birth Of Foreign Born in Janesville
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 64 | 100% |
| Europe | 43 | 67.2% |
| Asia | 21 | 32.8% |
| Africa | 0 | 0.0% |
| Oceania | 0 | 0.0% |
| Latin America | 0 | 0.0% |
| Northern America | 0 | 0.0% |