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COUNTY · 2000 CENSUS

New Castle County

Delaware · 500,265 residents · 426 sq mi
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The short version

New Castle County is home to 500,265 people in Delaware. About 29% of adults have finished a four-year degree. Median household income runs $52,419, well clear of the $42,589 US median. 58,319 more people live here than in 1990. The poverty rate is 8.4%, under the national 12.4%. The typical home is worth $132,900.

At a glance
Wealthier
above the US median
US median: $42,589
Mid-age
median age 35.0
US median: 35.2
More educated
29% hold a bachelor's degree
US average: 24%
More affordable
home values down 8%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
500,265
+13%since 1990
from 441,946 in 1990
1990 – 2025
Median age
35.0
+7%since 1990
from 32.6 in 1990
US average: 35.2
Land area
426 sq mi
Population, 1990 – 2024
428K469K510K551K592K19902000201020202024New Castle County
2024578K
1990201020202024
Age distribution, 2000
Under 56.7%(33,384)
US avg: 6.8%
5 to 97.2%(36,150)
US avg: 7.3%
10 to 147%(34,961)
US avg: 7.3%
15 to 197.3%(36,309)
US avg: 7.2%
20 to 247.1%(35,499)
US avg: 6.7%
25 to 3414.8%(73,869)
US avg: 14.2%
35 to 4416.7%(83,616)
US avg: 16%
45 to 5413.4%(66,882)
US avg: 13.4%
55 to 648.3%(41,692)
US avg: 8.6%
65 to 746.2%(30,904)
US avg: 6.5%
75 to 844.1%(20,556)
US avg: 4.4%
85 and over1.3%(6,443)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$52,419
+3%inflation adjusted, since 1990
from $38,617 in 1990
US average: $42,589
1990 – 2024
Per capita income
$25,413
+46%since 1990
from $17,442 in 1990
US average: $21,522
Poverty rate
8.4%
+0.9 ptssince 1990
from 7.5% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$132,900
−8%inflation adjusted, since 1990
from $110,100 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$670
−3%inflation adjusted, since 1990
from $524 in 1990
US average: $602
Owner-occupied
70.1%
+1.9 ptssince 1990
from 68.3% in 1990
29.9% rent
Section 04

Race & ethnicity

1990
White, non-Hispanic80.5%(355,748)
Black16.4%(72,531)
Hispanic / Latino2.5%(11,076)
Asian1.5%(6,803)
2000
White, non-Hispanic70.7%(353,760)
Black19.9%(99,648)
Hispanic / Latino5.3%(26,293)
Asian2.6%(12,856)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican4.4%(25,453)
Puerto Rican3.7%(21,312)
Dominican1%(5,713)
Central American0.6%(3,600)
Colombian0.3%(1,826)
Guatemalan0.3%(1,568)
Spaniard0.2%(1,378)
Cuban0.2%(1,313)
Venezuelan0.2%(905)
Peruvian0.1%(841)
Chilean0.1%(805)
+ 10 more hispanic origin groups with data
Honduran0.1%(728)
Salvadoran0.1%(654)
Argentine0.1%(619)
Ecuadorian0.1%(539)
Panamanian0.1%(426)
Bolivian0%(82)
Uruguayan0%(79)
Asian origin
Asian Indian2.7%(15,782)
Chinese1.3%(7,337)
Filipino0.6%(3,391)
Pakistani0.3%(1,757)
Korean0.3%(1,707)
Bangladeshi0.2%(1,385)
Vietnamese0.2%(1,295)
Japanese0.1%(552)
Taiwanese0.1%(525)
Nepalese0.1%(329)
Cambodian0%(144)
Kazakh0%(111)
+ 8 more asian origin groups with data
Sri Lankan0%(103)
Thai0%(77)
Uzbek0%(62)
Mongolian0%(55)
Malaysian0%(47)
Laotian0%(37)
Burmese0%(7)
Pacific Islander origin
Guamanian0%(59)
Samoan0%(32)
Chamorro0%(10)
Tongan0%(3)
Fijian0%(3)
Ancestry
Irish14.8%(85,505)
German11.7%(67,470)
Italian9.6%(55,298)
English9.2%(53,436)
Polish4.5%(26,166)
American3.2%(18,604)
Subsaharan African2.4%(14,023)
West Indian1.5%(8,472)
Scottish1.5%(8,436)
French1.1%(6,153)
Jamaican0.9%(4,990)
Arab0.7%(4,249)
+ 47 more ancestry groups with data
Welsh0.7%(3,931)
Ukrainian0.6%(3,562)
Russian0.6%(3,455)
Swedish0.6%(3,213)
Dutch0.5%(3,133)
Scotch-Irish0.5%(2,671)
Greek0.4%(2,594)
Norwegian0.4%(2,396)
Nigerian0.4%(2,063)
Hungarian0.3%(1,794)
British0.3%(1,500)
Haitian0.3%(1,500)
Ghanaian0.3%(1,498)
Lithuanian0.2%(1,441)
Slovak0.2%(1,408)
Czech0.2%(1,343)
French Canadian0.2%(1,191)
Egyptian0.2%(1,190)
Turkish0.2%(1,156)
Kenyan0.2%(997)
Austrian0.2%(951)
Canadian0.1%(751)
Danish0.1%(742)
Swiss0.1%(740)
Portuguese0.1%(718)
Lebanese0.1%(578)
Barbadian0.1%(498)
Ethiopian0.1%(464)
Bulgarian0.1%(402)
Romanian0.1%(388)
Finnish0.1%(364)
Moroccan0.1%(348)
Iranian0.1%(347)
Guyanese0.1%(342)
Croatian0.1%(321)
Belgian0%(262)
Serbian0%(250)
Syrian0%(178)
Slovene0%(168)
Latvian0%(155)
Jordanian0%(121)
Brazilian0%(107)
Armenian0%(103)
Israeli0%(81)
Section 05

Education

Bachelor's degree or higher
29.5%
+4.3 ptssince 1990
from 25.2% in 1990
US average: 24.4%
High school or higher
85.5%
+4.8 ptssince 1990
from 80.6% in 1990
US average: 80.3%
Graduate degree
11.0%
+1.8 ptssince 1990
from 9.2% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
15.7 min
−17%since 1990
from 19.0 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married31.5%(59,572)
Married57.4%(108,360)
Widowed2.5%(4,816)
Divorced8.5%(16,130)
Women 15+
Never married27.6%(57,161)
Married51.3%(106,147)
Widowed10.3%(21,204)
Divorced10.8%(22,324)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured
5.9%
−3.0 ptssince 2013
from 8.9% in 2013
US average: 8.4%
Employer-based
62.5%
−3.2 ptssince 2020
from 65.7% in 2020
US average: 54.8%
Direct-purchase
13.6%
+0.5 ptssince 2020
from 13.1% in 2020
US average: 13.8%
Medicare
18.1%
+1.0 ptssince 2020
from 17.1% in 2020
US average: 18.4%
Medicaid
18.9%
+0.1 ptssince 2020
from 18.8% in 2020
US average: 20.9%
VA health care
1.7%
−0.1 ptssince 2020
from 1.8% in 2020
US average: 2.2%
Any private
73.2%
−2.2 ptssince 2020
from 75.4% in 2020
US average: 67.1%
Any public
34.8%
+1.1 ptssince 2020
from 33.7% 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)22.4%(5,898)
US avg: 26.4%
Gulf War (1990s)19.4%(5,106)
US avg: 24.3%
Vietnam era34%(8,941)
US avg: 33.1%
Korean War4%(1,042)
US avg: 4.5%
World War II1.3%(352)
US avg: 1%

Share of the 26,290 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

Places similar to New Castle County

Delaware County
Pop 580,937
South Central Connecticut Planning Region
Pop 578,741
Ada County
Pop 546,141
Bristol County
Pop 593,640
Places similar to New Castle County
Head to head

Compare New Castle County to nearby counties

NEW CASTLE COUNTY VS
Salem County
Income$79,960+53%
Home value$239,500+80%
Population66,280−89%
SEE FULL COMPARISON →
NEW CASTLE COUNTY VS
Cecil County
Income$92,007+76%
Home value$343,400+158%
Population107,131−82%
SEE FULL COMPARISON →
NEW CASTLE COUNTY VS
Delaware County
Income$89,546+71%
Home value$332,200+150%
Population580,937−1%
SEE FULL COMPARISON →
NEW CASTLE COUNTY VS
Chester County
Income$127,208+143%
Home value$485,600+265%
Population557,116−5%
SEE FULL COMPARISON →
Frequently asked

How many people live in New Castle County, Delaware?

New Castle County, Delaware has about 500,265 residents according to the 2000 Census.

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

The typical household in New Castle County, Delaware earns about $52,419 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 $132,900, and the typical rent is about $670 a month.

How educated are people in New Castle County, Delaware?

About 29.5% 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 8.4% 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 58,319 residents, a change of about 13 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 →

New Castle County, Delaware (2000): demographics, income & housing data · CensusEasy