Population by Age in Holtsville
*Base on 2010 Data
| Total population | 19,714 | 100.00% |
| Under 5 years | 1,077 | 5.46% |
| 5 to 9 years | 1,306 | 6.62% |
| 10 to 14 years | 1,552 | 7.87% |
| 15 to 19 years | 1,374 | 6.97% |
| 20 to 24 years | 1,131 | 5.74% |
| 25 to 29 years | 1,018 | 5.16% |
| 30 to 34 years | 1,213 | 6.15% |
| 35 to 39 years | 1,412 | 7.16% |
| 40 to 44 years | 1,707 | 8.66% |
| 45 to 49 years | 1,881 | 9.54% |
| 50 to 54 years | 1,468 | 7.45% |
| 55 to 59 years | 1,215 | 6.16% |
| 60 to 64 years | 1,119 | 5.68% |
| 65 to 69 years | 844 | 4.28% |
| 70 to 74 years | 479 | 2.43% |
| 75 to 79 years | 357 | 1.81% |
| 80 to 84 years | 302 | 1.53% |
| 85 years and over | 259 | 1.31% |
Male Population in Holtsville
*Base on 2010 Data
| Male population | 9,524 | 48.31% |
| Under 5 years | 551 | 2.79% |
| 5 to 9 years | 604 | 3.06% |
| 10 to 14 years | 768 | 3.90% |
| 15 to 19 years | 711 | 3.61% |
| 20 to 24 years | 588 | 2.98% |
| 25 to 29 years | 522 | 2.65% |
| 30 to 34 years | 591 | 3.00% |
| 35 to 39 years | 656 | 3.33% |
| 40 to 44 years | 838 | 4.25% |
| 45 to 49 years | 919 | 4.66% |
| 50 to 54 years | 743 | 3.77% |
| 55 to 59 years | 567 | 2.88% |
| 60 to 64 years | 515 | 2.61% |
| 65 to 69 years | 381 | 1.93% |
| 70 to 74 years | 222 | 1.13% |
| 75 to 79 years | 149 | 0.76% |
| 80 to 84 years | 125 | 0.63% |
| 85 years and over | 74 | 0.38% |
Female Population in Holtsville
*Base on 2010 Data
| Female population | 10,190 | 51.69% |
| Under 5 years | 526 | 2.67% |
| 5 to 9 years | 702 | 3.56% |
| 10 to 14 years | 784 | 3.98% |
| 15 to 19 years | 663 | 3.36% |
| 20 to 24 years | 543 | 2.75% |
| 25 to 29 years | 496 | 2.52% |
| 30 to 34 years | 622 | 3.16% |
| 35 to 39 years | 756 | 3.83% |
| 40 to 44 years | 869 | 4.41% |
| 45 to 49 years | 962 | 4.88% |
| 50 to 54 years | 725 | 3.68% |
| 55 to 59 years | 648 | 3.29% |
| 60 to 64 years | 604 | 3.06% |
| 65 to 69 years | 463 | 2.35% |
| 70 to 74 years | 257 | 1.30% |
| 75 to 79 years | 208 | 1.06% |
| 80 to 84 years | 177 | 0.90% |
| 85 years and over | 185 | 0.94% |
Median Age in Holtsville
*Base on 2010 Data
| Both | 39.30% | |
| Male | 38.50% | |
| Female | 40.00% |
Race in Holtsville
*Base on 2010 Data
| Total | 19,714 | 100.00% |
| Population of one race | 19,431 | 98.56% |
| White | 17,782 | 90.20% |
| Black or African American | 364 | 1.85% |
| American Indian and Alaska Native | 32 | 0.16% |
| Asian | 865 | 4.39% |
| Asian Indian | 354 | 1.80% |
| Chinese | 173 | 0.88% |
| Filipino | 61 | 0.31% |
| Japanese | 9 | 0.05% |
| Korean | 68 | 0.34% |
| Vietnamese | 35 | 0.18% |
| Other Asian | 165 | 0.84% |
| Native Hawaiian and Other Pacific Islander | 5 | 0.03% |
| Native Hawaiian | 0 | 0.00% |
| Guamanian or Chamorro | 4 | 0.02% |
| Samoan | 0 | 0.00% |
| Other Pacific Islander | 1 | 0.01% |
| Some Other Race | 383 | 1.94% |
| Population of Two or More Races | 283 | 1.44% |
| White; American Indian and Alaska Native | 19 | 0.10% |
| White; Asian | 63 | 0.32% |
| White; Black or African American | 64 | 0.32% |
| White; Some Other Race | 84 | 0.43% |
The Population 16 Years in Holtsville
*Base on 2010 Data
| Total | 15,490 | 100.00% |
| Male | 7,440 | 48.03% |
| Female | 8,050 | 51.97% |
The Population 18 Years in Holtsville
*Base on 2010 Data
| Total | 14,873 | 100.00% |
| Male | 7,136 | 47.98% |
| Female | 7,737 | 52.02% |
The Population 21 Years in Holtsville
*Base on 2010 Data
| Total | 14,167 | 100.00% |
| Male | 6,759 | 47.71% |
| Female | 7,408 | 52.29% |
The Population 62 Years in Holtsville
*Base on 2010 Data
| Total | 2,869 | 100.00% |
| Male | 1,232 | 42.94% |
| Female | 1,637 | 57.06% |
The Population 65 Years in Holtsville
*Base on 2010 Data
| Total | 2,241 | 100.00% |
| Male | 951 | 42.44% |
| Female | 1,290 | 57.56% |
Race (total races tallied) in Holtsville
*Base on 2010 Data
| White alone or in combination with one or more other races | 18,014 | 90.06% |
| Black or African American alone or in combination with one or more other races | 454 | 2.27% |
| American Indian and Alaska Native alone or in combination with one or more other races | 55 | 0.27% |
| Asian alone or in combination with one or more other races | 965 | 4.82% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 12 | 0.06% |
| Some Other Race alone or in combination with one or more other races | 503 | 2.51% |
Hispanic or Latino by Specific Origin in Holtsville
*Base on 2010 Data
| Total | 19,714 | 100.00% |
| Hispanic or Latino (of any race) | 1,990 | 10.09% |
| Mexican | 237 | 1.20% |
| Puerto Rican | 826 | 4.19% |
| Cuban | 72 | 0.37% |
| Other Hispanic or Latino | 855 | 4.34% |
| Not Hispanic or Latino | 17,724 | 89.91% |
Hispanic or Latino and Race in Holtsville
*Base on 2010 Data
| Total | 19,714 | 100.00% |
| Hispanic or Latino | 1,990 | 10.09% |
| White alone | 1,473 | 7.47% |
| Black or African American alone | 38 | 0.19% |
| American Indian and Alaska Native alone | 14 | 0.07% |
| Asian alone | 6 | 0.03% |
| Native Hawaiian and Other Pacific Islander alone | 1 | 0.01% |
| Some Other Race alone | 351 | 1.78% |
| Two or More Races | 107 | 0.54% |
| Not Hispanic or Latino | 17,724 | 89.91% |
| White alone | 16,309 | 82.73% |
| Black or African American alone | 326 | 1.65% |
| American Indian and Alaska Native alone | 18 | 0.09% |
| Asian alone | 859 | 4.36% |
| Native Hawaiian and Other Pacific Islander alone | 4 | 0.02% |
| Some Other Race alone | 32 | 0.16% |
| Two or More Races | 176 | 0.89% |
Relationship in Holtsville
*Base on 2010 Data
| Total | 19,714 | 100.00% |
| In households | 19,667 | 99.76% |
| Householder | 6,725 | 34.11% |
| Spouse | 4,175 | 21.18% |
| Child | 6,753 | 34.25% |
| Own child under 18 years | 4,477 | 22.71% |
| Other relatives | 1,213 | 6.15% |
| Under 18 years | 313 | 1.59% |
| 65 years and over | 354 | 1.80% |
| Nonrelatives | 801 | 4.06% |
| Under 18 years | 51 | 0.26% |
| 65 years and over | 46 | 0.23% |
| Unmarried partner | 357 | 1.81% |
| In group quarters | 47 | 0.24% |
| Institutionalized population | 0 | 0.00% |
| Male | 0 | 0.00% |
| Female | 0 | 0.00% |
| Noninstitutionalized population | 47 | 0.24% |
| Male | 34 | 0.17% |
| Female | 13 | 0.07% |
Households by Type in Holtsville
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 6,725 | 100.00% |
| Family households (families) | 5,147 | 76.54% |
| With own children under 18 years | 2,471 | 36.74% |
| Husband-wife family | 4,175 | 62.08% |
| With own children under 18 years | 2,058 | 30.60% |
| Male householder, no wife present | 262 | 3.90% |
| With own children under 18 years | 87 | 1.29% |
| Female householder, no husband present | 710 | 10.56% |
| With own children under 18 years | 326 | 4.85% |
| Nonfamily households | 1,578 | 23.46% |
| Householder living alone | 1,282 | 19.06% |
| Male | 481 | 7.15% |
| 65 years and over | 113 | 1.68% |
| Female | 801 | 11.91% |
| 65 years and over | 401 | 5.96% |
Households with individuals under 18 years in Holtsville
*Base on 2010 Data
| Total | 2,660 | 39.55% |
Households with individuals under 65 years in Holtsville
*Base on 2010 Data
| Total | 1,661 | 24.70% |
Average Household Size in Holtsville
*Base on 2010 Data
| Average household size | 3 | % |
Average Family Size in Holtsville
*Base on 2010 Data
| Average family size | 3 | % |
Housing Occupancy(Total housing units) in Holtsville
*Base on 2010 Data
| Total | 6,929 | 100.00% |
| Occupied housing units | 6,725 | 97.06% |
| Vacant housing units | 204 | 2.94% |
| For rent | 81 | 1.17% |
| Rented, not occupied | 2 | 0.03% |
| For sale only | 41 | 0.59% |
| Sold, not occupied | 11 | 0.16% |
| For seasonal, recreational, or occasional use | 17 | 0.25% |
| All other vacants | 52 | 0.75% |
Homeowner Vacancy Rate in Holtsville
*Base on 2010 Data
| Homeowner vacancy rate (percent) | .70% |
Rental Vacancy Rate in Holtsville
*Base on 2010 Data
| Rental vacancy rate (percent) | 6.10% |
Housing Tenure(Occupied housing units) in Holtsville
*Base on 2010 Data
| Total | 6,725 | 100.00% |
| Owner-occupied housing units | 5,477 | 81.44% |
| Renter-occupied housing units | 1,248 | 18.56% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in Holtsville
*Base on 2010 Data
| Owner-occupied housing units | 16,763 | 85.23% |
| Renter-occupied housing units | 2,904 | 14.77% |
Average Household Size of Occupied Housing Units by Tenure in Holtsville
*Base on 2010 Data
| Owner occupied | 3 | % |
| Renter occupied | 2 | % |