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COUNTY · 2020 ACS

New Castle County

Delaware · 570,719 residents · 426 sq mi
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The short version

New Castle County is a county of 570,719 people in Delaware. 70,454 more people live here than in 2000. About 37% of adults have finished a four-year degree. Median household income runs $75,275, well clear of the $66,278 US median. The typical home is worth $266,500, having more than doubled since 2000.

At a glance
Wealthier
above the US median
US median: $66,278
Mid-age
median age 39.0
US median: 38.8
More educated
37% hold a bachelor's degree
US average: 33%
Less affordable
home values up 33%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
570,719
+14%since 2000
from 500,265 in 2000
1990 – 2025
Median age
39.0
+11%since 2000
from 35.0 in 2000
US average: 38.8
Land area
426 sq mi
Population, 1990 – 2024
428K469K510K551K592K19902000201020202024New Castle County
2024578K
1990201020202024
Age distribution, 2020
Under 55.2%(29,685)
US avg: 5.6%
5 to 95.8%(33,197)
US avg: 6.1%
10 to 146.3%(36,089)
US avg: 6.5%
15 to 196.6%(37,634)
US avg: 6.6%
20 to 247.3%(41,920)
US avg: 6.7%
25 to 3413.5%(76,952)
US avg: 13.5%
35 to 4412.6%(71,674)
US avg: 12.7%
45 to 5412.6%(72,001)
US avg: 12.3%
55 to 6413.7%(78,207)
US avg: 13.1%
65 to 749.8%(55,739)
US avg: 10%
75 to 844.7%(26,993)
US avg: 4.9%
85 and over1.9%(10,628)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$75,275
−4%inflation adjusted, since 2000
from $52,419 in 2000
US average: $66,278
1990 – 2024
Per capita income
$38,965
+53%since 2000
from $25,413 in 2000
US average: $35,364
Households earning $100K+
50.1%
+8.3 ptssince 2009
from 41.9% in 2009
US average: 43.9%
Poverty rate
10.7%
+2.3 ptssince 2000
from 8.4% in 2000
US average: 12.8%
Workforce by industry, 2020
Other services11.9%
US avg: 6.6%
Information10.8%
US avg: 11.1%
Public administration10.5%
US avg: 4.7%
Retail trade7.7%
US avg: 10%
Finance & insurance6.3%
US avg: 5.5%
Wholesale trade5.7%
US avg: 6.7%
Professional, scientific, technical5.4%
US avg: 4.7%
Transportation & warehousing2.2%
US avg: 2.5%
Arts, entertainment, food1.3%
US avg: 2%
Education & health services0.9%
US avg: 0.8%
Agriculture, forestry, fishing0.6%
US avg: 1.7%
Construction0.6%
US avg: 1.2%
Manufacturing0%
US avg: 0.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$266,500
+33%inflation adjusted, since 2000
from $132,900 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$1,182
+17%inflation adjusted, since 2000
from $670 in 2000
US average: $1,124
Owner-occupied
66.7%
−3.4 ptssince 2000
from 70.1% in 2000
33.3% rent
Persons per household
2.59 people
−1%since 2009
from 2.61 people in 2009
US average: 2.61
Afford Score
3.5
−9%since 2009
from 3.9 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04

Race & ethnicity

2000
White, non-Hispanic70.7%(353,760)
Black19.9%(99,648)
Hispanic / Latino5.3%(26,293)
Asian2.6%(12,856)
Other0%
2020
White, non-Hispanic53.1%(303,265)
Black24.9%(142,388)
Hispanic / Latino11.1%(63,516)
Asian6.1%(35,022)
Other3.1%(17,438)
Segregation Score
37
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican4.3%(23,871)
Puerto Rican3.3%(18,169)
South American0.8%(4,680)
Central American0.6%(3,256)
Dominican0.5%(3,005)
Colombian0.3%(1,723)
Spaniard0.2%(1,372)
Honduran0.2%(917)
Peruvian0.2%(844)
Cuban0.1%(754)
Guatemalan0.1%(658)
Argentine0.1%(638)
+ 9 more hispanic origin groups with data
Ecuadorian0.1%(614)
Salvadoran0.1%(511)
Panamanian0.1%(502)
Chilean0.1%(438)
Costa Rican0.1%(348)
Venezuelan0.1%(338)
Nicaraguan0.1%(316)
Bolivian0%(48)
Uruguayan0%(24)
Asian origin
Asian Indian2.6%(14,765)
Chinese1.4%(7,704)
Filipino0.5%(2,591)
Korean0.3%(1,809)
Vietnamese0.2%(1,058)
Pakistani0.2%(895)
Japanese0.1%(614)
Bangladeshi0.1%(537)
Taiwanese0%(188)
Sri Lankan0%(186)
Thai0%(146)
Laotian0%(119)
+ 4 more asian origin groups with data
Cambodian0%(96)
Nepalese0%(44)
Malaysian0%(23)
Pacific Islander origin
Samoan0%(47)
Chamorro0%(19)
Ancestry
Irish13.6%(76,026)
German10.9%(60,927)
Italian9.5%(52,789)
English8.1%(44,995)
Polish4.6%(25,667)
American4.4%(24,651)
Subsaharan African1.9%(10,885)
Scottish1.4%(7,723)
French1.3%(7,499)
West Indian1%(5,617)
Russian0.8%(4,190)
Welsh0.7%(4,118)
+ 49 more ancestry groups with data
Swedish0.7%(3,984)
Dutch0.7%(3,823)
Ukrainian0.7%(3,701)
Scotch-Irish0.6%(3,348)
British0.6%(3,095)
Jamaican0.5%(2,864)
Greek0.5%(2,562)
Norwegian0.4%(2,000)
Hungarian0.3%(1,884)
French Canadian0.3%(1,416)
Kenyan0.3%(1,404)
Lithuanian0.2%(1,313)
Nigerian0.2%(1,076)
Haitian0.2%(1,014)
Swiss0.2%(983)
Slovak0.2%(927)
Austrian0.2%(887)
Czech0.2%(847)
Arab0.1%(718)
Lebanese0.1%(687)
Turkish0.1%(622)
Portuguese0.1%(603)
Danish0.1%(582)
Belgian0.1%(540)
Canadian0.1%(458)
Ghanaian0.1%(432)
Guyanese0.1%(419)
Croatian0.1%(383)
Iranian0.1%(375)
Romanian0.1%(367)
Bulgarian0.1%(349)
Egyptian0.1%(345)
Ethiopian0.1%(343)
Armenian0%(247)
Serbian0%(247)
Brazilian0%(233)
Barbadian0%(211)
Finnish0%(198)
Australian0%(147)
Syrian0%(137)
Moroccan0%(116)
Slovene0%(96)
Jordanian0%(62)
Israeli0%(55)
Latvian0%(53)
Section 05

Education

Bachelor's degree or higher
36.7%
+7.2 ptssince 2000
from 29.5% in 2000
US average: 32.9%
High school or higher
92.1%
+6.7 ptssince 2000
from 85.5% in 2000
US average: 88.5%
Graduate degree
15.6%
+4.6 ptssince 2000
from 11.0% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
26.0 min
+65%since 2000
from 15.7 min in 2000
US average: 26.9
Drive alone to work
77.0%
−1.9 ptssince 2009
from 78.8% in 2009
US average: 75.1%
No vehicle available
6.7%
−1.1 ptssince 2009
from 7.8% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
6.1%
−1.5 ptssince 2011
from 7.6% in 2011
US average: 5.4%
Labor force participation
65.3%
−1.9 ptssince 2011
from 67.2% in 2011
US average: 63.4%
Women 20-64 in the labor force
76.8%
US average: 73.3%
Management & professional
44.8%
+4.2 ptssince 2009
from 40.6% in 2009
US average: 39.3%
Section 08

People & community

Male
48.4%
−0.2 ptssince 2009
from 48.6% in 2009
Female
51.6%
+0.2 ptssince 2009
from 51.4% in 2009
Foreign born
11.5%
+2.2 ptssince 2009
from 9.2% in 2009
US average: 13.5%
Uninsured
5.1%
−3.8 ptssince 2013
from 8.9% in 2013
US average: 8.8%
Computer in household
94.5%
US average: 91.9%
Same house as last year
87.7%
US average: 86.2%
Marital status (2024)
Men 15+
Never married39.4%(90,389)
Married49%(112,456)
Widowed2.9%(6,720)
Divorced8.7%(19,853)
Women 15+
Never married36%(89,278)
Married43.9%(108,966)
Widowed8%(19,751)
Divorced12.1%(29,978)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
5.1%
−3.8 ptssince 2013
from 8.9% in 2013
US average: 8.8%
Employer-based
65.7%
US average: 55.4%
Direct-purchase
13.1%
US average: 13.7%
Medicare
17.1%
US average: 17.6%
Medicaid
18.8%
US average: 20.0%
VA health care
1.8%
US average: 2.3%
Any private
75.4%
US average: 68.1%
Any public
33.7%
US average: 35.2%

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, 2020
Gulf War (2001 or later)16.8%(5,053)
US avg: 20.6%
Gulf War (1990s)19.9%(5,980)
US avg: 21.4%
Vietnam era36%(10,818)
US avg: 35.2%
Korean War6.1%(1,848)
US avg: 7.6%
World War II2.8%(853)
US avg: 2.9%

Share of the 30,066 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.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

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Head to head

Compare New Castle County to nearby counties

NEW CASTLE COUNTY VS
Salem County
Income$79,960+6%
Home value$239,500−10%
Population66,280−89%
SEE FULL COMPARISON →
NEW CASTLE COUNTY VS
Cecil County
Income$92,007+22%
Home value$343,400+29%
Population107,131−82%
SEE FULL COMPARISON →
NEW CASTLE COUNTY VS
Delaware County
Income$89,546+19%
Home value$332,200+25%
Population580,937−1%
SEE FULL COMPARISON →
NEW CASTLE COUNTY VS
Chester County
Income$127,208+69%
Home value$485,600+82%
Population557,116−5%
SEE FULL COMPARISON →
Frequently asked

How many people live in New Castle County, Delaware?

New Castle County, Delaware has about 570,719 residents according to the 2020 American Community Survey.

What is the median household income in New Castle County, Delaware?

The typical household in New Castle County, Delaware earns about $75,275 a year. Half of households make more than that, and half make less.

Is New Castle County, Delaware expensive?

In New Castle County, Delaware, the median home is worth about $266,500, and the typical rent is about $1,182 a month.

How educated are people in New Castle County, Delaware?

About 36.7% of adults age 25 and over in New Castle County, Delaware hold a bachelor's degree or higher.

What is the poverty rate in New Castle County, Delaware?

About 10.7% of people in New Castle County, Delaware live below the federal poverty line.

Has New Castle County, Delaware grown since 1990?

Yes, New Castle County, Delaware has grown since 1990. The population has added about 128,773 residents, a change of about 29 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →