Language Spoken At Home in Rock Valley City
*Base on 2012 Data
| Population 5 years and over | 3,126 | 100% |
| English only | 3,029 | 96.9% |
| Language other than English | 97 | 3.1% |
| Speak English less than very well | 0 | 0.0% |
| Spanish | 14 | 0.4% |
| Speak English less than very well | 0 | 0.0% |
| Other Indo-European languages | 67 | 2.1% |
| Speak English less than very well | 0 | 0.0% |
| Asian and Pacific Islander languages | 0 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
| Other languages | 16 | 0.5% |
| Speak English less than very well | 0 | 0.0% |
Ancestry in Rock Valley City
*Base on 2012 Data
| Total population | 3,369 | 100% |
| American | 178 | 5.3% |
| Arab | 0 | 0.0% |
| Czech | 24 | 0.7% |
| Danish | 14 | 0.4% |
| Dutch | 2,098 | 62.3% |
| English | 38 | 1.1% |
| French (except Basque) | 46 | 1.4% |
| French Canadian | 0 | 0.0% |
| German | 552 | 16.4% |
| Greek | 0 | 0.0% |
| Hungarian | 0 | 0.0% |
| Irish | 140 | 4.2% |
| Italian | 0 | 0.0% |
| Lithuanian | 0 | 0.0% |
| Norwegian | 157 | 4.7% |
| Polish | 0 | 0.0% |
| Portuguese | 0 | 0.0% |
| Russian | 0 | 0.0% |
| Scotch-Irish | 0 | 0.0% |
| Scottish | 12 | 0.4% |
| Slovak | 0 | 0.0% |
| Subsaharan African | 29 | 0.9% |
| Swedish | 36 | 1.1% |
| 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 Rock Valley City
*Base on 2012 Data
| Total households | 1,252 | 100% |
| Family households (families) | 802 | 64.1% |
| With own children under 18 years | 442 | 35.3% |
| Married-couple family | 628 | 50.2% |
| With own children under 18 years | 351 | 28.0% |
| Male householder, no wife present, family | 30 | 2.4% |
| With own children under 18 years | 15 | 1.2% |
| Female householder, no husband present, family | 144 | 11.5% |
| With own children under 18 years | 76 | 6.1% |
| Nonfamily households | 450 | 35.9% |
| Householder living alone | 407 | 32.5% |
| 65 years and over | 178 | 14.2% |
| Households with one or more people under 18 years | 455 | 36.3% |
| Households with one or more people 65 years and over | 346 | 27.6% |
| Average household size | 3 | 0% |
| Average family size | 3 | 0% |
Relationship in Rock Valley City
*Base on 2012 Data
| Population in households | 3,255 | 100% |
| Householder | 1,252 | 38.5% |
| Spouse | 628 | 19.3% |
| Child | 1,207 | 37.1% |
| Other relatives | 41 | 1.3% |
| Nonrelatives | 127 | 3.9% |
| Unmarried partner | 113 | 3.5% |
Marital Status in Rock Valley City
*Base on 2012 Data
| Males 15 years and over | 1,175 | 100% |
| Never married | 365 | 31.1% |
| Now married, except separated | 658 | 56.0% |
| Separated | 0 | 0.0% |
| Widowed | 0 | 0.0% |
| Divorced | 152 | 12.9% |
| Females 15 years and over | 1,417 | 100% |
| Never married | 377 | 26.6% |
| Now married, except separated | 651 | 45.9% |
| Separated | 55 | 3.9% |
| Widowed | 218 | 15.4% |
| Divorced | 116 | 8.2% |
Fertility in Rock Valley City
*Base on 2012 Data
| Number of women 15 to 50 years old who had a birth in the past 12 months | 30 | 100% |
| Unmarried women (widowed, divorced, and never married) | 0 | 0.0% |
| Per 1,000 unmarried women | 0 | 0% |
| Per 1,000 women 15 to 50 years old | 39 | 0% |
| Per 1,000 women 15 to 19 years old | 0 | 0% |
| Per 1,000 women 20 to 34 years old | 124 | 0% |
| Per 1,000 women 35 to 50 years old | 0 | 0% |
Grandparents in Rock Valley City
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 13 | 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 Rock Valley City
*Base on 2012 Data
| Population 3 years and over enrolled in school | 914 | 100% |
| Nursery school, preschool | 29 | 3.2% |
| Kindergarten | 31 | 3.4% |
| Elementary school (grades 1-8) | 475 | 52.0% |
| High school (grades 9-12) | 279 | 30.5% |
| College or graduate school | 100 | 10.9% |
Educational Attainment in Rock Valley City
*Base on 2012 Data
| Population 25 years and over | 2,077 | 100% |
| Less than 9th grade | 221 | 10.6% |
| 9th to 12th grade, no diploma | 73 | 3.5% |
| High school graduate (includes equivalency) | 717 | 34.5% |
| Some college, no degree | 384 | 18.5% |
| Associate's degree | 312 | 15.0% |
| Bachelor's degree | 271 | 13.0% |
| Graduate or professional degree | 99 | 4.8% |
| Percent high school graduate or higher | 0 | 85.8% |
| Percent bachelor's degree or higher | 0 | 17.8% |
Veteran Status in Rock Valley City
*Base on 2012 Data
| Civilian population 18 years and over | 2,401 | 100% |
| Civilian veterans | 167 | 7.0% |
Disability Status Of The Civilian Noninstitutionalized Population in Rock Valley City
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 3,298 | 100% |
| With a disability | 221 | 6.7% |
| Under 18 years | 968 | 100% |
| With a disability | 0 | 0.0% |
| 18 to 64 years | 1,833 | 100% |
| With a disability | 97 | 5.3% |
| 65 years and over | 497 | 100% |
| With a disability | 124 | 24.9% |
Residence 1 Year Ago in Rock Valley City
*Base on 2012 Data
| Population 1 year and over | 3,340 | 100% |
| Same house | 2,906 | 87.0% |
| Different house in the U.S. | 434 | 13.0% |
| Same county | 379 | 11.3% |
| Different county | 55 | 1.6% |
| Same state | 20 | 0.6% |
| Different state | 35 | 1.0% |
| Abroad | 0 | 0.0% |
Place Of Birth in Rock Valley City
*Base on 2012 Data
| Total population | 3,369 | 100% |
| Native | 3,244 | 96.3% |
| Born in United States | 3,231 | 95.9% |
| State of residence | 2,419 | 71.8% |
| Different state | 812 | 24.1% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 13 | 0.4% |
| Foreign born | 125 | 3.7% |
U.S. Citizenship Status in Rock Valley City
*Base on 2012 Data
| Foreign-born population | 125 | 100% |
| Naturalized U.S. citizen | 78 | 62.4% |
| Not a U.S. citizen | 47 | 37.6% |
Year of Entry in Rock Valley City
*Base on 2012 Data
| Population born outside the United States | 138 | 100% |
| Native | 13 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 13 | 100.0% |
| Foreign born | 125 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 125 | 100.0% |
World Region Of Birth Of Foreign Born in Rock Valley City
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 125 | 100% |
| Europe | 0 | 0.0% |
| Asia | 0 | 0.0% |
| Africa | 16 | 12.8% |
| Oceania | 0 | 0.0% |
| Latin America | 62 | 49.6% |
| Northern America | 47 | 37.6% |