Delaware County, Pennsylvania Population 2024

577,567

Delaware County, Pennsylvania's estimated 2024 population is 577,567 with a growth rate of 0.15% 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 3.32% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029581,8028470.15%
2028580,9558470.15%
2027580,1088470.15%
2026579,2618470.15%
2025578,4148470.15%
2024577,5678470.15%
2023576,7208470.15%
2022575,873-1,019-0.18%
2021576,8925360.09%
2020576,3569,8501.74%
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%
2010559,00900%
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%
17909,483-572,319-98.37%
2024 Growth Rate
0.15% (847)
County Website
Delaware County
County Seat
Media
2020 Population
576,356
Area
184 mi²
Density
3139 people/mi²
Growth Since 2020
0.21% (1,211)
Founded
September 26, 1789

Population by Race

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%

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

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

Education Attained
Count
Percentage
9th to 12th Grade16,7624.28%
Associates Degree31,5458.05%
Bachelors Degree91,67523.41%
Graduate Degree68,41317.47%
High School Graduate108,27227.64%
Less Than 9th Grade8,6862.22%
Some College66,31916.93%

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

Race
Total
High School
Bachelors
White268,621257,075122,420
Black77,64370,19416,672
Asian24,21021,14413,699
Hispanic13,12410,0203,928
2+ Races10,54010,0544,629
Other Race6,2543,8181,058
Native American379293138
Islander1941940

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

Name
Average
Male
Female
Bachelors Degree$70,042$83,593$59,437
Graduate Degree$94,952$118,267$81,757
High School Graduate$39,234$47,871$31,808
Less Than 9th Grade$31,238$35,314$27,072
Overall$55,211$64,225$47,430
Some College$45,707$54,406$38,619

$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

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%

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

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

Delaware County, Pennsylvania Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed30.23%
Male Unemployed23.98%
Female Employed5.03%
Male Employed3.06%

Delaware County, Pennsylvania Poverty Rate by Employment Status and Sex

Delaware County, Pennsylvania Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$112,011$147,889
Households$86,390$121,862
Married Families$138,819$177,286
Non Families$46,951$66,608

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

War
Veterans
Vietnam8,328
Second Gulf War3,658
First Gulf War3,657
Korea2,314
World War II1,040

Delaware County, Pennsylvania Veterans by War

count

Age Group
Veterans
75+7,395
65 to 746,104
55 to 644,509
35 to 543,812
18 to 341,506

Delaware County, Pennsylvania Veterans by Age

count

Name
Veterans
% of Total
White17,8745.8%
Black4,1204.49%
2+ Races5604.02%
Other Race4506.3%
Hispanic3702.27%
Asian2250.83%
Native American8418.38%
Islander136.53%

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