Delaware County, Pennsylvania Population 2024

572,002

Delaware County, Pennsylvania's estimated 2024 population is 572,002 with a growth rate of -0.28% in the past year according to the most recent United States census data. Delaware County, Pennsylvania is the 5th largest county in Pennsylvania. The 2010 population was 559,009 and has seen a growth of 2.32% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029564,052-1,590-0.28%
2028565,642-1,590-0.28%
2027567,232-1,590-0.28%
2026568,822-1,590-0.28%
2025570,412-1,590-0.28%
2024572,002-1,590-0.28%
2023573,592-1,590-0.28%
2022575,182-1,590-0.28%
2021576,7724490.08%
2020576,3239,8171.73%
2019566,5061,0000.18%
2018565,5061,4910.26%
2017564,0151550.03%
2016563,8604260.08%
2015563,4345660.1%
2014562,8681,2330.22%
2013561,6357700.14%
2012560,8651,5270.27%
2011559,3383290.06%
2010559,009
1990547,651-7,356-1.33%
1980555,007-45,028-7.5%
1970600,03546,8818.48%
1960553,154138,92033.54%
1950414,234103,47833.3%
1940310,75630,49210.88%
1930280,264107,18061.92%
1920173,08455,17846.8%
1910117,90623,14424.42%
190094,76220,07926.89%
189074,68318,58233.12%
188056,10116,69842.38%
187039,4038,80628.78%
186030,5975,91823.98%
185024,6794,88824.7%
184019,7912,46814.25%
183017,3232,51316.97%
182014,810760.52%
181014,7341,92515.03%
180012,8093,32635.07%
17909,483-554,569-98.32%
showing: 41 rows
2024 Growth Rate
-0.28% (-1,590)
County Website
Delaware County
County Seat
2010 Population
559,009
Area
184 mi²
Density
3109 people/mi²
Growth Since 2010
2.32% (12,993)
Founded
September 26, 1789

Delaware County, Pennsylvania Population 2024

Population by Race

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Race
Population
Percentage (of total)
White378,13465.73%
Black or African American126,60822.01%
Asian34,8106.05%
Two or more races24,6004.28%
Other race10,2041.77%
Native American7250.13%
Native Hawaiian or Pacific Islander2310.04%
showing: 7 rows

White

Black or African American

Asian

Two or more races

Other race

Native American

Native Hawaiian or Pacific Islander

Delaware County, Pennsylvania Population by Race

Delaware County, Pennsylvania Population Pyramid 2024

Delaware County, Pennsylvania Median Age

39

Total

37.6

Male

40.3

Female

Delaware County, Pennsylvania Adults

There are 449,262 adults, (96,358 of whom are seniors) in Delaware County, Pennsylvania.

Delaware County, Pennsylvania Age Dependency

63

Age Dependency Ratio

27.3

Old Age Dependency Ratio

35.7

Child Dependency Ratio

Delaware County, Pennsylvania Sex Ratio

Female296,27551.5%
Male279,03748.5%

Delaware County, Pennsylvania Population by Age

Delaware County, Pennsylvania Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All215,8332.5668.931.1
Married101,0423.387.412.6
Non Family73,2851.1750.749.3
Female31,1233.3252.347.7
Male10,3833.0166.733.3
showing: 5 rows

3.21

Average Family Size

2.56

Average Household Size

68.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Delaware County, Pennsylvania Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Delaware County, Pennsylvania Educational Attainment by Sex (over 25)

Delaware County, Pennsylvania Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among islander people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 56.58%.

Delaware County, Pennsylvania Educational Attainment by Race

All

Male

Female

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$55,211

Average Earnings

$64,225

Average Male

$47,430

Average Female

Delaware County, Pennsylvania Earnings by Educational Attainment

Delaware County, Pennsylvania Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Delaware County, Pennsylvania Language

86.99% of Delaware County, Pennsylvania residents speak only English, while 13.01% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 4.83% of the population.

Delaware County, Pennsylvania Language

Delaware County, Pennsylvania Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
Black122,49724,39319.91%
White356,82019,3385.42%
Hispanic23,4194,28518.3%
Asian33,8323,2459.59%
Multiple23,1783,08213.3%
Other9,7172,54726.21%
Native7018011.41%
Islander2312410.39%
showing: 8 rows

9.66%

Overall Poverty Rate

8.32%

Male Poverty Rate

10.93%

Female Poverty Rate

Poverty in Delaware County, Pennsylvania

The race most likely to be in poverty in Delaware County, Pennsylvania is Other, with 26.21% below the poverty level.

The race least likely to be in poverty in Delaware County, Pennsylvania is White, with 5.42% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.71%. Among those working part-time, it was 11.3%, and for those that did not work, the poverty rate was 17.41%.

Delaware County, Pennsylvania Poverty

rate

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Rate
Poverty
Less Than 9th Grade23.56%
High School12.83%
Some College7.33%
Bachelors or Greater3.39%
showing: 4 rows

Delaware County, Pennsylvania Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed30.23%
Male Unemployed23.98%
Female Employed5.03%
Male Employed3.06%
showing: 4 rows

Delaware County, Pennsylvania Poverty Rate by Employment Status and Sex

Delaware County, Pennsylvania Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Delaware County, Pennsylvania Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

45.9%

Overall Marriage Rate

49.0%

Male Marriage Rate

43.1%

Female Marriage Rate

Delaware County, Pennsylvania Married by Age and Sex

male

female

Delaware County, Pennsylvania Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.

Delaware County, Pennsylvania Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Delaware County, Pennsylvania Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

23,326

Number of Veterans

21,865

Male Veterans

1,461

Female Veterans

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Delaware County, Pennsylvania Veterans by War

count

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Delaware County, Pennsylvania Veterans by Age

count

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Delaware County, Pennsylvania Veterans by Race

Delaware County, Pennsylvania Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.12%

Veteran Poverty Rate

27.05%

Veteran Disability Rate

Delaware County, Pennsylvania Veterans by Education

LaborForceParticipation

66.3%

Labor Force Participation

61.8%

Employment Rate

6.8%

Unemployment Rate

Delaware County, Pennsylvania Employment by Age

LaborForceParticipation

Delaware County, Pennsylvania Employment by Race

LaborForceParticipation

Delaware County, Pennsylvania Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

71.29%

Born in Delaware County, Pennsylvania

89.24%

Native Born

10.76%

Foreign Born

4.21%

Non Citizen

6.56%

Naturalized

Place of Birth

89.24% of Delaware County, Pennsylvania residents were born in the United States, with 71.29% having been born in Pennsylvania. 4.21% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Delaware County, Pennsylvania Place of Birth

Sources