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COUNTY · 1990 CENSUS

New Castle County

Delaware · 441,946 residents · 426.337 sq mi
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The short version

New Castle County is wealthier than most US places, with a median household income of $38,617. Population has declined 12% since 2000. Median home value is $110,100.

At a glance
Wealthier
above the US median
US median: $30,130
Mid-age
median age 32.6
US median: 33.0
More educated
25% hold a bachelor's degree
US average: 20%
Stable housing
home values roughly flat, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
441,946
−12%vs 2000
vs 500,265 in 2000
1990 – 2025
Population density
1,037 / sq mi
−12%vs 2000
vs 1,173 / sq mi in 2000
US average: 221
Median age
32.6
−7%vs 2000
vs 35.0 in 2000
US average: 33.0
Population, 1990 – 2024
428K469K510K551K592K1990201020202024New Castle County
2024578K
1990201020202024
Section 02

Income & economy

Median household income
$38,617
−3%inflation adjusted, since 2000
vs $52,419 in 2000
US average: $30,130
1990 – 2024
Per capita income
$17,442
−31%vs 2000
vs $25,413 in 2000
US average: $14,340
Poverty rate
7.5%
−0.9 ptsvs 2000
vs 8.4% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$110,100
+9%inflation adjusted, since 2000
vs $132,900 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$524
+3%inflation adjusted, since 2000
vs $670 in 2000
US average: $450
Owner-occupied
68.3%
−1.9 ptsvs 2000
vs 70.1% in 2000
31.7% rent
Afford Score
2.9
+12%vs 2000
vs 2.5 in 2000
1990 – 2024
RELATED:See current rent listings in New Castle County on RentDataNow
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%
Diversity Score55%(274,967)
1990
White, non-Hispanic80.5%(355,748)
Black16.4%(72,531)
Hispanic / Latino2.5%(11,076)
Asian1.5%(6,803)
Other1.6%(6,864)
Diversity Score44.6%(197,027)
Diversity Score
45
−19%vs 2000
vs 55 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
25.2%
−4.3 ptsvs 2000
vs 29.5% in 2000
US average: 20.3%
High school or higher
80.6%
−4.8 ptsvs 2000
vs 85.5% in 2000
US average: 75.2%
Graduate degree
9.2%
−1.8 ptsvs 2000
vs 11.0% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
19.0 min
+21%vs 2000
vs 15.7 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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+107%
Home value$239,500+118%
Population66,280−89%
SEE FULL COMPARISON →
NEW CASTLE COUNTY VS
Cecil County
Income$92,007+138%
Home value$343,400+212%
Population107,131−82%
SEE FULL COMPARISON →
NEW CASTLE COUNTY VS
Delaware County
Income$89,546+132%
Home value$332,200+202%
Population580,937−1%
SEE FULL COMPARISON →
NEW CASTLE COUNTY VS
Chester County
Income$127,208+229%
Home value$485,600+341%
Population557,116−5%
SEE FULL COMPARISON →
Frequently asked

How many people live in New Castle County, Delaware?

New Castle County, Delaware has about 441,946 residents according to the 1990 Census.

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

The typical household in New Castle County, Delaware earns about $38,617 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 $110,100, and the typical rent is about $524 a month.

How educated are people in New Castle County, Delaware?

About 25.2% 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 7.5% of people in New Castle County, Delaware live below the federal poverty line.

Keep going

Explore from here

145 census tracts (top 20 by population)
Census Tract 166.11Census Tract 148.09Census Tract 145.02Census Tract 166.08Census Tract 166.10Census Tract 149.03Census Tract 166.12Census Tract 163.01Census Tract 168.08Census Tract 135.01Census Tract 148.10Census Tract 166.14Census Tract 164.01Census Tract 148.11Census Tract 149.09Census Tract 148.08Census Tract 135.08Census Tract 138Census Tract 136.11Census Tract 152
29 ZIP codes
ZIP 19720ZIP 19702ZIP 19709ZIP 19711ZIP 19701ZIP 19805ZIP 19808ZIP 19713ZIP 19810ZIP 19802ZIP 19803ZIP 19804ZIP 19707ZIP 19801ZIP 19703ZIP 19809ZIP 19734ZIP 19806ZIP 19807ZIP 19717ZIP 19706ZIP 19731ZIP 19730ZIP 19733ZIP 19736ZIP 19732ZIP 19716ZIP 19735ZIP 19710
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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