Language Spoken At Home in Fairfax County
*Base on 2012 Data
| Population 5 years and over | 1,010,735 | 100% |
| English only | 634,536 | 62.8% |
| Language other than English | 376,199 | 37.2% |
| Speak English less than very well | 150,689 | 14.9% |
| Spanish | 138,397 | 13.7% |
| Speak English less than very well | 64,092 | 6.3% |
| Other Indo-European languages | 83,654 | 8.3% |
| Speak English less than very well | 22,160 | 2.2% |
| Asian and Pacific Islander languages | 117,911 | 11.7% |
| Speak English less than very well | 53,678 | 5.3% |
| Other languages | 36,237 | 3.6% |
| Speak English less than very well | 10,759 | 1.1% |
Ancestry in Fairfax County
*Base on 2012 Data
| Total population | 1,083,770 | 100% |
| American | 46,620 | 4.3% |
| Arab | 23,218 | 2.1% |
| Czech | 4,600 | 0.4% |
| Danish | 3,895 | 0.4% |
| Dutch | 10,519 | 1.0% |
| English | 105,765 | 9.8% |
| French (except Basque) | 23,908 | 2.2% |
| French Canadian | 5,253 | 0.5% |
| German | 132,209 | 12.2% |
| Greek | 7,317 | 0.7% |
| Hungarian | 6,343 | 0.6% |
| Irish | 117,286 | 10.8% |
| Italian | 56,191 | 5.2% |
| Lithuanian | 3,368 | 0.3% |
| Norwegian | 10,075 | 0.9% |
| Polish | 29,386 | 2.7% |
| Portuguese | 2,670 | 0.2% |
| Russian | 14,901 | 1.4% |
| Scotch-Irish | 15,202 | 1.4% |
| Scottish | 26,503 | 2.4% |
| Slovak | 3,828 | 0.4% |
| Subsaharan African | 34,193 | 3.2% |
| Swedish | 10,027 | 0.9% |
| Swiss | 3,752 | 0.3% |
| Ukrainian | 4,623 | 0.4% |
| Welsh | 7,910 | 0.7% |
| West Indian (excluding Hispanic origin groups) | 3,866 | 0.4% |
Households By Type in Fairfax County
*Base on 2012 Data
| Total households | 388,452 | 100% |
| Family households (families) | 275,386 | 70.9% |
| With own children under 18 years | 135,164 | 34.8% |
| Married-couple family | 226,475 | 58.3% |
| With own children under 18 years | 111,227 | 28.6% |
| Male householder, no wife present, family | 14,675 | 3.8% |
| With own children under 18 years | 5,748 | 1.5% |
| Female householder, no husband present, family | 34,236 | 8.8% |
| With own children under 18 years | 18,189 | 4.7% |
| Nonfamily households | 113,066 | 29.1% |
| Householder living alone | 90,121 | 23.2% |
| 65 years and over | 23,729 | 6.1% |
| Households with one or more people under 18 years | 143,773 | 37.0% |
| Households with one or more people 65 years and over | 77,710 | 20.0% |
| Average household size | 3 | 0% |
| Average family size | 3 | 0% |
Relationship in Fairfax County
*Base on 2012 Data
| Population in households | 1,075,519 | 100% |
| Householder | 388,452 | 36.1% |
| Spouse | 226,228 | 21.0% |
| Child | 330,493 | 30.7% |
| Other relatives | 71,998 | 6.7% |
| Nonrelatives | 58,348 | 5.4% |
| Unmarried partner | 14,413 | 1.3% |
Marital Status in Fairfax County
*Base on 2012 Data
| Males 15 years and over | 424,440 | 100% |
| Never married | 136,701 | 32.2% |
| Now married, except separated | 250,944 | 59.1% |
| Separated | 6,315 | 1.5% |
| Widowed | 6,471 | 1.5% |
| Divorced | 24,009 | 5.7% |
| Females 15 years and over | 442,244 | 100% |
| Never married | 118,666 | 26.8% |
| Now married, except separated | 246,518 | 55.7% |
| Separated | 8,642 | 2.0% |
| Widowed | 27,038 | 6.1% |
| Divorced | 41,380 | 9.4% |
Fertility in Fairfax County
*Base on 2012 Data
| Number of women 15 to 50 years old who had a birth in the past 12 months | 15,638 | 100% |
| Unmarried women (widowed, divorced, and never married) | 2,761 | 17.7% |
| Per 1,000 unmarried women | 22 | 0% |
| Per 1,000 women 15 to 50 years old | 56 | 0% |
| Per 1,000 women 15 to 19 years old | 14 | 0% |
| Per 1,000 women 20 to 34 years old | 95 | 0% |
| Per 1,000 women 35 to 50 years old | 35 | 0% |
Grandparents in Fairfax County
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 20,116 | 100% |
| Responsible for grandchildren | 5,090 | 25.3% |
| Less than 1 year | 1,218 | 6.1% |
| 1 or 2 years | 1,217 | 6.0% |
| 3 or 4 years | 920 | 4.6% |
| 5 or more years | 1,735 | 8.6% |
| Number of grandparents responsible for own grandchildren under 18 years | 5,090 | 100% |
| Who are female | 3,073 | 60.4% |
| Who are married | 3,885 | 76.3% |
School Enrollment in Fairfax County
*Base on 2012 Data
| Population 3 years and over enrolled in school | 297,048 | 100% |
| Nursery school, preschool | 21,125 | 7.1% |
| Kindergarten | 14,618 | 4.9% |
| Elementary school (grades 1-8) | 114,220 | 38.5% |
| High school (grades 9-12) | 61,555 | 20.7% |
| College or graduate school | 85,530 | 28.8% |
Educational Attainment in Fairfax County
*Base on 2012 Data
| Population 25 years and over | 737,351 | 100% |
| Less than 9th grade | 33,587 | 4.6% |
| 9th to 12th grade, no diploma | 28,302 | 3.8% |
| High school graduate (includes equivalency) | 98,316 | 13.3% |
| Some college, no degree | 109,874 | 14.9% |
| Associate's degree | 38,207 | 5.2% |
| Bachelor's degree | 224,483 | 30.4% |
| Graduate or professional degree | 204,582 | 27.7% |
| Percent high school graduate or higher | 0 | 91.6% |
| Percent bachelor's degree or higher | 0 | 58.2% |
Veteran Status in Fairfax County
*Base on 2012 Data
| Civilian population 18 years and over | 810,284 | 100% |
| Civilian veterans | 83,722 | 10.3% |
Disability Status Of The Civilian Noninstitutionalized Population in Fairfax County
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 1,068,923 | 100% |
| With a disability | 67,654 | 6.3% |
| Under 18 years | 261,346 | 100% |
| With a disability | 5,654 | 2.2% |
| 18 to 64 years | 700,875 | 100% |
| With a disability | 32,706 | 4.7% |
| 65 years and over | 106,702 | 100% |
| With a disability | 29,294 | 27.5% |
Residence 1 Year Ago in Fairfax County
*Base on 2012 Data
| Population 1 year and over | 1,070,527 | 100% |
| Same house | 921,180 | 86.0% |
| Different house in the U.S. | 133,699 | 12.5% |
| Same county | 68,829 | 6.4% |
| Different county | 64,870 | 6.1% |
| Same state | 27,196 | 2.5% |
| Different state | 37,674 | 3.5% |
| Abroad | 15,648 | 1.5% |
Place Of Birth in Fairfax County
*Base on 2012 Data
| Total population | 1,083,770 | 100% |
| Native | 765,950 | 70.7% |
| Born in United States | 738,624 | 68.2% |
| State of residence | 279,860 | 25.8% |
| Different state | 458,764 | 42.3% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 27,326 | 2.5% |
| Foreign born | 317,820 | 29.3% |
U.S. Citizenship Status in Fairfax County
*Base on 2012 Data
| Foreign-born population | 317,820 | 100% |
| Naturalized U.S. citizen | 157,720 | 49.6% |
| Not a U.S. citizen | 160,100 | 50.4% |
Year of Entry in Fairfax County
*Base on 2012 Data
| Population born outside the United States | 345,146 | 100% |
| Native | 27,326 | 100% |
| Entered 2010 or later | 723 | 2.6% |
| Entered before 2010 | 26,603 | 97.4% |
| Foreign born | 317,820 | 100% |
| Entered 2010 or later | 9,044 | 2.8% |
| Entered before 2010 | 308,776 | 97.2% |
World Region Of Birth Of Foreign Born in Fairfax County
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 317,820 | 100% |
| Europe | 23,855 | 7.5% |
| Asia | 163,012 | 51.3% |
| Africa | 28,307 | 8.9% |
| Oceania | 924 | 0.3% |
| Latin America | 98,453 | 31.0% |
| Northern America | 3,269 | 1.0% |