United States › Delaware › New Castle CITY
New Castle Delaware · 5,726 residents (2025 est.) · 3.48 sq mi
Time machine
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The short version
With 5,579 people, New Castle is a city in Delaware. At a median age of 48.5, this is an older place than the country as a whole. The poverty rate is 4.7%, under the national 12.5%. Density works out to 1,604 people per square mile. The population is up 15% since 2000. Home values have more than doubled since 2000, reaching $285,100.
At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 48.5
US median: 38.9
Average education
34% hold a bachelor's degree
US average: 36%
Less affordable
home values up 29%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 4,862 in 2000
5,726 in 2025 (Census Bureau estimate)
1,604 / sq mi
+12%since 2009
from 1,434 / sq mi in 2009
US average: 281
from 39.6 in 2000
US average: 38.9
Population, 1990 – 2024
5K 5K 5K 5K 6K 1990 2000 2010 2020 2024 New Castle Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $89,205
−7%inflation adjusted, since 2000
from $52,449 in 2000
US average: $82,259
from $24,052 in 2000
US average: $44,673
Households earning $100K+
from 36.0% in 2009
US average: 53.3%
from 5.3% in 2000
US average: 12.5%
from 0.397 in 2010
US average: 0.476
Workforce by industry, 2024
Public administration 6.9%
Professional, scientific, technical 6.9%
Arts, entertainment, food 2.6%
Education & health services 1.1%
Transportation & warehousing 0.4%
Agriculture, forestry, fishing 0%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$285,100
+29%inflation adjusted, since 2000
from $121,600 in 2000
US average: $376,019
$1,739
+49%inflation adjusted, since 2000
from $640 in 2000
US average: $1,442
from 78.0% in 2000
36.6% rent
from 5.3% in 2009
US average: 10.0%
2.01 people
−15%since 2009
from 2.37 people in 2009
US average: 2.54
from 28.2% in 2009
US average: 22.9%
from 33.7% in 2009
US average: 47.4%
from 3.8 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 76.3%(3,708)
Hispanic / Latino 2.4%(117)
2024
White, non-Hispanic 60.4%(3,369)
Hispanic / Latino 8.1%(454)
from 57 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 15 more ancestry groups with data from 26.4% in 2000
US average: 35.6%
High school or higher
from 82.6% in 2000
US average: 89.6%
from 9.7% in 2000
US average: 14.0%
Section 06
Commute & transportation from 13.8 min in 2000
US average: 26.5
from 84.8% in 2009
US average: 68.9%
from 6.0% in 2009
US average: 8.5%
from 5.4% in 2009
US average: 3.2%
from 1.9% in 2009
US average: 15.0%
from 1.6% in 2009
US average: 2.4%
from 0.0% in 2009
US average: 0.4%
from 4.8% in 2009
US average: 8.3%
Section 07
Work & employment from 9.7% in 2011
US average: 5.2%
from 68.2% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 84.1% in 2020
US average: 74.6%
from 11.8% in 2009
US average: 13.1%
from 35.7% in 2009
US average: 42.5%
Section 08
People & community from 4.2% in 2009
US average: 14.1%
from 11.7% in 2009
US average: 6.2%
from 17.8% in 2012
US average: 13.3%
from 10.0% in 2013
US average: 8.4%
from 75.8% in 2017
US average: 91.0%
Computer in household
from 94.9% in 2020
US average: 95.5%
from 92.9% in 2020
US average: 87.7%
from 85.5% in 2016
US average: 77.7%
from 12.6% in 2016
US average: 13.6%
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 10.0% in 2013
US average: 8.4%
from 66.3% in 2020
US average: 54.8%
Direct-purchase
from 16.0% in 2020
US average: 13.8%
from 24.0% in 2020
US average: 18.4%
from 15.8% in 2020
US average: 20.9%
VA health care
from 2.3% in 2020
US average: 2.2%
Any private
from 79.5% in 2020
US average: 67.1%
Any public
from 36.6% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 28.8%(75)
Share of the 260 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
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Frequently asked
How many people live in New Castle, Delaware? New Castle, Delaware has about 5,579 residents according to the 2024 American Community Survey.
What is the median household income in New Castle, Delaware? The typical household in New Castle, Delaware earns about $89,205 a year. Half of households make more than that, and half make less.
Is New Castle, Delaware expensive? In New Castle, Delaware, the median home is worth about $285,100, and the typical rent is about $1,739 a month.
How educated are people in New Castle, Delaware? About 33.8% of adults age 25 and over in New Castle, Delaware hold a bachelor's degree or higher.
What is the poverty rate in New Castle, Delaware? About 4.7% of people in New Castle, Delaware live below the federal poverty line.
Has New Castle, Delaware grown since 1990? Yes, New Castle, Delaware has grown since 1990. The population has added about 742 residents, a change of about 15 percent over that period.
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