New Castle County, Delaware Population 2022
New Castle County, Delaware's estimated population is 562,362 with a growth rate of 0.21% in the past year according to the most recent United States census data. New Castle County, Delaware is the 2nd largest county in Delaware. The 2010 Population was 538,752 and has seen a growth of 4.38% since this time.
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2022 | 562,362 | 1,203 | 0.21% |
| 2021 | 561,159 | 1,203 | 0.21% |
| 2020 | 559,956 | 1,203 | 0.22% |
| 2019 | 558,753 | 1,203 | 0.22% |
| 2018 | 557,550 | 1,574 | 0.28% |
| 2017 | 555,976 | 918 | 0.17% |
| 2016 | 555,058 | 1,570 | 0.28% |
| 2015 | 553,488 | 2,720 | 0.49% |
| 2014 | 550,768 | 2,437 | 0.44% |
| 2013 | 548,331 | 3,483 | 0.64% |
| 2012 | 544,848 | 2,939 | 0.54% |
| 2011 | 541,909 | 3,157 | 0.59% |
| 2010 | 538,752 | 96,806 | 21.90% |
| 1990 | 441,946 | 43,831 | 11.01% |
| 1980 | 398,115 | 12,259 | 3.18% |
| 1970 | 385,856 | 78,410 | 25.50% |
| 1960 | 307,446 | 88,567 | 40.46% |
| 1950 | 218,879 | 39,317 | 21.90% |
| 1940 | 179,562 | 18,530 | 11.51% |
| 1930 | 161,032 | 12,793 | 8.63% |
| 1920 | 148,239 | 25,051 | 20.34% |
| 1910 | 123,188 | 13,491 | 12.30% |
| 1900 | 109,697 | 12,515 | 12.88% |
| 1890 | 97,182 | 19,466 | 25.05% |
| 1880 | 77,716 | 14,201 | 22.36% |
| 1870 | 63,515 | 8,718 | 15.91% |
| 1860 | 54,797 | 12,017 | 28.09% |
| 1850 | 42,780 | 9,660 | 29.17% |
| 1840 | 33,120 | 3,400 | 11.44% |
| 1830 | 29,720 | 1,821 | 6.53% |
| 1820 | 27,899 | 3,470 | 14.20% |
| 1810 | 24,429 | -932 | -3.67% |
| 1800 | 25,361 | 5,673 | 28.81% |
| 1790 | 19,688 | 0.00% |
Population by Race
| Race | Population | Percentage |
|---|---|---|
| White | 357,185 | 64.22% |
| Black or African American | 139,960 | 25.17% |
| Asian | 30,704 | 5.52% |
| Two or More Races | 14,594 | 2.62% |
| Some Other Race | 11,877 | 2.14% |
| American Indian and Alaska Native | 1,663 | 0.30% |
| Native Hawaiian and Other Pacific Islander | 182 | 0.03% |
New Castle County, Delaware Population Pyramid $2022
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 205,829 | 2.62 | 67.9 |
| Married | 95,520 | 3.27 | 84.1 |
| Non Family | 73,615 | 1.3 | 53.2 |
| Female | 26,851 | 3.56 | 53.5 |
| Male | 9,843 | 3.61 | 59.4 |
3.27
Average Family Size
2.62
Average Household Size
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 11,498 | 3.00% |
| 9th to 12th Grade | 20,534 | 5.36% |
| High School Graduate | 118,233 | 30.84% |
| Some College | 67,553 | 17.62% |
| Associates Degree | 26,881 | 7.01% |
| Bachelors Degree | 80,158 | 20.91% |
| Graduate Degree | 58,469 | 15.25% |
New Castle County, Delaware Educational Attainment by Race
| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 237,228 | 225,170 | 94,126 |
| Black | 91,358 | 83,734 | 23,237 |
| Hispanic | 29,941 | 19,229 | 4,822 |
| Asian | 21,030 | 19,567 | 14,632 |
| Other Race | 6,882 | 4,345 | 881 |
| 2+ Races | 5,116 | 4,641 | 2,096 |
| Native American | 1,175 | 959 | 298 |
| Islander | 128 | 113 | 11 |
The highest rate of high school graduation is among white people with a rate of 94.92%.
The highest rate of bachelors degrees is among asian people with a rate of 69.58%.
$47,152
Average Earnings
$53,204
Average Male
$40,967
Average Female
New Castle County, Delaware Language by Age
New Castle County, Delaware Language
84.93% of New Castle County, Delaware residents speak only English, while 15.07% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 7.62% of the population.
New Castle County, Delaware Poverty by Race
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| Black | 134,733 | 24,138 | 17.92% |
| White | 309,535 | 22,303 | 7.21% |
| Hispanic | 53,949 | 10,413 | 19.30% |
| Asian | 30,266 | 3,359 | 11.10% |
| Other | 2,582 | NaN% | |
| Multiple | 14,281 | 2,050 | 14.35% |
| Native | 1,633 | 197 | 12.06% |
| Islander | 176 | 10 | 5.68% |
11.38%
Overall Poverty Rate
10.27%
Male Poverty Rate
12.40%
Female Poverty Rate
Poverty in New Castle County, Delaware
The race most likely to be in poverty in New Castle County, Delaware is Hispanic, with 19.30% below the poverty level.
The race least likely to be in poverty in New Castle County, Delaware is Other, with NaN% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.70%. Among those working part-time, it was 15.49%, and for those that did not work, the poverty rate was 19.21%.
New Castle County, Delaware Marital Status
Marriage Rates
45.0%
Overall Marriage Rate
47.5%
Male Marriage Rate
42.8%
Female Marriage Rate
New Castle County, Delaware Married by Age and Sex
New Castle County, Delaware Marriage
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.
New Castle County, Delaware Marital Status by Race
| Name | Veterans | % of Total |
|---|---|---|
| White | 20,727 | 7.17% |
| Black | 8,445 | 8.04% |
| Hispanic | 1,278 | 3.54% |
| 2+ Races | 343 | 4.73% |
| Asian | 319 | 1.34% |
| Other Race | 119 | 1.45% |
| Native American | 87 | 6.38% |
| Islander | 3 | 2.27% |
New Castle County, Delaware Veterans by Education
6.21%
Veteran Poverty Rate
23.91%
Veteran Disability Rate
65.4%
Labor Force Participation
61.4%
Employment Rate
5.9%
Unemployment Rate
Origin of Non-Citizens
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
46.16%
Born in New Castle County, Delaware
88.48%
Native Born
11.52%
Foreign Born
5.96%
Non Citizen
5.56%
Naturalized
Place of Birth
88.48% of New Castle County, Delaware residents were born in the United States, with 46.16% having been born in Delaware. 5.96% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990