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Population by Age in Contra Costa County
*Base on 2010 Data
| Total population | 1,049,025 | 100.00% |
| Under 5 years | 67,018 | 6.39% |
| 5 to 9 years | 72,285 | 6.89% |
| 10 to 14 years | 74,444 | 7.10% |
| 15 to 19 years | 73,766 | 7.03% |
| 20 to 24 years | 59,943 | 5.71% |
| 25 to 29 years | 64,747 | 6.17% |
| 30 to 34 years | 64,896 | 6.19% |
| 35 to 39 years | 70,520 | 6.72% |
| 40 to 44 years | 78,130 | 7.45% |
| 45 to 49 years | 84,006 | 8.01% |
| 50 to 54 years | 80,074 | 7.63% |
| 55 to 59 years | 69,400 | 6.62% |
| 60 to 64 years | 59,358 | 5.66% |
| 65 to 69 years | 41,276 | 3.93% |
| 70 to 74 years | 29,443 | 2.81% |
| 75 to 79 years | 22,383 | 2.13% |
| 80 to 84 years | 17,964 | 1.71% |
| 85 years and over | 19,372 | 1.85% |
Male Population in Contra Costa County
*Base on 2010 Data
| Male population | 511,526 | 48.76% |
| Under 5 years | 34,004 | 3.24% |
| 5 to 9 years | 36,983 | 3.53% |
| 10 to 14 years | 38,052 | 3.63% |
| 15 to 19 years | 38,187 | 3.64% |
| 20 to 24 years | 30,793 | 2.94% |
| 25 to 29 years | 32,303 | 3.08% |
| 30 to 34 years | 31,637 | 3.02% |
| 35 to 39 years | 34,253 | 3.27% |
| 40 to 44 years | 38,033 | 3.63% |
| 45 to 49 years | 40,737 | 3.88% |
| 50 to 54 years | 38,882 | 3.71% |
| 55 to 59 years | 33,301 | 3.17% |
| 60 to 64 years | 28,062 | 2.68% |
| 65 to 69 years | 19,189 | 1.83% |
| 70 to 74 years | 13,534 | 1.29% |
| 75 to 79 years | 9,761 | 0.93% |
| 80 to 84 years | 7,197 | 0.69% |
| 85 years and over | 6,618 | 0.63% |
Female Population in Contra Costa County
*Base on 2010 Data
| Female population | 537,499 | 51.24% |
| Under 5 years | 33,014 | 3.15% |
| 5 to 9 years | 35,302 | 3.37% |
| 10 to 14 years | 36,392 | 3.47% |
| 15 to 19 years | 35,579 | 3.39% |
| 20 to 24 years | 29,150 | 2.78% |
| 25 to 29 years | 32,444 | 3.09% |
| 30 to 34 years | 33,259 | 3.17% |
| 35 to 39 years | 36,267 | 3.46% |
| 40 to 44 years | 40,097 | 3.82% |
| 45 to 49 years | 43,269 | 4.12% |
| 50 to 54 years | 41,192 | 3.93% |
| 55 to 59 years | 36,099 | 3.44% |
| 60 to 64 years | 31,296 | 2.98% |
| 65 to 69 years | 22,087 | 2.11% |
| 70 to 74 years | 15,909 | 1.52% |
| 75 to 79 years | 12,622 | 1.20% |
| 80 to 84 years | 10,767 | 1.03% |
| 85 years and over | 12,754 | 1.22% |
Median Age in Contra Costa County
*Base on 2010 Data
| Both | 38.50% | |
| Male | 37.10% | |
| Female | 39.70% |
Race in Contra Costa County
*Base on 2010 Data
| Total | 1,049,025 | 100.00% |
| Population of one race | 986,800 | 94.07% |
| White | 614,512 | 58.58% |
| Black or African American | 97,161 | 9.26% |
| American Indian and Alaska Native | 6,122 | 0.58% |
| Asian | 151,469 | 14.44% |
| Asian Indian | 22,328 | 2.13% |
| Chinese | 40,360 | 3.85% |
| Filipino | 48,418 | 4.62% |
| Japanese | 7,389 | 0.70% |
| Korean | 8,216 | 0.78% |
| Vietnamese | 7,401 | 0.71% |
| Other Asian | 17,357 | 1.65% |
| Native Hawaiian and Other Pacific Islander | 4,845 | 0.46% |
| Native Hawaiian | 648 | 0.06% |
| Guamanian or Chamorro | 696 | 0.07% |
| Samoan | 901 | 0.09% |
| Other Pacific Islander | 2,600 | 0.25% |
| Some Other Race | 112,691 | 10.74% |
| Population of Two or More Races | 62,225 | 5.93% |
| White; American Indian and Alaska Native | 6,076 | 0.58% |
| White; Asian | 19,514 | 1.86% |
| White; Black or African American | 6,855 | 0.65% |
| White; Some Other Race | 12,192 | 1.16% |
The Population 16 Years in Contra Costa County
*Base on 2010 Data
| Total | 819,910 | 100.00% |
| Male | 394,606 | 48.13% |
| Female | 425,304 | 51.87% |
The Population 18 Years in Contra Costa County
*Base on 2010 Data
| Total | 788,520 | 100.00% |
| Male | 378,427 | 47.99% |
| Female | 410,093 | 52.01% |
The Population 21 Years in Contra Costa County
*Base on 2010 Data
| Total | 748,999 | 100.00% |
| Male | 357,828 | 47.77% |
| Female | 391,171 | 52.23% |
The Population 62 Years in Contra Costa County
*Base on 2010 Data
| Total | 164,651 | 100.00% |
| Male | 72,428 | 43.99% |
| Female | 92,223 | 56.01% |
The Population 65 Years in Contra Costa County
*Base on 2010 Data
| Total | 130,438 | 100.00% |
| Male | 56,299 | 43.16% |
| Female | 74,139 | 56.84% |
Race (total races tallied) in Contra Costa County
*Base on 2010 Data
| White alone or in combination with one or more other races | 665,881 | 59.57% |
| Black or African American alone or in combination with one or more other races | 112,381 | 10.05% |
| American Indian and Alaska Native alone or in combination with one or more other races | 17,327 | 1.55% |
| Asian alone or in combination with one or more other races | 180,773 | 16.17% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 10,153 | 0.91% |
| Some Other Race alone or in combination with one or more other races | 131,278 | 11.74% |
Hispanic or Latino by Specific Origin in Contra Costa County
*Base on 2010 Data
| Total | 1,049,025 | 100.00% |
| Hispanic or Latino (of any race) | 255,560 | 24.36% |
| Mexican | 179,192 | 17.08% |
| Puerto Rican | 7,170 | 0.68% |
| Cuban | 1,671 | 0.16% |
| Other Hispanic or Latino | 67,527 | 6.44% |
| Not Hispanic or Latino | 793,465 | 75.64% |
Hispanic or Latino and Race in Contra Costa County
*Base on 2010 Data
| Total | 1,049,025 | 100.00% |
| Hispanic or Latino | 255,560 | 24.36% |
| White alone | 113,589 | 10.83% |
| Black or African American alone | 3,557 | 0.34% |
| American Indian and Alaska Native alone | 3,138 | 0.30% |
| Asian alone | 2,588 | 0.25% |
| Native Hawaiian and Other Pacific Islander alone | 463 | 0.04% |
| Some Other Race alone | 109,569 | 10.44% |
| Two or More Races | 22,656 | 2.16% |
| Not Hispanic or Latino | 793,465 | 75.64% |
| White alone | 500,923 | 47.75% |
| Black or African American alone | 93,604 | 8.92% |
| American Indian and Alaska Native alone | 2,984 | 0.28% |
| Asian alone | 148,881 | 14.19% |
| Native Hawaiian and Other Pacific Islander alone | 4,382 | 0.42% |
| Some Other Race alone | 3,122 | 0.30% |
| Two or More Races | 39,569 | 3.77% |
Relationship in Contra Costa County
*Base on 2010 Data
| Total | 1,049,025 | 100.00% |
| In households | 1,038,711 | 99.02% |
| Householder | 375,364 | 35.78% |
| Spouse | 199,021 | 18.97% |
| Child | 320,947 | 30.59% |
| Own child under 18 years | 230,670 | 21.99% |
| Other relatives | 80,842 | 7.71% |
| Under 18 years | 24,785 | 2.36% |
| 65 years and over | 13,953 | 1.33% |
| Nonrelatives | 62,537 | 5.96% |
| Under 18 years | 4,241 | 0.40% |
| 65 years and over | 3,582 | 0.34% |
| Unmarried partner | 24,826 | 2.37% |
| In group quarters | 10,314 | 0.98% |
| Institutionalized population | 5,346 | 0.51% |
| Male | 2,800 | 0.27% |
| Female | 2,546 | 0.24% |
| Noninstitutionalized population | 4,968 | 0.47% |
| Male | 2,531 | 0.24% |
| Female | 2,437 | 0.23% |
Households by Type in Contra Costa County
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 375,364 | 100.00% |
| Family households (families) | 265,280 | 70.67% |
| With own children under 18 years | 126,893 | 33.81% |
| Husband-wife family | 199,021 | 53.02% |
| With own children under 18 years | 93,772 | 24.98% |
| Male householder, no wife present | 19,553 | 5.21% |
| With own children under 18 years | 9,284 | 2.47% |
| Female householder, no husband present | 46,706 | 12.44% |
| With own children under 18 years | 23,837 | 6.35% |
| Nonfamily households | 110,084 | 29.33% |
| Householder living alone | 85,055 | 22.66% |
| Male | 34,478 | 9.19% |
| 65 years and over | 8,940 | 2.38% |
| Female | 50,577 | 13.47% |
| 65 years and over | 23,206 | 6.18% |
Households with individuals under 18 years in Contra Costa County
*Base on 2010 Data
| Total | 140,058 | 37.31% |
Households with individuals under 65 years in Contra Costa County
*Base on 2010 Data
| Total | 94,981 | 25.30% |
Average Household Size in Contra Costa County
*Base on 2010 Data
| Average household size | 3 | % |
Average Family Size in Contra Costa County
*Base on 2010 Data
| Average family size | 3 | % |
Housing Occupancy(Total housing units) in Contra Costa County
*Base on 2010 Data
| Total | 400,263 | 100.00% |
| Occupied housing units | 375,364 | 93.78% |
| Vacant housing units | 24,899 | 6.22% |
| For rent | 9,047 | 2.26% |
| Rented, not occupied | 507 | 0.13% |
| For sale only | 5,309 | 1.33% |
| Sold, not occupied | 1,128 | 0.28% |
| For seasonal, recreational, or occasional use | 2,400 | 0.60% |
| All other vacants | 6,508 | 1.63% |
Homeowner Vacancy Rate in Contra Costa County
*Base on 2010 Data
| Homeowner vacancy rate (percent) | 2.10% |
Rental Vacancy Rate in Contra Costa County
*Base on 2010 Data
| Rental vacancy rate (percent) | 6.80% |
Housing Tenure(Occupied housing units) in Contra Costa County
*Base on 2010 Data
| Total | 375,364 | 100.00% |
| Owner-occupied housing units | 251,904 | 67.11% |
| Renter-occupied housing units | 123,460 | 32.89% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in Contra Costa County
*Base on 2010 Data
| Owner-occupied housing units | 700,368 | 67.43% |
| Renter-occupied housing units | 338,343 | 32.57% |
Average Household Size of Occupied Housing Units by Tenure in Contra Costa County
*Base on 2010 Data
| Owner occupied | 3 | % |
| Renter occupied | 3 | % |