Language Spoken At Home in Rock County
*Base on 2012 Data
| Population 5 years and over | 8,974 | 100% |
| English only | 8,623 | 96.1% |
| Language other than English | 351 | 3.9% |
| Speak English less than very well | 110 | 1.2% |
| Spanish | 192 | 2.1% |
| Speak English less than very well | 80 | 0.9% |
| Other Indo-European languages | 114 | 1.3% |
| Speak English less than very well | 19 | 0.2% |
| Asian and Pacific Islander languages | 43 | 0.5% |
| Speak English less than very well | 11 | 0.1% |
| Other languages | 2 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
Ancestry in Rock County
*Base on 2012 Data
| Total population | 9,620 | 100% |
| American | 268 | 2.8% |
| Arab | 11 | 0.1% |
| Czech | 76 | 0.8% |
| Danish | 142 | 1.5% |
| Dutch | 2,154 | 22.4% |
| English | 504 | 5.2% |
| French (except Basque) | 180 | 1.9% |
| French Canadian | 23 | 0.2% |
| German | 4,627 | 48.1% |
| Greek | 0 | 0.0% |
| Hungarian | 1 | 0.0% |
| Irish | 496 | 5.2% |
| Italian | 110 | 1.1% |
| Lithuanian | 1 | 0.0% |
| Norwegian | 1,783 | 18.5% |
| Polish | 173 | 1.8% |
| Portuguese | 0 | 0.0% |
| Russian | 25 | 0.3% |
| Scotch-Irish | 60 | 0.6% |
| Scottish | 78 | 0.8% |
| Slovak | 15 | 0.2% |
| Subsaharan African | 0 | 0.0% |
| Swedish | 414 | 4.3% |
| Swiss | 50 | 0.5% |
| Ukrainian | 6 | 0.1% |
| Welsh | 9 | 0.1% |
| West Indian (excluding Hispanic origin groups) | 0 | 0.0% |
Households By Type in Rock County
*Base on 2012 Data
| Total households | 3,967 | 100% |
| Family households (families) | 2,698 | 68.0% |
| With own children under 18 years | 1,198 | 30.2% |
| Married-couple family | 2,262 | 57.0% |
| With own children under 18 years | 859 | 21.7% |
| Male householder, no wife present, family | 86 | 2.2% |
| With own children under 18 years | 63 | 1.6% |
| Female householder, no husband present, family | 350 | 8.8% |
| With own children under 18 years | 276 | 7.0% |
| Nonfamily households | 1,269 | 32.0% |
| Householder living alone | 1,192 | 30.0% |
| 65 years and over | 538 | 13.6% |
| Households with one or more people under 18 years | 1,220 | 30.8% |
| Households with one or more people 65 years and over | 1,179 | 29.7% |
| Average household size | 2 | 0% |
| Average family size | 3 | 0% |
Relationship in Rock County
*Base on 2012 Data
| Population in households | 9,379 | 100% |
| Householder | 3,967 | 42.3% |
| Spouse | 2,261 | 24.1% |
| Child | 2,841 | 30.3% |
| Other relatives | 90 | 1.0% |
| Nonrelatives | 220 | 2.3% |
| Unmarried partner | 136 | 1.5% |
Marital Status in Rock County
*Base on 2012 Data
| Males 15 years and over | 3,698 | 100% |
| Never married | 969 | 26.2% |
| Now married, except separated | 2,288 | 61.9% |
| Separated | 48 | 1.3% |
| Widowed | 140 | 3.8% |
| Divorced | 253 | 6.8% |
| Females 15 years and over | 3,902 | 100% |
| Never married | 712 | 18.2% |
| Now married, except separated | 2,360 | 60.5% |
| Separated | 49 | 1.3% |
| Widowed | 491 | 12.6% |
| Divorced | 290 | 7.4% |
Fertility in Rock County
*Base on 2012 Data
| Number of women 15 to 50 years old who had a birth in the past 12 months | 156 | 100% |
| Unmarried women (widowed, divorced, and never married) | 45 | 28.8% |
| Per 1,000 unmarried women | 57 | 0% |
| Per 1,000 women 15 to 50 years old | 80 | 0% |
| Per 1,000 women 15 to 19 years old | 30 | 0% |
| Per 1,000 women 20 to 34 years old | 171 | 0% |
| Per 1,000 women 35 to 50 years old | 25 | 0% |
Grandparents in Rock County
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 32 | 100% |
| Responsible for grandchildren | 23 | 71.9% |
| Less than 1 year | 4 | 12.5% |
| 1 or 2 years | 2 | 6.3% |
| 3 or 4 years | 0 | 0.0% |
| 5 or more years | 17 | 53.1% |
| Number of grandparents responsible for own grandchildren under 18 years | 23 | 100% |
| Who are female | 15 | 65.2% |
| Who are married | 13 | 56.5% |
School Enrollment in Rock County
*Base on 2012 Data
| Population 3 years and over enrolled in school | 2,457 | 100% |
| Nursery school, preschool | 278 | 11.3% |
| Kindergarten | 117 | 4.8% |
| Elementary school (grades 1-8) | 1,044 | 42.5% |
| High school (grades 9-12) | 600 | 24.4% |
| College or graduate school | 418 | 17.0% |
Educational Attainment in Rock County
*Base on 2012 Data
| Population 25 years and over | 6,563 | 100% |
| Less than 9th grade | 355 | 5.4% |
| 9th to 12th grade, no diploma | 284 | 4.3% |
| High school graduate (includes equivalency) | 2,589 | 39.4% |
| Some college, no degree | 1,458 | 22.2% |
| Associate's degree | 677 | 10.3% |
| Bachelor's degree | 900 | 13.7% |
| Graduate or professional degree | 300 | 4.6% |
| Percent high school graduate or higher | 0 | 90.3% |
| Percent bachelor's degree or higher | 0 | 18.3% |
Veteran Status in Rock County
*Base on 2012 Data
| Civilian population 18 years and over | 7,159 | 100% |
| Civilian veterans | 936 | 13.1% |
Disability Status Of The Civilian Noninstitutionalized Population in Rock County
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 9,402 | 100% |
| With a disability | 1,028 | 10.9% |
| Under 18 years | 2,424 | 100% |
| With a disability | 98 | 4.0% |
| 18 to 64 years | 5,301 | 100% |
| With a disability | 445 | 8.4% |
| 65 years and over | 1,677 | 100% |
| With a disability | 485 | 28.9% |
Residence 1 Year Ago in Rock County
*Base on 2012 Data
| Population 1 year and over | 9,487 | 100% |
| Same house | 8,542 | 90.0% |
| Different house in the U.S. | 913 | 9.6% |
| Same county | 501 | 5.3% |
| Different county | 412 | 4.3% |
| Same state | 133 | 1.4% |
| Different state | 279 | 2.9% |
| Abroad | 32 | 0.3% |
Place Of Birth in Rock County
*Base on 2012 Data
| Total population | 9,620 | 100% |
| Native | 9,470 | 98.4% |
| Born in United States | 9,441 | 98.1% |
| State of residence | 5,290 | 55.0% |
| Different state | 4,151 | 43.1% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 29 | 0.3% |
| Foreign born | 150 | 1.6% |
U.S. Citizenship Status in Rock County
*Base on 2012 Data
| Foreign-born population | 150 | 100% |
| Naturalized U.S. citizen | 42 | 28.0% |
| Not a U.S. citizen | 108 | 72.0% |
Year of Entry in Rock County
*Base on 2012 Data
| Population born outside the United States | 179 | 100% |
| Native | 29 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 29 | 100.0% |
| Foreign born | 150 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 150 | 100.0% |
World Region Of Birth Of Foreign Born in Rock County
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 150 | 100% |
| Europe | 19 | 12.7% |
| Asia | 57 | 38.0% |
| Africa | 0 | 0.0% |
| Oceania | 0 | 0.0% |
| Latin America | 65 | 43.3% |
| Northern America | 9 | 6.0% |