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Population by Age in Suffolk County
*Base on 2010 Data
| Total population | 722,023 | 100.00% |
| Under 5 years | 39,574 | 5.48% |
| 5 to 9 years | 32,832 | 4.55% |
| 10 to 14 years | 32,164 | 4.45% |
| 15 to 19 years | 56,225 | 7.79% |
| 20 to 24 years | 95,504 | 13.23% |
| 25 to 29 years | 83,621 | 11.58% |
| 30 to 34 years | 61,780 | 8.56% |
| 35 to 39 years | 48,501 | 6.72% |
| 40 to 44 years | 44,428 | 6.15% |
| 45 to 49 years | 43,423 | 6.01% |
| 50 to 54 years | 41,257 | 5.71% |
| 55 to 59 years | 35,991 | 4.98% |
| 60 to 64 years | 30,997 | 4.29% |
| 65 to 69 years | 22,469 | 3.11% |
| 70 to 74 years | 17,125 | 2.37% |
| 75 to 79 years | 13,573 | 1.88% |
| 80 to 84 years | 11,241 | 1.56% |
| 85 years and over | 11,318 | 1.57% |
Male Population in Suffolk County
*Base on 2010 Data
| Male population | 347,689 | 48.15% |
| Under 5 years | 20,093 | 2.78% |
| 5 to 9 years | 16,709 | 2.31% |
| 10 to 14 years | 16,349 | 2.26% |
| 15 to 19 years | 27,162 | 3.76% |
| 20 to 24 years | 46,084 | 6.38% |
| 25 to 29 years | 40,749 | 5.64% |
| 30 to 34 years | 30,725 | 4.26% |
| 35 to 39 years | 23,990 | 3.32% |
| 40 to 44 years | 22,222 | 3.08% |
| 45 to 49 years | 21,568 | 2.99% |
| 50 to 54 years | 19,888 | 2.75% |
| 55 to 59 years | 17,114 | 2.37% |
| 60 to 64 years | 14,243 | 1.97% |
| 65 to 69 years | 10,239 | 1.42% |
| 70 to 74 years | 7,431 | 1.03% |
| 75 to 79 years | 5,565 | 0.77% |
| 80 to 84 years | 4,127 | 0.57% |
| 85 years and over | 3,431 | 0.48% |
Female Population in Suffolk County
*Base on 2010 Data
| Female population | 374,334 | 51.85% |
| Under 5 years | 19,481 | 2.70% |
| 5 to 9 years | 16,123 | 2.23% |
| 10 to 14 years | 15,815 | 2.19% |
| 15 to 19 years | 29,063 | 4.03% |
| 20 to 24 years | 49,420 | 6.84% |
| 25 to 29 years | 42,872 | 5.94% |
| 30 to 34 years | 31,055 | 4.30% |
| 35 to 39 years | 24,511 | 3.39% |
| 40 to 44 years | 22,206 | 3.08% |
| 45 to 49 years | 21,855 | 3.03% |
| 50 to 54 years | 21,369 | 2.96% |
| 55 to 59 years | 18,877 | 2.61% |
| 60 to 64 years | 16,754 | 2.32% |
| 65 to 69 years | 12,230 | 1.69% |
| 70 to 74 years | 9,694 | 1.34% |
| 75 to 79 years | 8,008 | 1.11% |
| 80 to 84 years | 7,114 | 0.99% |
| 85 years and over | 7,887 | 1.09% |
Median Age in Suffolk County
*Base on 2010 Data
| Both | 31.50% | |
| Male | 30.90% | |
| Female | 32.10% |
Race in Suffolk County
*Base on 2010 Data
| Total | 722,023 | 100.00% |
| Population of one race | 693,581 | 96.06% |
| White | 404,269 | 55.99% |
| Black or African American | 156,292 | 21.65% |
| American Indian and Alaska Native | 2,984 | 0.41% |
| Asian | 59,429 | 8.23% |
| Asian Indian | 7,961 | 1.10% |
| Chinese | 25,437 | 3.52% |
| Filipino | 1,911 | 0.26% |
| Japanese | 1,646 | 0.23% |
| Korean | 4,172 | 0.58% |
| Vietnamese | 12,109 | 1.68% |
| Other Asian | 6,193 | 0.86% |
| Native Hawaiian and Other Pacific Islander | 292 | 0.04% |
| Native Hawaiian | 63 | 0.01% |
| Guamanian or Chamorro | 62 | 0.01% |
| Samoan | 45 | 0.01% |
| Other Pacific Islander | 122 | 0.02% |
| Some Other Race | 70,315 | 9.74% |
| Population of Two or More Races | 28,442 | 3.94% |
| White; American Indian and Alaska Native | 1,261 | 0.17% |
| White; Asian | 3,869 | 0.54% |
| White; Black or African American | 5,146 | 0.71% |
| White; Some Other Race | 6,309 | 0.87% |
The Population 16 Years in Suffolk County
*Base on 2010 Data
| Total | 610,445 | 100.00% |
| Male | 290,924 | 47.66% |
| Female | 319,521 | 52.34% |
The Population 18 Years in Suffolk County
*Base on 2010 Data
| Total | 595,748 | 100.00% |
| Male | 283,525 | 47.59% |
| Female | 312,223 | 52.41% |
The Population 21 Years in Suffolk County
*Base on 2010 Data
| Total | 540,657 | 100.00% |
| Male | 257,346 | 47.60% |
| Female | 283,311 | 52.40% |
The Population 62 Years in Suffolk County
*Base on 2010 Data
| Total | 93,286 | 100.00% |
| Male | 38,863 | 41.66% |
| Female | 54,423 | 58.34% |
The Population 65 Years in Suffolk County
*Base on 2010 Data
| Total | 75,726 | 100.00% |
| Male | 30,793 | 40.66% |
| Female | 44,933 | 59.34% |
Race (total races tallied) in Suffolk County
*Base on 2010 Data
| White alone or in combination with one or more other races | 422,879 | 56.16% |
| Black or African American alone or in combination with one or more other races | 170,795 | 22.68% |
| American Indian and Alaska Native alone or in combination with one or more other races | 7,695 | 1.02% |
| Asian alone or in combination with one or more other races | 65,454 | 8.69% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 1,982 | 0.26% |
| Some Other Race alone or in combination with one or more other races | 84,211 | 11.18% |
Hispanic or Latino by Specific Origin in Suffolk County
*Base on 2010 Data
| Total | 722,023 | 100.00% |
| Hispanic or Latino (of any race) | 143,455 | 19.87% |
| Mexican | 8,028 | 1.11% |
| Puerto Rican | 37,092 | 5.14% |
| Cuban | 2,668 | 0.37% |
| Other Hispanic or Latino | 95,667 | 13.25% |
| Not Hispanic or Latino | 578,568 | 80.13% |
Hispanic or Latino and Race in Suffolk County
*Base on 2010 Data
| Total | 722,023 | 100.00% |
| Hispanic or Latino | 143,455 | 19.87% |
| White alone | 57,290 | 7.93% |
| Black or African American alone | 13,312 | 1.84% |
| American Indian and Alaska Native alone | 1,617 | 0.22% |
| Asian alone | 466 | 0.06% |
| Native Hawaiian and Other Pacific Islander alone | 96 | 0.01% |
| Some Other Race alone | 58,889 | 8.16% |
| Two or More Races | 11,785 | 1.63% |
| Not Hispanic or Latino | 578,568 | 80.13% |
| White alone | 346,979 | 48.06% |
| Black or African American alone | 142,980 | 19.80% |
| American Indian and Alaska Native alone | 1,367 | 0.19% |
| Asian alone | 58,963 | 8.17% |
| Native Hawaiian and Other Pacific Islander alone | 196 | 0.03% |
| Some Other Race alone | 11,426 | 1.58% |
| Two or More Races | 16,657 | 2.31% |
Relationship in Suffolk County
*Base on 2010 Data
| Total | 722,023 | 100.00% |
| In households | 674,795 | 93.46% |
| Householder | 292,767 | 40.55% |
| Spouse | 79,454 | 11.00% |
| Child | 164,826 | 22.83% |
| Own child under 18 years | 108,589 | 15.04% |
| Other relatives | 52,093 | 7.21% |
| Under 18 years | 14,993 | 2.08% |
| 65 years and over | 7,091 | 0.98% |
| Nonrelatives | 85,655 | 11.86% |
| Under 18 years | 1,790 | 0.25% |
| 65 years and over | 1,883 | 0.26% |
| Unmarried partner | 23,729 | 3.29% |
| In group quarters | 47,228 | 6.54% |
| Institutionalized population | 7,495 | 1.04% |
| Male | 4,397 | 0.61% |
| Female | 3,098 | 0.43% |
| Noninstitutionalized population | 39,733 | 5.50% |
| Male | 18,646 | 2.58% |
| Female | 21,087 | 2.92% |
Households by Type in Suffolk County
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 292,767 | 100.00% |
| Family households (families) | 140,412 | 47.96% |
| With own children under 18 years | 62,880 | 21.48% |
| Husband-wife family | 79,454 | 27.14% |
| With own children under 18 years | 31,987 | 10.93% |
| Male householder, no wife present | 13,139 | 4.49% |
| With own children under 18 years | 4,598 | 1.57% |
| Female householder, no husband present | 47,819 | 16.33% |
| With own children under 18 years | 26,295 | 8.98% |
| Nonfamily households | 152,355 | 52.04% |
| Householder living alone | 106,391 | 36.34% |
| Male | 47,704 | 16.29% |
| 65 years and over | 8,911 | 3.04% |
| Female | 58,687 | 20.05% |
| 65 years and over | 18,560 | 6.34% |
Households with individuals under 18 years in Suffolk County
*Base on 2010 Data
| Total | 71,327 | 24.36% |
Households with individuals under 65 years in Suffolk County
*Base on 2010 Data
| Total | 58,299 | 19.91% |
Average Household Size in Suffolk County
*Base on 2010 Data
| Average household size | 2 | % |
Average Family Size in Suffolk County
*Base on 2010 Data
| Average family size | 3 | % |
Housing Occupancy(Total housing units) in Suffolk County
*Base on 2010 Data
| Total | 315,522 | 100.00% |
| Occupied housing units | 292,767 | 92.79% |
| Vacant housing units | 22,755 | 7.21% |
| For rent | 10,580 | 3.35% |
| Rented, not occupied | 703 | 0.22% |
| For sale only | 2,276 | 0.72% |
| Sold, not occupied | 674 | 0.21% |
| For seasonal, recreational, or occasional use | 3,239 | 1.03% |
| All other vacants | 5,283 | 1.67% |
Homeowner Vacancy Rate in Suffolk County
*Base on 2010 Data
| Homeowner vacancy rate (percent) | 2.10% |
Rental Vacancy Rate in Suffolk County
*Base on 2010 Data
| Rental vacancy rate (percent) | 5.30% |
Housing Tenure(Occupied housing units) in Suffolk County
*Base on 2010 Data
| Total | 292,767 | 100.00% |
| Owner-occupied housing units | 103,220 | 35.26% |
| Renter-occupied housing units | 189,547 | 64.74% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in Suffolk County
*Base on 2010 Data
| Owner-occupied housing units | 251,742 | 37.31% |
| Renter-occupied housing units | 423,053 | 62.69% |
Average Household Size of Occupied Housing Units by Tenure in Suffolk County
*Base on 2010 Data
| Owner occupied | 2 | % |
| Renter occupied | 2 | % |