Language Spoken At Home in Marion County
*Base on 2012 Data
| Population 5 years and over | 836,055 | 100% |
| English only | 735,769 | 88.0% |
| Language other than English | 100,286 | 12.0% |
| Speak English less than very well | 51,260 | 6.1% |
| Spanish | 68,265 | 8.2% |
| Speak English less than very well | 39,107 | 4.7% |
| Other Indo-European languages | 14,723 | 1.8% |
| Speak English less than very well | 4,033 | 0.5% |
| Asian and Pacific Islander languages | 10,144 | 1.2% |
| Speak English less than very well | 5,968 | 0.7% |
| Other languages | 7,154 | 0.9% |
| Speak English less than very well | 2,152 | 0.3% |
Ancestry in Marion County
*Base on 2012 Data
| Total population | 904,535 | 100% |
| American | 62,372 | 6.9% |
| Arab | 3,364 | 0.4% |
| Czech | 1,965 | 0.2% |
| Danish | 1,293 | 0.1% |
| Dutch | 12,110 | 1.3% |
| English | 68,427 | 7.6% |
| French (except Basque) | 16,272 | 1.8% |
| French Canadian | 1,935 | 0.2% |
| German | 158,258 | 17.5% |
| Greek | 2,481 | 0.3% |
| Hungarian | 2,927 | 0.3% |
| Irish | 99,663 | 11.0% |
| Italian | 21,954 | 2.4% |
| Lithuanian | 1,241 | 0.1% |
| Norwegian | 4,095 | 0.5% |
| Polish | 13,619 | 1.5% |
| Portuguese | 468 | 0.1% |
| Russian | 3,366 | 0.4% |
| Scotch-Irish | 7,604 | 0.8% |
| Scottish | 14,127 | 1.6% |
| Slovak | 1,570 | 0.2% |
| Subsaharan African | 44,158 | 4.9% |
| Swedish | 5,973 | 0.7% |
| Swiss | 2,509 | 0.3% |
| Ukrainian | 898 | 0.1% |
| Welsh | 4,725 | 0.5% |
| West Indian (excluding Hispanic origin groups) | 1,684 | 0.2% |
Households By Type in Marion County
*Base on 2012 Data
| Total households | 359,438 | 100% |
| Family households (families) | 211,413 | 58.8% |
| With own children under 18 years | 101,565 | 28.3% |
| Married-couple family | 135,736 | 37.8% |
| With own children under 18 years | 55,264 | 15.4% |
| Male householder, no wife present, family | 16,080 | 4.5% |
| With own children under 18 years | 8,783 | 2.4% |
| Female householder, no husband present, family | 59,597 | 16.6% |
| With own children under 18 years | 37,518 | 10.4% |
| Nonfamily households | 148,025 | 41.2% |
| Householder living alone | 121,639 | 33.8% |
| 65 years and over | 31,686 | 8.8% |
| Households with one or more people under 18 years | 113,930 | 31.7% |
| Households with one or more people 65 years and over | 70,971 | 19.7% |
| Average household size | 2 | 0% |
| Average family size | 3 | 0% |
Relationship in Marion County
*Base on 2012 Data
| Population in households | 887,971 | 100% |
| Householder | 359,438 | 40.5% |
| Spouse | 135,622 | 15.3% |
| Child | 268,677 | 30.3% |
| Other relatives | 60,126 | 6.8% |
| Nonrelatives | 64,108 | 7.2% |
| Unmarried partner | 25,641 | 2.9% |
Marital Status in Marion County
*Base on 2012 Data
| Males 15 years and over | 339,007 | 100% |
| Never married | 136,976 | 40.4% |
| Now married, except separated | 147,371 | 43.5% |
| Separated | 6,785 | 2.0% |
| Widowed | 8,061 | 2.4% |
| Divorced | 39,814 | 11.7% |
| Females 15 years and over | 374,716 | 100% |
| Never married | 132,030 | 35.2% |
| Now married, except separated | 144,522 | 38.6% |
| Separated | 10,623 | 2.8% |
| Widowed | 32,418 | 8.7% |
| Divorced | 55,123 | 14.7% |
Fertility in Marion County
*Base on 2012 Data
| Number of women 15 to 50 years old who had a birth in the past 12 months | 14,423 | 100% |
| Unmarried women (widowed, divorced, and never married) | 6,824 | 47.3% |
| Per 1,000 unmarried women | 46 | 0% |
| Per 1,000 women 15 to 50 years old | 60 | 0% |
| Per 1,000 women 15 to 19 years old | 36 | 0% |
| Per 1,000 women 20 to 34 years old | 100 | 0% |
| Per 1,000 women 35 to 50 years old | 23 | 0% |
Grandparents in Marion County
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 18,998 | 100% |
| Responsible for grandchildren | 9,455 | 49.8% |
| Less than 1 year | 1,796 | 9.5% |
| 1 or 2 years | 2,430 | 12.8% |
| 3 or 4 years | 1,762 | 9.3% |
| 5 or more years | 3,467 | 18.2% |
| Number of grandparents responsible for own grandchildren under 18 years | 9,455 | 100% |
| Who are female | 6,251 | 66.1% |
| Who are married | 5,896 | 62.4% |
School Enrollment in Marion County
*Base on 2012 Data
| Population 3 years and over enrolled in school | 240,449 | 100% |
| Nursery school, preschool | 14,085 | 5.9% |
| Kindergarten | 11,986 | 5.0% |
| Elementary school (grades 1-8) | 99,374 | 41.3% |
| High school (grades 9-12) | 49,611 | 20.6% |
| College or graduate school | 65,393 | 27.2% |
Educational Attainment in Marion County
*Base on 2012 Data
| Population 25 years and over | 584,250 | 100% |
| Less than 9th grade | 29,977 | 5.1% |
| 9th to 12th grade, no diploma | 61,013 | 10.4% |
| High school graduate (includes equivalency) | 171,059 | 29.3% |
| Some college, no degree | 121,265 | 20.8% |
| Associate's degree | 39,836 | 6.8% |
| Bachelor's degree | 106,504 | 18.2% |
| Graduate or professional degree | 54,596 | 9.3% |
| Percent high school graduate or higher | 0 | 84.4% |
| Percent bachelor's degree or higher | 0 | 27.6% |
Veteran Status in Marion County
*Base on 2012 Data
| Civilian population 18 years and over | 676,846 | 100% |
| Civilian veterans | 59,214 | 8.7% |
Disability Status Of The Civilian Noninstitutionalized Population in Marion County
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 893,974 | 100% |
| With a disability | 112,648 | 12.6% |
| Under 18 years | 226,085 | 100% |
| With a disability | 10,481 | 4.6% |
| 18 to 64 years | 575,214 | 100% |
| With a disability | 66,137 | 11.5% |
| 65 years and over | 92,675 | 100% |
| With a disability | 36,030 | 38.9% |
Residence 1 Year Ago in Marion County
*Base on 2012 Data
| Population 1 year and over | 890,942 | 100% |
| Same house | 728,462 | 81.8% |
| Different house in the U.S. | 157,746 | 17.7% |
| Same county | 114,898 | 12.9% |
| Different county | 42,848 | 4.8% |
| Same state | 26,952 | 3.0% |
| Different state | 15,896 | 1.8% |
| Abroad | 4,734 | 0.5% |
Place Of Birth in Marion County
*Base on 2012 Data
| Total population | 904,535 | 100% |
| Native | 830,259 | 91.8% |
| Born in United States | 824,608 | 91.2% |
| State of residence | 605,110 | 66.9% |
| Different state | 219,498 | 24.3% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 5,651 | 0.6% |
| Foreign born | 74,276 | 8.2% |
U.S. Citizenship Status in Marion County
*Base on 2012 Data
| Foreign-born population | 74,276 | 100% |
| Naturalized U.S. citizen | 17,941 | 24.2% |
| Not a U.S. citizen | 56,335 | 75.8% |
Year of Entry in Marion County
*Base on 2012 Data
| Population born outside the United States | 79,927 | 100% |
| Native | 5,651 | 100% |
| Entered 2010 or later | 135 | 2.4% |
| Entered before 2010 | 5,516 | 97.6% |
| Foreign born | 74,276 | 100% |
| Entered 2010 or later | 3,386 | 4.6% |
| Entered before 2010 | 70,890 | 95.4% |
World Region Of Birth Of Foreign Born in Marion County
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 74,276 | 100% |
| Europe | 4,718 | 6.4% |
| Asia | 16,560 | 22.3% |
| Africa | 7,769 | 10.5% |
| Oceania | 294 | 0.4% |
| Latin America | 44,215 | 59.5% |
| Northern America | 720 | 1.0% |