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COUNTY

Delaware County

Pennsylvania · 580,937 residents (2025 est.) · 184 sq mi
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Part of the Philadelphia metro area
The short version

With 579,222 people, Delaware County is a county in Pennsylvania. That puts it in the top 2% of US counties for household income. Density works out to 3,151 people per square mile. 42% of adults hold a bachelor's degree or higher. That is roughly 15% ahead of the Pennsylvania median. Home values have more than doubled since 2000, reaching $332,200.

At a glance
Wealthier
median household income $89,546, above the US median
US median: $82,259
Mid-age
median age 39.1
US median: 38.9
More educated
42% hold a bachelor's degree
US average: 36%
Less affordable
home values up 44%, inflation adjusted
US median home: $376,019
Unique to this place

What stands out about Delaware County

What changed most since 1990

  • Black share11.0% → 21.9% (+10.9 pts)US over the same years: +0.2 pts
  • Median home value (2024 dollars)$268,088 → $332,200 (+24%)US over the same years: +67%
  • Hispanic share1.1% → 5.0% (+3.9 pts)US over the same years: +9.9 pts

Among the 67 counties in Pennsylvania

  • 5th in household income$89,546
  • 6th in share with a bachelor's degree41.9%
  • 4th in home value$332,200
  • 5th in diversity score69.3
Section 01

Population & growth

Total population
579,222
+5%since 2000
from 550,864 in 2000
580,937 in 2025 (Census Bureau estimate)
1990 – 2025
Population density
3,151 / sq mi
+5%since 2000
from 2,997 / sq mi in 2000
US average: 281
Median age
39.1
+5%since 2000
from 37.4 in 2000
US average: 38.9
Land area
184 sq mi
Population, 1990 – 2024
544K554K563K573K582K19902000201020202024Delaware County
2024579K
1990201020202024
Age distribution, 2024
Under 55.7%(32,930)
US avg: 5.6%
5 to 95.9%(33,923)
US avg: 6%
10 to 146.6%(38,090)
US avg: 6.4%
15 to 197.2%(41,528)
US avg: 6.6%
20 to 246.5%(37,605)
US avg: 6.5%
25 to 3412.6%(73,254)
US avg: 13.7%
35 to 4413.2%(76,203)
US avg: 13.2%
45 to 5411.8%(68,301)
US avg: 12.2%
55 to 6413.2%(76,422)
US avg: 12.7%
65 to 7410.4%(60,113)
US avg: 10.2%
75 to 844.8%(27,971)
US avg: 5.1%
85 and over2.2%(12,882)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$89,546
−2%inflation adjusted, since 2000
from $50,092 in 2000
US average: $82,259
1990 – 2024
Per capita income
$49,673
+98%since 2000
from $25,040 in 2000
US average: $44,673
Households earning $100K+
57.4%
+16.4 ptssince 2009
from 40.9% in 2009
US average: 53.3%
Poverty rate
10.2%
+2.2 ptssince 2000
from 8.0% in 2000
US average: 12.5%
Income inequality (Gini)
0.488
+6%since 2010
from 0.461 in 2010
US average: 0.476
Workforce by industry, 2024
Information10.2%
US avg: 10.8%
Other services8.8%
US avg: 6.7%
Retail trade7.7%
US avg: 9.9%
Public administration6.9%
US avg: 4.8%
Wholesale trade5.9%
US avg: 6.9%
Finance & insurance5.7%
US avg: 5.9%
Professional, scientific, technical5.1%
US avg: 5.1%
Transportation & warehousing1.8%
US avg: 2.2%
Arts, entertainment, food1.8%
US avg: 1.9%
Education & health services0.7%
US avg: 0.9%
Agriculture, forestry, fishing0.4%
US avg: 1.6%
Construction0.4%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$332,200
+44%inflation adjusted, since 2000
from $127,000 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,372
+14%inflation adjusted, since 2000
from $662 in 2000
US average: $1,442
Owner-occupied
69.6%
−2.3 ptssince 2000
from 71.9% in 2000
30.4% rent
Vacancy rate
5.6%
−1.8 ptssince 2009
from 7.4% in 2009
US average: 10.0%
Persons per household
2.56 people
−2%since 2009
from 2.60 people in 2009
US average: 2.54
Owner cost-burdened
22.9%
−7.9 ptssince 2009
from 30.9% in 2009
US average: 22.9%
Renter cost-burdened
52.6%
+5.7 ptssince 2009
from 46.9% in 2009
US average: 47.4%
Afford Score
3.7
+2%since 2009
from 3.6 in 2009
1990 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Gentrification Score
37
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04

Race & ethnicity

2000
White, non-Hispanic79.6%(438,416)
Black14.4%(79,070)
Hispanic / Latino1.5%(8,368)
Asian3.3%(18,022)
Other0%
2024
White, non-Hispanic62.4%(361,386)
Black21.9%(126,799)
Hispanic / Latino5%(29,222)
Asian6.3%(36,677)
Other4.3%(25,138)
Diversity Score
69
+35%since 2009
from 51 in 2009
1990 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
51
−6%since 2020
from 55 in 2020
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
Puerto Rican1.6%(9,444)
Mexican0.9%(5,325)
Central American0.6%(3,345)
Ecuadorian0.5%(2,744)
Honduran0.3%(1,692)
Dominican0.2%(1,194)
Cuban0.2%(963)
Colombian0.2%(938)
Spaniard0.1%(776)
Venezuelan0.1%(616)
Salvadoran0.1%(558)
+ 10 more hispanic origin groups with data
Argentine0.1%(523)
Costa Rican0.1%(490)
Guatemalan0.1%(439)
Peruvian0.1%(420)
Chilean0%(202)
Panamanian0%(101)
Bolivian0%(42)
Uruguayan0%(11)
Asian origin
Asian Indian1.9%(11,111)
Chinese1.5%(8,750)
Vietnamese0.8%(4,556)
Korean0.5%(2,895)
Bangladeshi0.3%(1,926)
Filipino0.3%(1,692)
Pakistani0.3%(1,589)
Cambodian0.2%(1,142)
Japanese0.1%(323)
Indonesian0%(288)
Taiwanese0%(234)
Sri Lankan0%(190)
+ 10 more asian origin groups with data
Thai0%(111)
Laotian0%(72)
Malaysian0%(48)
Nepalese0%(40)
Burmese0%(28)
Uzbek0%(19)
Kazakh0%(18)
Mongolian0%(15)
Hmong0%(13)
Okinawan0%(12)
Pacific Islander origin
Fijian0%(80)
Samoan0%(59)
Chamorro0%(59)
Ancestry
Irish22.2%(128,710)
Italian14.4%(83,402)
German11.8%(68,523)
English7.7%(44,623)
Polish3.5%(20,007)
Subsaharan African3.2%(18,422)
American2.7%(15,390)
West Indian1.4%(8,146)
Scottish1.4%(7,904)
Greek1%(6,077)
French1%(5,576)
Russian0.9%(5,317)
+ 50 more ancestry groups with data
Ukrainian0.8%(4,529)
Jamaican0.7%(3,792)
Welsh0.6%(3,352)
Scotch-Irish0.6%(3,306)
Arab0.6%(3,223)
Dutch0.5%(3,167)
Haitian0.5%(3,088)
Swedish0.5%(2,932)
Hungarian0.4%(2,344)
Lithuanian0.4%(2,209)
British0.4%(2,188)
Nigerian0.3%(1,961)
Armenian0.3%(1,906)
Norwegian0.3%(1,748)
Slovak0.3%(1,538)
Austrian0.2%(1,396)
Swiss0.2%(1,231)
French Canadian0.2%(1,099)
Czech0.2%(1,096)
Ghanaian0.2%(973)
Lebanese0.2%(965)
Iranian0.2%(917)
Turkish0.1%(767)
Canadian0.1%(761)
Portuguese0.1%(745)
Danish0.1%(694)
Romanian0.1%(589)
Egyptian0.1%(526)
Barbadian0.1%(427)
Moroccan0.1%(423)
Croatian0.1%(375)
Ethiopian0.1%(364)
Syrian0.1%(319)
Brazilian0.1%(308)
Serbian0%(254)
Belgian0%(205)
Finnish0%(200)
Israeli0%(187)
Kenyan0%(183)
Slovene0%(138)
Guyanese0%(123)
Jordanian0%(116)
Latvian0%(116)
Bulgarian0%(114)
Iraqi0%(39)
Somali0%(15)
Section 05

Education

Bachelor's degree or higher
41.9%
+11.9 ptssince 2000
from 30.0% in 2000
US average: 35.6%
High school or higher
93.9%
+7.4 ptssince 2000
from 86.5% in 2000
US average: 89.6%
Graduate degree
18.4%
+6.6 ptssince 2000
from 11.8% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
28.1 min
+51%since 2000
from 18.6 min in 2000
US average: 26.5
Drive alone to work
64.4%
−10.4 ptssince 2009
from 74.8% in 2009
US average: 68.9%
Carpooled to work
6.6%
−1.8 ptssince 2009
from 8.4% in 2009
US average: 8.5%
Public transit
5.9%
−2.8 ptssince 2009
from 8.7% in 2009
US average: 3.2%
Worked from home
18.0%
+14.8 ptssince 2009
from 3.2% in 2009
US average: 15.0%
Walked to work
3.3%
−0.6 ptssince 2009
from 3.9% in 2009
US average: 2.4%
Biked to work
0.2%
−0.1 ptssince 2009
from 0.3% in 2009
US average: 0.4%
No vehicle available
9.6%
−0.7 ptssince 2009
from 10.3% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
6.9%
−1.0 ptssince 2011
from 7.9% in 2011
US average: 5.2%
Labor force participation
65.6%
+0.2 ptssince 2011
from 65.4% in 2011
US average: 63.5%
Women 20-64 in the labor force
78.2%
+0.6 ptssince 2020
from 77.6% in 2020
US average: 74.6%
Self-employed
12.8%
+0.8 ptssince 2009
from 12.0% in 2009
US average: 13.1%
Management & professional
47.2%
+5.9 ptssince 2009
from 41.3% in 2009
US average: 42.5%
Section 08

People & community

Male
48.4%
+0.4 ptssince 2009
from 48.1% in 2009
Female
51.6%
−0.4 ptssince 2009
from 51.9% in 2009
Foreign born
11.2%
+3.5 ptssince 2009
from 7.7% in 2009
US average: 14.1%
Veterans
4.9%
−4.8 ptssince 2009
from 9.7% in 2009
US average: 6.2%
With a disability
12.5%
+1.6 ptssince 2012
from 10.9% in 2012
US average: 13.3%
Uninsured
4.6%
−4.1 ptssince 2013
from 8.7% in 2013
US average: 8.4%
Broadband at home
93.3%
+11.1 ptssince 2017
from 82.2% in 2017
US average: 91.0%
Computer in household
96.4%
+3.6 ptssince 2020
from 92.8% in 2020
US average: 95.5%
Same house as last year
90.7%
+1.7 ptssince 2020
from 89.0% in 2020
US average: 87.7%
English only at home
86.5%
−1.7 ptssince 2016
from 88.3% in 2016
US average: 77.7%
Spanish at home
3.0%
+0.3 ptssince 2016
from 2.7% in 2016
US average: 13.6%
Marital status
Men 15+
Never married40.4%(91,655)
Married49.6%(112,612)
Widowed3%(6,856)
Divorced7%(15,847)
Women 15+
Never married37.1%(91,853)
Married44%(108,857)
Widowed8.5%(21,066)
Divorced10.3%(25,533)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
4.6%
−4.1 ptssince 2013
from 8.7% in 2013
US average: 8.4%
Employer-based
65.1%
+1.0 ptssince 2020
from 64.1% in 2020
US average: 54.8%
Direct-purchase
16.9%
+1.5 ptssince 2020
from 15.4% in 2020
US average: 13.8%
Medicare
18.4%
+0.8 ptssince 2020
from 17.6% in 2020
US average: 18.4%
Medicaid
19.6%
+1.6 ptssince 2020
from 18.0% in 2020
US average: 20.9%
VA health care
1.4%
Unchangedsince 2020
from 1.4% in 2020
US average: 2.2%
Any private
75.7%
−0.2 ptssince 2020
from 75.9% in 2020
US average: 67.1%
Any public
35.1%
+1.9 ptssince 2020
from 33.2% 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)20.2%(4,448)
US avg: 26.4%
Gulf War (1990s)15.6%(3,453)
US avg: 24.3%
Vietnam era35.8%(7,906)
US avg: 33.1%
Korean War8.1%(1,798)
US avg: 4.5%
World War II2.8%(614)
US avg: 1%

Share of the 22,065 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
Over time

Delaware County, decade by decade

Delaware County population, inflation-adjusted income and home value, education, and diversity by year
YearPopulationMedian household incomeMedian home valueBachelor's degree+Diversity score
1990547,651$89,611$268,08824.8%31.3
2000550,864$91,250$231,35030.0%43.1
2010558,979$89,013$334,18034.7%56.7
2020576,830$92,403$300,46439.5%68.5
2024579,222$89,546$332,20041.9%69.3

Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.

Drill deeper

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Pop 578,741
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Pop 563,159
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Pop 535,799
Places similar to Delaware County
Head to head

Compare Delaware County to nearby counties

DELAWARE COUNTY VS
Philadelphia County
Income$61,953−31%
Home value$243,100−27%
Population1,574,281+171%
SEE FULL COMPARISON →
DELAWARE COUNTY VS
Gloucester County
Income$105,115+17%
Home value$310,400−7%
Population312,638−46%
SEE FULL COMPARISON →
DELAWARE COUNTY VS
Chester County
Income$127,208+42%
Home value$485,600+46%
Population557,116−4%
SEE FULL COMPARISON →
DELAWARE COUNTY VS
Montgomery County
Income$113,915+27%
Home value$436,700+31%
Population877,643+51%
SEE FULL COMPARISON →
Frequently asked

How many people live in Delaware County, Pennsylvania?

Delaware County, Pennsylvania has about 579,222 residents according to the 2024 American Community Survey.

What is the median household income in Delaware County, Pennsylvania?

The typical household in Delaware County, Pennsylvania earns about $89,546 a year. Half of households make more than that, and half make less.

Is Delaware County, Pennsylvania expensive?

In Delaware County, Pennsylvania, the median home is worth about $332,200, and the typical rent is about $1,372 a month.

How educated are people in Delaware County, Pennsylvania?

About 41.9% of adults age 25 and over in Delaware County, Pennsylvania hold a bachelor's degree or higher.

What is the poverty rate in Delaware County, Pennsylvania?

About 10.2% of people in Delaware County, Pennsylvania live below the federal poverty line.

Has Delaware County, Pennsylvania grown since 1990?

Yes, Delaware County, Pennsylvania has grown since 1990. The population has added about 31,571 residents, a change of about 6 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 →