Language Spoken At Home in Jefferson County
*Base on 2012 Data
| Population 5 years and over | 614,242 | 100% |
| English only | 577,574 | 94.0% |
| Language other than English | 36,668 | 6.0% |
| Speak English less than very well | 17,668 | 2.9% |
| Spanish | 22,795 | 3.7% |
| Speak English less than very well | 13,607 | 2.2% |
| Other Indo-European languages | 6,904 | 1.1% |
| Speak English less than very well | 1,422 | 0.2% |
| Asian and Pacific Islander languages | 4,552 | 0.7% |
| Speak English less than very well | 2,146 | 0.3% |
| Other languages | 2,417 | 0.4% |
| Speak English less than very well | 493 | 0.1% |
Ancestry in Jefferson County
*Base on 2012 Data
| Total population | 658,464 | 100% |
| American | 71,695 | 10.9% |
| Arab | 3,135 | 0.5% |
| Czech | 517 | 0.1% |
| Danish | 632 | 0.1% |
| Dutch | 5,413 | 0.8% |
| English | 57,656 | 8.8% |
| French (except Basque) | 10,887 | 1.7% |
| French Canadian | 775 | 0.1% |
| German | 40,629 | 6.2% |
| Greek | 1,123 | 0.2% |
| Hungarian | 592 | 0.1% |
| Irish | 50,214 | 7.6% |
| Italian | 13,688 | 2.1% |
| Lithuanian | 216 | 0.0% |
| Norwegian | 1,598 | 0.2% |
| Polish | 4,487 | 0.7% |
| Portuguese | 184 | 0.0% |
| Russian | 1,605 | 0.2% |
| Scotch-Irish | 12,212 | 1.9% |
| Scottish | 15,119 | 2.3% |
| Slovak | 377 | 0.1% |
| Subsaharan African | 6,036 | 0.9% |
| Swedish | 2,333 | 0.4% |
| Swiss | 604 | 0.1% |
| Ukrainian | 404 | 0.1% |
| Welsh | 3,270 | 0.5% |
| West Indian (excluding Hispanic origin groups) | 853 | 0.1% |
Households By Type in Jefferson County
*Base on 2012 Data
| Total households | 259,255 | 100% |
| Family households (families) | 166,280 | 64.1% |
| With own children under 18 years | 70,938 | 27.4% |
| Married-couple family | 110,326 | 42.6% |
| With own children under 18 years | 43,050 | 16.6% |
| Male householder, no wife present, family | 9,787 | 3.8% |
| With own children under 18 years | 3,588 | 1.4% |
| Female householder, no husband present, family | 46,167 | 17.8% |
| With own children under 18 years | 24,300 | 9.4% |
| Nonfamily households | 92,975 | 35.9% |
| Householder living alone | 81,256 | 31.3% |
| 65 years and over | 25,965 | 10.0% |
| Households with one or more people under 18 years | 81,074 | 31.3% |
| Households with one or more people 65 years and over | 63,154 | 24.4% |
| Average household size | 2 | 0% |
| Average family size | 3 | 0% |
Relationship in Jefferson County
*Base on 2012 Data
| Population in households | 643,516 | 100% |
| Householder | 259,255 | 40.3% |
| Spouse | 110,304 | 17.1% |
| Child | 197,852 | 30.7% |
| Other relatives | 50,145 | 7.8% |
| Nonrelatives | 25,960 | 4.0% |
| Unmarried partner | 8,718 | 1.4% |
Marital Status in Jefferson County
*Base on 2012 Data
| Males 15 years and over | 246,139 | 100% |
| Never married | 88,916 | 36.1% |
| Now married, except separated | 118,259 | 48.0% |
| Separated | 5,449 | 2.2% |
| Widowed | 7,455 | 3.0% |
| Divorced | 26,060 | 10.6% |
| Females 15 years and over | 283,693 | 100% |
| Never married | 86,693 | 30.6% |
| Now married, except separated | 117,594 | 41.5% |
| Separated | 8,653 | 3.1% |
| Widowed | 31,133 | 11.0% |
| Divorced | 39,620 | 14.0% |
Fertility in Jefferson County
*Base on 2012 Data
| Number of women 15 to 50 years old who had a birth in the past 12 months | 9,734 | 100% |
| Unmarried women (widowed, divorced, and never married) | 4,520 | 46.4% |
| Per 1,000 unmarried women | 47 | 0% |
| Per 1,000 women 15 to 50 years old | 58 | 0% |
| Per 1,000 women 15 to 19 years old | 30 | 0% |
| Per 1,000 women 20 to 34 years old | 102 | 0% |
| Per 1,000 women 35 to 50 years old | 23 | 0% |
Grandparents in Jefferson County
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 15,502 | 100% |
| Responsible for grandchildren | 8,676 | 56.0% |
| Less than 1 year | 1,597 | 10.3% |
| 1 or 2 years | 2,056 | 13.3% |
| 3 or 4 years | 1,236 | 8.0% |
| 5 or more years | 3,787 | 24.4% |
| Number of grandparents responsible for own grandchildren under 18 years | 8,676 | 100% |
| Who are female | 6,108 | 70.4% |
| Who are married | 5,302 | 61.1% |
School Enrollment in Jefferson County
*Base on 2012 Data
| Population 3 years and over enrolled in school | 170,189 | 100% |
| Nursery school, preschool | 11,388 | 6.7% |
| Kindergarten | 9,404 | 5.5% |
| Elementary school (grades 1-8) | 67,764 | 39.8% |
| High school (grades 9-12) | 34,867 | 20.5% |
| College or graduate school | 46,766 | 27.5% |
Educational Attainment in Jefferson County
*Base on 2012 Data
| Population 25 years and over | 439,531 | 100% |
| Less than 9th grade | 16,716 | 3.8% |
| 9th to 12th grade, no diploma | 39,331 | 8.9% |
| High school graduate (includes equivalency) | 120,355 | 27.4% |
| Some college, no degree | 102,111 | 23.2% |
| Associate's degree | 32,308 | 7.4% |
| Bachelor's degree | 79,583 | 18.1% |
| Graduate or professional degree | 49,127 | 11.2% |
| Percent high school graduate or higher | 0 | 87.2% |
| Percent bachelor's degree or higher | 0 | 29.3% |
Veteran Status in Jefferson County
*Base on 2012 Data
| Civilian population 18 years and over | 502,789 | 100% |
| Civilian veterans | 48,171 | 9.6% |
Disability Status Of The Civilian Noninstitutionalized Population in Jefferson County
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 650,320 | 100% |
| With a disability | 92,277 | 14.2% |
| Under 18 years | 154,536 | 100% |
| With a disability | 6,883 | 4.5% |
| 18 to 64 years | 411,629 | 100% |
| With a disability | 51,206 | 12.4% |
| 65 years and over | 84,155 | 100% |
| With a disability | 34,188 | 40.6% |
Residence 1 Year Ago in Jefferson County
*Base on 2012 Data
| Population 1 year and over | 650,042 | 100% |
| Same house | 543,002 | 83.5% |
| Different house in the U.S. | 105,070 | 16.2% |
| Same county | 74,844 | 11.5% |
| Different county | 30,226 | 4.6% |
| Same state | 17,472 | 2.7% |
| Different state | 12,754 | 2.0% |
| Abroad | 1,970 | 0.3% |
Place Of Birth in Jefferson County
*Base on 2012 Data
| Total population | 658,464 | 100% |
| Native | 630,266 | 95.7% |
| Born in United States | 626,660 | 95.2% |
| State of residence | 497,477 | 75.6% |
| Different state | 129,183 | 19.6% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 3,606 | 0.5% |
| Foreign born | 28,198 | 4.3% |
U.S. Citizenship Status in Jefferson County
*Base on 2012 Data
| Foreign-born population | 28,198 | 100% |
| Naturalized U.S. citizen | 8,244 | 29.2% |
| Not a U.S. citizen | 19,954 | 70.8% |
Year of Entry in Jefferson County
*Base on 2012 Data
| Population born outside the United States | 31,804 | 100% |
| Native | 3,606 | 100% |
| Entered 2010 or later | 103 | 2.9% |
| Entered before 2010 | 3,503 | 97.1% |
| Foreign born | 28,198 | 100% |
| Entered 2010 or later | 1,239 | 4.4% |
| Entered before 2010 | 26,959 | 95.6% |
World Region Of Birth Of Foreign Born in Jefferson County
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 28,198 | 100% |
| Europe | 2,241 | 7.9% |
| Asia | 8,397 | 29.8% |
| Africa | 2,196 | 7.8% |
| Oceania | 46 | 0.2% |
| Latin America | 14,696 | 52.1% |
| Northern America | 622 | 2.2% |