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Population by Age in Castaic
*Base on 2010 Data
| Total population | 19,015 | 100.00% |
| Under 5 years | 1,291 | 6.79% |
| 5 to 9 years | 1,562 | 8.21% |
| 10 to 14 years | 1,812 | 9.53% |
| 15 to 19 years | 1,749 | 9.20% |
| 20 to 24 years | 1,064 | 5.60% |
| 25 to 29 years | 900 | 4.73% |
| 30 to 34 years | 966 | 5.08% |
| 35 to 39 years | 1,468 | 7.72% |
| 40 to 44 years | 1,810 | 9.52% |
| 45 to 49 years | 1,860 | 9.78% |
| 50 to 54 years | 1,614 | 8.49% |
| 55 to 59 years | 1,148 | 6.04% |
| 60 to 64 years | 680 | 3.58% |
| 65 to 69 years | 418 | 2.20% |
| 70 to 74 years | 286 | 1.50% |
| 75 to 79 years | 169 | 0.89% |
| 80 to 84 years | 120 | 0.63% |
| 85 years and over | 98 | 0.52% |
Male Population in Castaic
*Base on 2010 Data
| Male population | 9,566 | 50.31% |
| Under 5 years | 654 | 3.44% |
| 5 to 9 years | 805 | 4.23% |
| 10 to 14 years | 927 | 4.88% |
| 15 to 19 years | 925 | 4.86% |
| 20 to 24 years | 574 | 3.02% |
| 25 to 29 years | 459 | 2.41% |
| 30 to 34 years | 452 | 2.38% |
| 35 to 39 years | 702 | 3.69% |
| 40 to 44 years | 885 | 4.65% |
| 45 to 49 years | 932 | 4.90% |
| 50 to 54 years | 839 | 4.41% |
| 55 to 59 years | 593 | 3.12% |
| 60 to 64 years | 334 | 1.76% |
| 65 to 69 years | 197 | 1.04% |
| 70 to 74 years | 138 | 0.73% |
| 75 to 79 years | 73 | 0.38% |
| 80 to 84 years | 46 | 0.24% |
| 85 years and over | 31 | 0.16% |
Female Population in Castaic
*Base on 2010 Data
| Female population | 9,449 | 49.69% |
| Under 5 years | 637 | 3.35% |
| 5 to 9 years | 757 | 3.98% |
| 10 to 14 years | 885 | 4.65% |
| 15 to 19 years | 824 | 4.33% |
| 20 to 24 years | 490 | 2.58% |
| 25 to 29 years | 441 | 2.32% |
| 30 to 34 years | 514 | 2.70% |
| 35 to 39 years | 766 | 4.03% |
| 40 to 44 years | 925 | 4.86% |
| 45 to 49 years | 928 | 4.88% |
| 50 to 54 years | 775 | 4.08% |
| 55 to 59 years | 555 | 2.92% |
| 60 to 64 years | 346 | 1.82% |
| 65 to 69 years | 221 | 1.16% |
| 70 to 74 years | 148 | 0.78% |
| 75 to 79 years | 96 | 0.50% |
| 80 to 84 years | 74 | 0.39% |
| 85 years and over | 67 | 0.35% |
Median Age in Castaic
*Base on 2010 Data
| Both | 35.60% | |
| Male | 34.90% | |
| Female | 36.30% |
Race in Castaic
*Base on 2010 Data
| Total | 19,015 | 100.00% |
| Population of one race | 18,010 | 94.71% |
| White | 13,607 | 71.56% |
| Black or African American | 630 | 3.31% |
| American Indian and Alaska Native | 119 | 0.63% |
| Asian | 2,162 | 11.37% |
| Asian Indian | 187 | 0.98% |
| Chinese | 182 | 0.96% |
| Filipino | 1,081 | 5.68% |
| Japanese | 94 | 0.49% |
| Korean | 284 | 1.49% |
| Vietnamese | 109 | 0.57% |
| Other Asian | 225 | 1.18% |
| Native Hawaiian and Other Pacific Islander | 26 | 0.14% |
| Native Hawaiian | 7 | 0.04% |
| Guamanian or Chamorro | 6 | 0.03% |
| Samoan | 3 | 0.02% |
| Other Pacific Islander | 10 | 0.05% |
| Some Other Race | 1,466 | 7.71% |
| Population of Two or More Races | 1,005 | 5.29% |
| White; American Indian and Alaska Native | 111 | 0.58% |
| White; Asian | 349 | 1.84% |
| White; Black or African American | 130 | 0.68% |
| White; Some Other Race | 232 | 1.22% |
The Population 16 Years in Castaic
*Base on 2010 Data
| Total | 14,012 | 100.00% |
| Male | 7,009 | 50.02% |
| Female | 7,003 | 49.98% |
The Population 18 Years in Castaic
*Base on 2010 Data
| Total | 13,254 | 100.00% |
| Male | 6,622 | 49.96% |
| Female | 6,632 | 50.04% |
The Population 21 Years in Castaic
*Base on 2010 Data
| Total | 12,338 | 100.00% |
| Male | 6,110 | 49.52% |
| Female | 6,228 | 50.48% |
The Population 62 Years in Castaic
*Base on 2010 Data
| Total | 1,483 | 100.00% |
| Male | 683 | 46.06% |
| Female | 800 | 53.94% |
The Population 65 Years in Castaic
*Base on 2010 Data
| Total | 1,091 | 100.00% |
| Male | 485 | 44.45% |
| Female | 606 | 55.55% |
Race (total races tallied) in Castaic
*Base on 2010 Data
| White alone or in combination with one or more other races | 14,520 | 72.16% |
| Black or African American alone or in combination with one or more other races | 819 | 4.07% |
| American Indian and Alaska Native alone or in combination with one or more other races | 291 | 1.45% |
| Asian alone or in combination with one or more other races | 2,631 | 13.08% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 88 | 0.44% |
| Some Other Race alone or in combination with one or more other races | 1,772 | 8.81% |
Hispanic or Latino by Specific Origin in Castaic
*Base on 2010 Data
| Total | 19,015 | 100.00% |
| Hispanic or Latino (of any race) | 4,716 | 24.80% |
| Mexican | 3,247 | 17.08% |
| Puerto Rican | 172 | 0.90% |
| Cuban | 110 | 0.58% |
| Other Hispanic or Latino | 1,187 | 6.24% |
| Not Hispanic or Latino | 14,299 | 75.20% |
Hispanic or Latino and Race in Castaic
*Base on 2010 Data
| Total | 19,015 | 100.00% |
| Hispanic or Latino | 4,716 | 24.80% |
| White alone | 2,743 | 14.43% |
| Black or African American alone | 41 | 0.22% |
| American Indian and Alaska Native alone | 74 | 0.39% |
| Asian alone | 39 | 0.21% |
| Native Hawaiian and Other Pacific Islander alone | 3 | 0.02% |
| Some Other Race alone | 1,437 | 7.56% |
| Two or More Races | 379 | 1.99% |
| Not Hispanic or Latino | 14,299 | 75.20% |
| White alone | 10,864 | 57.13% |
| Black or African American alone | 589 | 3.10% |
| American Indian and Alaska Native alone | 45 | 0.24% |
| Asian alone | 2,123 | 11.16% |
| Native Hawaiian and Other Pacific Islander alone | 23 | 0.12% |
| Some Other Race alone | 29 | 0.15% |
| Two or More Races | 626 | 3.29% |
Relationship in Castaic
*Base on 2010 Data
| Total | 19,015 | 100.00% |
| In households | 18,946 | 99.64% |
| Householder | 5,751 | 30.24% |
| Spouse | 3,943 | 20.74% |
| Child | 7,256 | 38.16% |
| Own child under 18 years | 5,340 | 28.08% |
| Other relatives | 1,214 | 6.38% |
| Under 18 years | 339 | 1.78% |
| 65 years and over | 301 | 1.58% |
| Nonrelatives | 782 | 4.11% |
| Under 18 years | 79 | 0.42% |
| 65 years and over | 36 | 0.19% |
| Unmarried partner | 317 | 1.67% |
| In group quarters | 69 | 0.36% |
| Institutionalized population | 0 | 0.00% |
| Male | 0 | 0.00% |
| Female | 0 | 0.00% |
| Noninstitutionalized population | 69 | 0.36% |
| Male | 42 | 0.22% |
| Female | 27 | 0.14% |
Households by Type in Castaic
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 5,751 | 100.00% |
| Family households (families) | 4,838 | 84.12% |
| With own children under 18 years | 2,859 | 49.71% |
| Husband-wife family | 3,943 | 68.56% |
| With own children under 18 years | 2,362 | 41.07% |
| Male householder, no wife present | 313 | 5.44% |
| With own children under 18 years | 180 | 3.13% |
| Female householder, no husband present | 582 | 10.12% |
| With own children under 18 years | 317 | 5.51% |
| Nonfamily households | 913 | 15.88% |
| Householder living alone | 650 | 11.30% |
| Male | 367 | 6.38% |
| 65 years and over | 54 | 0.94% |
| Female | 283 | 4.92% |
| 65 years and over | 116 | 2.02% |
Households with individuals under 18 years in Castaic
*Base on 2010 Data
| Total | 3,047 | 52.98% |
Households with individuals under 65 years in Castaic
*Base on 2010 Data
| Total | 837 | 14.55% |
Average Household Size in Castaic
*Base on 2010 Data
| Average household size | 3 | % |
Average Family Size in Castaic
*Base on 2010 Data
| Average family size | 4 | % |
Housing Occupancy(Total housing units) in Castaic
*Base on 2010 Data
| Total | 5,932 | 100.00% |
| Occupied housing units | 5,751 | 96.95% |
| Vacant housing units | 181 | 3.05% |
| For rent | 66 | 1.11% |
| Rented, not occupied | 5 | 0.08% |
| For sale only | 58 | 0.98% |
| Sold, not occupied | 13 | 0.22% |
| For seasonal, recreational, or occasional use | 18 | 0.30% |
| All other vacants | 21 | 0.35% |
Homeowner Vacancy Rate in Castaic
*Base on 2010 Data
| Homeowner vacancy rate (percent) | 1.20% |
Rental Vacancy Rate in Castaic
*Base on 2010 Data
| Rental vacancy rate (percent) | 6.70% |
Housing Tenure(Occupied housing units) in Castaic
*Base on 2010 Data
| Total | 5,751 | 100.00% |
| Owner-occupied housing units | 4,843 | 84.21% |
| Renter-occupied housing units | 908 | 15.79% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in Castaic
*Base on 2010 Data
| Owner-occupied housing units | 16,231 | 85.67% |
| Renter-occupied housing units | 2,715 | 14.33% |
Average Household Size of Occupied Housing Units by Tenure in Castaic
*Base on 2010 Data
| Owner occupied | 3 | % |
| Renter occupied | 3 | % |