Delaware County, Pennsylvania Population 2021

Delaware County, Pennsylvania's estimated population is 569,779 with a growth rate of 0.27% in the past year according to the most recent United States census data. Delaware County, Pennsylvania is the 6th largest county inPennsylvania. The 2010 Population was 558,981 and has seen a growth of 1.93% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
2021569,7791,5160.27%
2020568,2631,5160.27%
2019566,7471,5160.27%
2018565,2311,3730.24%
2017563,8581500.03%
2016563,7084830.09%
2015563,2255290.09%
2014562,6961,1970.21%
2013561,4997380.13%
2012560,7611,4860.27%
2011559,2752940.05%
2010558,98111,3302.07%
1990547,651-7,356-1.33%
1980555,007-45,028-7.50%
1970600,03546,8818.48%
1960553,154138,92033.54%
1950414,234103,47833.30%
1940310,75630,49210.88%
1930280,264107,18061.92%
1920173,08455,17846.80%
1910117,90623,14424.42%
190094,76220,07926.89%
189074,68318,58233.12%
188056,10116,69842.38%
187039,4038,80628.78%
186030,5975,91823.98%
185024,6794,88824.70%
184019,7912,46814.25%
183017,3232,51316.97%
182014,810760.52%
181014,7341,92515.03%
180012,8093,32635.07%
17909,4830.00%
2021 Growth Rate
0.27% (1,516)
County Website
Founded
September 26, 1789
County Seat
2010 Population
558,981
Growth Since 2010
1.93% (10,798)
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Delaware County, Pennsylvania Population Growth

Population by Race

Race Population Percentage
White388,10668.75%
Black or African American121,80221.57%
Asian32,0945.68%
Two or More Races14,6482.59%
Some Other Race6,5151.15%
American Indian and Alaska Native1,1670.21%
Native Hawaiian and Other Pacific Islander2220.04%
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Delaware County, Pennsylvania Population by Race

Delaware County, Pennsylvania Population Pyramid $2021

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Delaware County, Pennsylvania Median Age

39


Total

37.1


Male

40.7


Female

Delaware County, Pennsylvania Adults

There are 439,657 adults, (90,402 of whom are seniors) in Delaware County, Pennsylvania.

Delaware County, Pennsylvania Age Dependency

61.6

Age Dependency Ratio

25.9

Old Age Dependency Ratio

35.8

Child Dependency Ratio

Delaware County, Pennsylvania Sex Ratio

Female

292,918

51.88%

Male

271,636

48.12%

Delaware County, Pennsylvania Population by Age

Delaware County, Pennsylvania Renter vs Owner Occupied by Household Type

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Delaware County, Pennsylvania Household Types

Type Owner Renter
Female51.9%48.1%
Non Family52.2%47.8%
Male60.1%39.9%
All68.8%31.2%
Married86.1%13.9%

68.8%

Rate of Home Ownership

Delaware County, Pennsylvania Households and Families

Type Count Average Size Owned
All207,2572.6268.8
Married99,3933.3186.1
Non Family68,2121.1852.2
Female29,9843.3951.9
Male9,6683.2960.1

3.24

Average Family Size

2.62

Average Household Size

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Delaware County, Pennsylvania Households by Type

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Education Attained Count Percentage
Less Than 9th Grade8,3402.18%
9th to 12th Grade18,1904.75%
High School Graduate115,78230.20%
Some College62,05916.19%
Associates Degree29,3527.66%
Bachelors Degree85,76522.37%
Graduate Degree63,83616.65%
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Delaware County, Pennsylvania Educational Attainment by Sex (over 25)

Delaware County, Pennsylvania Educational Attainment by Race

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Race Total High School Bachelors
White271,974258,995115,664
Black73,59765,98116,061
Asian21,86318,75612,722
Hispanic11,3808,9213,224
2+ Races5,2704,7242,032
Other Race3,8702,723793
Native American640411207
Islander12014

The highest rate of high school graduation is among white people with a rate of 95.23%.

The highest rate of bachelors degrees is among asian people with a rate of 58.19%.

Delaware County, Pennsylvania Educational Attainment by Race

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Name Average Male Female
Overall$47,899$55,884$40,740
Less Than 9th Grade$25,965$28,320$21,744
High School Graduate$34,415$42,453$27,432
Some College$41,833$50,589$36,417
Bachelors Degree$59,205$72,054$50,247
Graduate Degree$82,313$104,529$68,984

$47,899

Average Earnings

$55,884

Average Male

$40,740

Average Female

Delaware County, Pennsylvania Earnings by Educational Attainment

Delaware County, Pennsylvania Language by Age

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Delaware County, Pennsylvania Language

87.69% of Delaware County, Pennsylvania residents speak only English, while 12.31% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 4.77% of the population.

Delaware County, Pennsylvania Language

Delaware County, Pennsylvania Poverty by Race

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Name Total In Poverty Poverty Rate
Black116,99923,18319.81%
White363,98221,6275.94%
Hispanic19,9433,91119.61%
Asian31,4543,60011.45%
Multiple13,9722,14115.32%
Other6,0331,94732.27%
Native1,12235231.37%
Islander2174721.66%

9.99%

Overall Poverty Rate

8.85%

Male Poverty Rate

11.04%

Female Poverty Rate

Poverty in Delaware County, Pennsylvania

The race most likely to be in poverty in Delaware County, Pennsylvania is Other, with 32.27% below the poverty level.

The race least likely to be in poverty in Delaware County, Pennsylvania is White, with 5.94% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.76%. Among those working part-time, it was 11.85%, and for those that did not work, the poverty rate was 17.44%.

Delaware County, Pennsylvania Poverty

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Name Poverty
Less Than 9th Grade21.30%
High School11.58%
Some College8.45%
Bachelors or Greater3.49%

Delaware County, Pennsylvania Poverty Rate by Education

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Rate Poverty
Female Unemployed27.98%
Male Unemployed19.44%
Female Employed5.51%
Male Employed3.42%

Delaware County, Pennsylvania Poverty Rate by Employment Status and Sex

Delaware County, Pennsylvania Income by Household Type

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Name Median Mean
Households$74,477$105,826
Families$96,632$128,090
Married Families$119,971$152,928
Non Families$40,658$55,993
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Income by Household Type

Delaware County, Pennsylvania Marital Status

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Marriage Rates

46.1%

Overall Marriage Rate

48.8%

Male Marriage Rate

43.7%

Female Marriage Rate

Delaware County, Pennsylvania Married by Age and Sex

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Delaware County, Pennsylvania Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

Delaware County, Pennsylvania Marital Status by Race

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Delaware County, Pennsylvania Marital Status

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26,172

Number of Veterans

24,763

Male Veterans

1,409

Female Veterans

War Veterans
Vietnam9,839
First Gulf War3,561
Second Gulf War2,977
Korea2,885
World War II1,536

Delaware County, Pennsylvania Veterans by War

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Age Group Veterans
75+7,861
65 to 747,625
35 to 544,620
55 to 644,609
18 to 341,457

Delaware County, Pennsylvania Veterans by Age

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Name Veterans % of Total
White21,1086.71%
Black4,2484.85%
Hispanic4443.10%
2+ Races2764.04%
Asian2340.94%
Other Race1813.95%
Native American11114.82%
Islander147.65%

Delaware County, Pennsylvania Veterans by Race

Delaware County, Pennsylvania Veterans by Education

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5.82%

Veteran Poverty Rate

26.71%

Veteran Disability Rate

Delaware County, Pennsylvania Veterans by Education

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65.2%

Labor Force Participation

61.5%

Employment Rate

5.6%

Unemployment Rate

Delaware County, Pennsylvania Employment by Age

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Delaware County, Pennsylvania Employment by Race

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Delaware County, Pennsylvania Employment by Education

Origin of Non-Citizens

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

Origin of Naturalized Citizens

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71.49%

Born in Delaware County, Pennsylvania

89.58%

Native Born

10.42%

Foreign Born

4.47%

Non Citizen

5.96%

Naturalized

Place of Birth

89.58% of Delaware County, Pennsylvania residents were born in the United States, with 71.49% having been born in Pennsylvania. 4.47% 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

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources