Language Spoken At Home in Johnson County
*Base on 2012 Data
| Population 5 years and over | 12,063 | 100% |
| English only | 11,718 | 97.1% |
| Language other than English | 345 | 2.9% |
| Speak English less than very well | 120 | 1.0% |
| Spanish | 205 | 1.7% |
| Speak English less than very well | 82 | 0.7% |
| Other Indo-European languages | 120 | 1.0% |
| Speak English less than very well | 35 | 0.3% |
| Asian and Pacific Islander languages | 16 | 0.1% |
| Speak English less than very well | 3 | 0.0% |
| Other languages | 4 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
Ancestry in Johnson County
*Base on 2012 Data
| Total population | 12,653 | 100% |
| American | 961 | 7.6% |
| Arab | 38 | 0.3% |
| Czech | 33 | 0.3% |
| Danish | 53 | 0.4% |
| Dutch | 312 | 2.5% |
| English | 1,566 | 12.4% |
| French (except Basque) | 256 | 2.0% |
| French Canadian | 35 | 0.3% |
| German | 2,302 | 18.2% |
| Greek | 83 | 0.7% |
| Hungarian | 52 | 0.4% |
| Irish | 1,603 | 12.7% |
| Italian | 287 | 2.3% |
| Lithuanian | 25 | 0.2% |
| Norwegian | 37 | 0.3% |
| Polish | 281 | 2.2% |
| Portuguese | 0 | 0.0% |
| Russian | 34 | 0.3% |
| Scotch-Irish | 245 | 1.9% |
| Scottish | 242 | 1.9% |
| Slovak | 38 | 0.3% |
| Subsaharan African | 0 | 0.0% |
| Swedish | 52 | 0.4% |
| Swiss | 13 | 0.1% |
| Ukrainian | 2 | 0.0% |
| Welsh | 60 | 0.5% |
| West Indian (excluding Hispanic origin groups) | 6 | 0.0% |
Households By Type in Johnson County
*Base on 2012 Data
| Total households | 4,279 | 100% |
| Family households (families) | 2,956 | 69.1% |
| With own children under 18 years | 1,033 | 24.1% |
| Married-couple family | 2,517 | 58.8% |
| With own children under 18 years | 848 | 19.8% |
| Male householder, no wife present, family | 126 | 2.9% |
| With own children under 18 years | 41 | 1.0% |
| Female householder, no husband present, family | 313 | 7.3% |
| With own children under 18 years | 144 | 3.4% |
| Nonfamily households | 1,323 | 30.9% |
| Householder living alone | 1,223 | 28.6% |
| 65 years and over | 632 | 14.8% |
| Households with one or more people under 18 years | 1,123 | 26.2% |
| Households with one or more people 65 years and over | 1,513 | 35.4% |
| Average household size | 2 | 0% |
| Average family size | 3 | 0% |
Relationship in Johnson County
*Base on 2012 Data
| Population in households | 10,587 | 100% |
| Householder | 4,279 | 40.4% |
| Spouse | 2,518 | 23.8% |
| Child | 3,154 | 29.8% |
| Other relatives | 422 | 4.0% |
| Nonrelatives | 214 | 2.0% |
| Unmarried partner | 96 | 0.9% |
Marital Status in Johnson County
*Base on 2012 Data
| Males 15 years and over | 6,228 | 100% |
| Never married | 2,285 | 36.7% |
| Now married, except separated | 2,849 | 45.7% |
| Separated | 171 | 2.7% |
| Widowed | 212 | 3.4% |
| Divorced | 711 | 11.4% |
| Females 15 years and over | 4,514 | 100% |
| Never married | 773 | 17.1% |
| Now married, except separated | 2,600 | 57.6% |
| Separated | 53 | 1.2% |
| Widowed | 586 | 13.0% |
| Divorced | 502 | 11.1% |
Fertility in Johnson County
*Base on 2012 Data
| Number of women 15 to 50 years old who had a birth in the past 12 months | 59 | 100% |
| Unmarried women (widowed, divorced, and never married) | 30 | 50.8% |
| Per 1,000 unmarried women | 32 | 0% |
| Per 1,000 women 15 to 50 years old | 27 | 0% |
| Per 1,000 women 15 to 19 years old | 49 | 0% |
| Per 1,000 women 20 to 34 years old | 44 | 0% |
| Per 1,000 women 35 to 50 years old | 8 | 0% |
Grandparents in Johnson County
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 166 | 100% |
| Responsible for grandchildren | 116 | 69.9% |
| Less than 1 year | 15 | 9.0% |
| 1 or 2 years | 35 | 21.1% |
| 3 or 4 years | 45 | 27.1% |
| 5 or more years | 21 | 12.7% |
| Number of grandparents responsible for own grandchildren under 18 years | 116 | 100% |
| Who are female | 67 | 57.8% |
| Who are married | 107 | 92.2% |
School Enrollment in Johnson County
*Base on 2012 Data
| Population 3 years and over enrolled in school | 2,677 | 100% |
| Nursery school, preschool | 144 | 5.4% |
| Kindergarten | 100 | 3.7% |
| Elementary school (grades 1-8) | 1,104 | 41.2% |
| High school (grades 9-12) | 670 | 25.0% |
| College or graduate school | 659 | 24.6% |
Educational Attainment in Johnson County
*Base on 2012 Data
| Population 25 years and over | 9,160 | 100% |
| Less than 9th grade | 554 | 6.0% |
| 9th to 12th grade, no diploma | 1,123 | 12.3% |
| High school graduate (includes equivalency) | 3,011 | 32.9% |
| Some college, no degree | 2,141 | 23.4% |
| Associate's degree | 964 | 10.5% |
| Bachelor's degree | 1,026 | 11.2% |
| Graduate or professional degree | 341 | 3.7% |
| Percent high school graduate or higher | 0 | 81.7% |
| Percent bachelor's degree or higher | 0 | 14.9% |
Veteran Status in Johnson County
*Base on 2012 Data
| Civilian population 18 years and over | 10,293 | 100% |
| Civilian veterans | 1,451 | 14.1% |
Disability Status Of The Civilian Noninstitutionalized Population in Johnson County
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 10,611 | 100% |
| With a disability | 2,007 | 18.9% |
| Under 18 years | 2,350 | 100% |
| With a disability | 79 | 3.4% |
| 18 to 64 years | 6,139 | 100% |
| With a disability | 929 | 15.1% |
| 65 years and over | 2,122 | 100% |
| With a disability | 999 | 47.1% |
Residence 1 Year Ago in Johnson County
*Base on 2012 Data
| Population 1 year and over | 12,581 | 100% |
| Same house | 10,628 | 84.5% |
| Different house in the U.S. | 1,953 | 15.5% |
| Same county | 501 | 4.0% |
| Different county | 1,452 | 11.5% |
| Same state | 1,278 | 10.2% |
| Different state | 174 | 1.4% |
| Abroad | 0 | 0.0% |
Place Of Birth in Johnson County
*Base on 2012 Data
| Total population | 12,653 | 100% |
| Native | 12,414 | 98.1% |
| Born in United States | 12,382 | 97.9% |
| State of residence | 9,064 | 71.6% |
| Different state | 3,318 | 26.2% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 32 | 0.3% |
| Foreign born | 239 | 1.9% |
U.S. Citizenship Status in Johnson County
*Base on 2012 Data
| Foreign-born population | 239 | 100% |
| Naturalized U.S. citizen | 57 | 23.8% |
| Not a U.S. citizen | 182 | 76.2% |
Year of Entry in Johnson County
*Base on 2012 Data
| Population born outside the United States | 271 | 100% |
| Native | 32 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 32 | 100.0% |
| Foreign born | 239 | 100% |
| Entered 2010 or later | 7 | 2.9% |
| Entered before 2010 | 232 | 97.1% |
World Region Of Birth Of Foreign Born in Johnson County
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 239 | 100% |
| Europe | 13 | 5.4% |
| Asia | 68 | 28.5% |
| Africa | 0 | 0.0% |
| Oceania | 3 | 1.3% |
| Latin America | 155 | 64.9% |
| Northern America | 0 | 0.0% |