Population by Age in New Castle County
*Base on 2010 Data
| Total population | 538,479 | 100.00% |
| Under 5 years | 33,249 | 6.17% |
| 5 to 9 years | 34,123 | 6.34% |
| 10 to 14 years | 35,040 | 6.51% |
| 15 to 19 years | 40,966 | 7.61% |
| 20 to 24 years | 40,457 | 7.51% |
| 25 to 29 years | 36,305 | 6.74% |
| 30 to 34 years | 34,439 | 6.40% |
| 35 to 39 years | 35,105 | 6.52% |
| 40 to 44 years | 38,193 | 7.09% |
| 45 to 49 years | 41,558 | 7.72% |
| 50 to 54 years | 40,429 | 7.51% |
| 55 to 59 years | 33,990 | 6.31% |
| 60 to 64 years | 28,403 | 5.27% |
| 65 to 69 years | 20,644 | 3.83% |
| 70 to 74 years | 14,851 | 2.76% |
| 75 to 79 years | 12,105 | 2.25% |
| 80 to 84 years | 9,426 | 1.75% |
| 85 years and over | 9,196 | 1.71% |
Male Population in New Castle County
*Base on 2010 Data
| Male population | 260,671 | 48.41% |
| Under 5 years | 16,866 | 3.13% |
| 5 to 9 years | 17,360 | 3.22% |
| 10 to 14 years | 17,854 | 3.32% |
| 15 to 19 years | 20,656 | 3.84% |
| 20 to 24 years | 20,142 | 3.74% |
| 25 to 29 years | 18,101 | 3.36% |
| 30 to 34 years | 16,967 | 3.15% |
| 35 to 39 years | 17,315 | 3.22% |
| 40 to 44 years | 18,356 | 3.41% |
| 45 to 49 years | 20,122 | 3.74% |
| 50 to 54 years | 19,528 | 3.63% |
| 55 to 59 years | 16,073 | 2.98% |
| 60 to 64 years | 13,304 | 2.47% |
| 65 to 69 years | 9,476 | 1.76% |
| 70 to 74 years | 6,660 | 1.24% |
| 75 to 79 years | 5,133 | 0.95% |
| 80 to 84 years | 3,766 | 0.70% |
| 85 years and over | 2,992 | 0.56% |
Female Population in New Castle County
*Base on 2010 Data
| Female population | 277,808 | 51.59% |
| Under 5 years | 16,383 | 3.04% |
| 5 to 9 years | 16,763 | 3.11% |
| 10 to 14 years | 17,186 | 3.19% |
| 15 to 19 years | 20,310 | 3.77% |
| 20 to 24 years | 20,315 | 3.77% |
| 25 to 29 years | 18,204 | 3.38% |
| 30 to 34 years | 17,472 | 3.24% |
| 35 to 39 years | 17,790 | 3.30% |
| 40 to 44 years | 19,837 | 3.68% |
| 45 to 49 years | 21,436 | 3.98% |
| 50 to 54 years | 20,901 | 3.88% |
| 55 to 59 years | 17,917 | 3.33% |
| 60 to 64 years | 15,099 | 2.80% |
| 65 to 69 years | 11,168 | 2.07% |
| 70 to 74 years | 8,191 | 1.52% |
| 75 to 79 years | 6,972 | 1.29% |
| 80 to 84 years | 5,660 | 1.05% |
| 85 years and over | 6,204 | 1.15% |
Median Age in New Castle County
*Base on 2010 Data
| Both | 37.20% | |
| Male | 35.70% | |
| Female | 38.60% |
Race in New Castle County
*Base on 2010 Data
| Total | 538,479 | 100.00% |
| Population of one race | 524,889 | 97.48% |
| White | 352,955 | 65.55% |
| Black or African American | 127,786 | 23.73% |
| American Indian and Alaska Native | 1,574 | 0.29% |
| Asian | 23,300 | 4.33% |
| Asian Indian | 10,222 | 1.90% |
| Chinese | 5,382 | 1.00% |
| Filipino | 1,961 | 0.36% |
| Japanese | 326 | 0.06% |
| Korean | 2,009 | 0.37% |
| Vietnamese | 1,038 | 0.19% |
| Other Asian | 2,362 | 0.44% |
| Native Hawaiian and Other Pacific Islander | 159 | 0.03% |
| Native Hawaiian | 48 | 0.01% |
| Guamanian or Chamorro | 46 | 0.01% |
| Samoan | 25 | 0.00% |
| Other Pacific Islander | 40 | 0.01% |
| Some Other Race | 19,115 | 3.55% |
| Population of Two or More Races | 13,590 | 2.52% |
| White; American Indian and Alaska Native | 1,049 | 0.19% |
| White; Asian | 2,083 | 0.39% |
| White; Black or African American | 4,755 | 0.88% |
| White; Some Other Race | 1,610 | 0.30% |
The Population 16 Years in New Castle County
*Base on 2010 Data
| Total | 428,728 | 100.00% |
| Male | 204,853 | 47.78% |
| Female | 223,875 | 52.22% |
The Population 18 Years in New Castle County
*Base on 2010 Data
| Total | 413,400 | 100.00% |
| Male | 196,947 | 47.64% |
| Female | 216,453 | 52.36% |
The Population 21 Years in New Castle County
*Base on 2010 Data
| Total | 385,735 | 100.00% |
| Male | 183,353 | 47.53% |
| Female | 202,382 | 52.47% |
The Population 62 Years in New Castle County
*Base on 2010 Data
| Total | 82,666 | 100.00% |
| Male | 35,689 | 43.17% |
| Female | 46,977 | 56.83% |
The Population 65 Years in New Castle County
*Base on 2010 Data
| Total | 66,222 | 100.00% |
| Male | 28,027 | 42.32% |
| Female | 38,195 | 57.68% |
Race (total races tallied) in New Castle County
*Base on 2010 Data
| White alone or in combination with one or more other races | 363,457 | 65.71% |
| Black or African American alone or in combination with one or more other races | 135,735 | 24.54% |
| American Indian and Alaska Native alone or in combination with one or more other races | 4,469 | 0.81% |
| Asian alone or in combination with one or more other races | 26,633 | 4.81% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 568 | 0.10% |
| Some Other Race alone or in combination with one or more other races | 22,286 | 4.03% |
Hispanic or Latino by Specific Origin in New Castle County
*Base on 2010 Data
| Total | 538,479 | 100.00% |
| Hispanic or Latino (of any race) | 46,921 | 8.71% |
| Mexican | 20,630 | 3.83% |
| Puerto Rican | 16,326 | 3.03% |
| Cuban | 1,022 | 0.19% |
| Other Hispanic or Latino | 8,943 | 1.66% |
| Not Hispanic or Latino | 491,558 | 91.29% |
Hispanic or Latino and Race in New Castle County
*Base on 2010 Data
| Total | 538,479 | 100.00% |
| Hispanic or Latino | 46,921 | 8.71% |
| White alone | 21,119 | 3.92% |
| Black or African American alone | 3,360 | 0.62% |
| American Indian and Alaska Native alone | 590 | 0.11% |
| Asian alone | 168 | 0.03% |
| Native Hawaiian and Other Pacific Islander alone | 57 | 0.01% |
| Some Other Race alone | 18,242 | 3.39% |
| Two or More Races | 3,385 | 0.63% |
| Not Hispanic or Latino | 491,558 | 91.29% |
| White alone | 331,836 | 61.62% |
| Black or African American alone | 124,426 | 23.11% |
| American Indian and Alaska Native alone | 984 | 0.18% |
| Asian alone | 23,132 | 4.30% |
| Native Hawaiian and Other Pacific Islander alone | 102 | 0.02% |
| Some Other Race alone | 873 | 0.16% |
| Two or More Races | 10,205 | 1.90% |
Relationship in New Castle County
*Base on 2010 Data
| Total | 538,479 | 100.00% |
| In households | 521,325 | 96.81% |
| Householder | 202,651 | 37.63% |
| Spouse | 94,343 | 17.52% |
| Child | 154,234 | 28.64% |
| Own child under 18 years | 107,943 | 20.05% |
| Other relatives | 35,714 | 6.63% |
| Under 18 years | 14,375 | 2.67% |
| 65 years and over | 5,211 | 0.97% |
| Nonrelatives | 34,383 | 6.39% |
| Under 18 years | 2,049 | 0.38% |
| 65 years and over | 1,250 | 0.23% |
| Unmarried partner | 14,385 | 2.67% |
| In group quarters | 17,154 | 3.19% |
| Institutionalized population | 7,943 | 1.48% |
| Male | 5,654 | 1.05% |
| Female | 2,289 | 0.43% |
| Noninstitutionalized population | 9,211 | 1.71% |
| Male | 4,227 | 0.78% |
| Female | 4,984 | 0.93% |
Households by Type in New Castle County
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 202,651 | 100.00% |
| Family households (families) | 134,743 | 66.49% |
| With own children under 18 years | 60,230 | 29.72% |
| Husband-wife family | 94,343 | 46.55% |
| With own children under 18 years | 39,383 | 19.43% |
| Male householder, no wife present | 10,235 | 5.05% |
| With own children under 18 years | 4,854 | 2.40% |
| Female householder, no husband present | 30,165 | 14.89% |
| With own children under 18 years | 15,993 | 7.89% |
| Nonfamily households | 67,908 | 33.51% |
| Householder living alone | 52,987 | 26.15% |
| Male | 22,487 | 11.10% |
| 65 years and over | 5,199 | 2.57% |
| Female | 30,500 | 15.05% |
| 65 years and over | 12,890 | 6.36% |
Households with individuals under 18 years in New Castle County
*Base on 2010 Data
| Total | 68,514 | 33.81% |
Households with individuals under 65 years in New Castle County
*Base on 2010 Data
| Total | 48,143 | 23.76% |
Average Household Size in New Castle County
*Base on 2010 Data
| Average household size | 3 | % |
Average Family Size in New Castle County
*Base on 2010 Data
| Average family size | 3 | % |
Housing Occupancy(Total housing units) in New Castle County
*Base on 2010 Data
| Total | 217,511 | 100.00% |
| Occupied housing units | 202,651 | 93.17% |
| Vacant housing units | 14,860 | 6.83% |
| For rent | 6,744 | 3.10% |
| Rented, not occupied | 290 | 0.13% |
| For sale only | 2,386 | 1.10% |
| Sold, not occupied | 473 | 0.22% |
| For seasonal, recreational, or occasional use | 712 | 0.33% |
| All other vacants | 4,255 | 1.96% |
Homeowner Vacancy Rate in New Castle County
*Base on 2010 Data
| Homeowner vacancy rate (percent) | 1.70% |
Rental Vacancy Rate in New Castle County
*Base on 2010 Data
| Rental vacancy rate (percent) | 9.90% |
Housing Tenure(Occupied housing units) in New Castle County
*Base on 2010 Data
| Total | 202,651 | 100.00% |
| Owner-occupied housing units | 141,325 | 69.74% |
| Renter-occupied housing units | 61,326 | 30.26% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in New Castle County
*Base on 2010 Data
| Owner-occupied housing units | 374,045 | 71.75% |
| Renter-occupied housing units | 147,280 | 28.25% |
Average Household Size of Occupied Housing Units by Tenure in New Castle County
*Base on 2010 Data
| Owner occupied | 3 | % |
| Renter occupied | 2 | % |