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Language Spoken At Home in Contra Costa County
*Base on 2012 Data
Population 5 years and over | 985,200 | 100% |
English only | 658,885 | 66.9% |
Language other than English | 326,315 | 33.1% |
Speak English less than very well | 134,256 | 13.6% |
Spanish | 173,303 | 17.6% |
Speak English less than very well | 79,205 | 8.0% |
Other Indo-European languages | 54,294 | 5.5% |
Speak English less than very well | 15,798 | 1.6% |
Asian and Pacific Islander languages | 89,644 | 9.1% |
Speak English less than very well | 36,936 | 3.7% |
Other languages | 9,074 | 0.9% |
Speak English less than very well | 2,317 | 0.2% |
Ancestry in Contra Costa County
*Base on 2012 Data
Total population | 1,052,047 | 100% |
American | 33,957 | 3.2% |
Arab | 7,465 | 0.7% |
Czech | 2,866 | 0.3% |
Danish | 7,624 | 0.7% |
Dutch | 11,987 | 1.1% |
English | 83,456 | 7.9% |
French (except Basque) | 22,975 | 2.2% |
French Canadian | 3,180 | 0.3% |
German | 109,493 | 10.4% |
Greek | 5,930 | 0.6% |
Hungarian | 4,014 | 0.4% |
Irish | 95,986 | 9.1% |
Italian | 63,555 | 6.0% |
Lithuanian | 1,717 | 0.2% |
Norwegian | 15,733 | 1.5% |
Polish | 14,511 | 1.4% |
Portuguese | 19,656 | 1.9% |
Russian | 14,063 | 1.3% |
Scotch-Irish | 7,961 | 0.8% |
Scottish | 19,151 | 1.8% |
Slovak | 916 | 0.1% |
Subsaharan African | 10,538 | 1.0% |
Swedish | 15,165 | 1.4% |
Swiss | 3,614 | 0.3% |
Ukrainian | 3,417 | 0.3% |
Welsh | 6,831 | 0.6% |
West Indian (excluding Hispanic origin groups) | 2,139 | 0.2% |
Households By Type in Contra Costa County
*Base on 2012 Data
Total households | 373,145 | 100% |
Family households (families) | 262,863 | 70.4% |
With own children under 18 years | 126,624 | 33.9% |
Married-couple family | 199,468 | 53.5% |
With own children under 18 years | 93,902 | 25.2% |
Male householder, no wife present, family | 19,168 | 5.1% |
With own children under 18 years | 8,848 | 2.4% |
Female householder, no husband present, family | 44,227 | 11.9% |
With own children under 18 years | 23,874 | 6.4% |
Nonfamily households | 110,282 | 29.6% |
Householder living alone | 89,647 | 24.0% |
65 years and over | 34,104 | 9.1% |
Households with one or more people under 18 years | 137,727 | 36.9% |
Households with one or more people 65 years and over | 94,686 | 25.4% |
Average household size | 3 | 0% |
Average family size | 3 | 0% |
Relationship in Contra Costa County
*Base on 2012 Data
Population in households | 1,040,898 | 100% |
Householder | 373,145 | 35.8% |
Spouse | 199,497 | 19.2% |
Child | 333,091 | 32.0% |
Other relatives | 79,793 | 7.7% |
Nonrelatives | 55,372 | 5.3% |
Unmarried partner | 21,534 | 2.1% |
Marital Status in Contra Costa County
*Base on 2012 Data
Males 15 years and over | 404,754 | 100% |
Never married | 135,285 | 33.4% |
Now married, except separated | 219,648 | 54.3% |
Separated | 6,594 | 1.6% |
Widowed | 10,101 | 2.5% |
Divorced | 33,126 | 8.2% |
Females 15 years and over | 434,314 | 100% |
Never married | 121,555 | 28.0% |
Now married, except separated | 215,990 | 49.7% |
Separated | 10,746 | 2.5% |
Widowed | 35,669 | 8.2% |
Divorced | 50,354 | 11.6% |
Fertility in Contra Costa County
*Base on 2012 Data
Number of women 15 to 50 years old who had a birth in the past 12 months | 13,895 | 100% |
Unmarried women (widowed, divorced, and never married) | 4,056 | 29.2% |
Per 1,000 unmarried women | 31 | 0% |
Per 1,000 women 15 to 50 years old | 54 | 0% |
Per 1,000 women 15 to 19 years old | 19 | 0% |
Per 1,000 women 20 to 34 years old | 97 | 0% |
Per 1,000 women 35 to 50 years old | 31 | 0% |
Grandparents in Contra Costa County
*Base on 2012 Data
Number of grandparents living with own grandchildren under 18 years | 24,881 | 100% |
Responsible for grandchildren | 7,644 | 30.7% |
Less than 1 year | 1,631 | 6.6% |
1 or 2 years | 1,646 | 6.6% |
3 or 4 years | 1,565 | 6.3% |
5 or more years | 2,802 | 11.3% |
Number of grandparents responsible for own grandchildren under 18 years | 7,644 | 100% |
Who are female | 4,670 | 61.1% |
Who are married | 5,687 | 74.4% |
School Enrollment in Contra Costa County
*Base on 2012 Data
Population 3 years and over enrolled in school | 287,217 | 100% |
Nursery school, preschool | 18,735 | 6.5% |
Kindergarten | 14,914 | 5.2% |
Elementary school (grades 1-8) | 116,282 | 40.5% |
High school (grades 9-12) | 64,000 | 22.3% |
College or graduate school | 73,286 | 25.5% |
Educational Attainment in Contra Costa County
*Base on 2012 Data
Population 25 years and over | 704,269 | 100% |
Less than 9th grade | 40,521 | 5.8% |
9th to 12th grade, no diploma | 39,787 | 5.6% |
High school graduate (includes equivalency) | 135,454 | 19.2% |
Some college, no degree | 158,843 | 22.6% |
Associate's degree | 57,478 | 8.2% |
Bachelor's degree | 173,014 | 24.6% |
Graduate or professional degree | 99,172 | 14.1% |
Percent high school graduate or higher | 0 | 88.6% |
Percent bachelor's degree or higher | 0 | 38.6% |
Veteran Status in Contra Costa County
*Base on 2012 Data
Civilian population 18 years and over | 791,701 | 100% |
Civilian veterans | 60,108 | 7.6% |
Disability Status Of The Civilian Noninstitutionalized Population in Contra Costa County
*Base on 2012 Data
Total Civilian Noninstitutionalized Population | 1,046,170 | 100% |
With a disability | 102,971 | 9.8% |
Under 18 years | 259,297 | 100% |
With a disability | 8,065 | 3.1% |
18 to 64 years | 656,961 | 100% |
With a disability | 49,585 | 7.5% |
65 years and over | 129,912 | 100% |
With a disability | 45,321 | 34.9% |
Residence 1 Year Ago in Contra Costa County
*Base on 2012 Data
Population 1 year and over | 1,040,364 | 100% |
Same house | 886,262 | 85.2% |
Different house in the U.S. | 146,746 | 14.1% |
Same county | 97,623 | 9.4% |
Different county | 49,123 | 4.7% |
Same state | 38,592 | 3.7% |
Different state | 10,531 | 1.0% |
Abroad | 7,356 | 0.7% |
Place Of Birth in Contra Costa County
*Base on 2012 Data
Total population | 1,052,047 | 100% |
Native | 803,489 | 76.4% |
Born in United States | 789,583 | 75.1% |
State of residence | 589,471 | 56.0% |
Different state | 200,112 | 19.0% |
Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 13,906 | 1.3% |
Foreign born | 248,558 | 23.6% |
U.S. Citizenship Status in Contra Costa County
*Base on 2012 Data
Foreign-born population | 248,558 | 100% |
Naturalized U.S. citizen | 127,487 | 51.3% |
Not a U.S. citizen | 121,071 | 48.7% |
Year of Entry in Contra Costa County
*Base on 2012 Data
Population born outside the United States | 262,464 | 100% |
Native | 13,906 | 100% |
Entered 2010 or later | 414 | 3.0% |
Entered before 2010 | 13,492 | 97.0% |
Foreign born | 248,558 | 100% |
Entered 2010 or later | 4,310 | 1.7% |
Entered before 2010 | 244,248 | 98.3% |
World Region Of Birth Of Foreign Born in Contra Costa County
*Base on 2012 Data
Foreign-born population, excluding population born at sea | 248,545 | 100% |
Europe | 22,798 | 9.2% |
Asia | 107,221 | 43.1% |
Africa | 6,789 | 2.7% |
Oceania | 2,949 | 1.2% |
Latin America | 105,096 | 42.3% |
Northern America | 3,692 | 1.5% |