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Delaware County, Pennsylvania Demographics 2026

Delaware County, Pennsylvania has a population of 576,195, the 5th most populous county in Pennsylvania. The median household income is $88,576 and the median home value is $302,400. The poverty rate is 10.2%.

Delaware County Quick Facts

Population 576,195
Median Household Income $88,576
Median Home Value $302,400
Poverty Rate 10.2%
Unemployment Rate 6.9%
Median Age 39.0 years
Homeownership Rate 69.6%
Affordability Ratio 3.4x
Bachelor's Degree+ 41.6%
High School Graduation 93.6%
Cities/Places 27
Population 576,195 5th of 67
Median Income $88,576 16% higher state
Poverty Rate 10.2%
Unemployment 6.9%

Economy & Housing

Employment

6.9% Unemployment Rate State: 5.3% | National: 5.2%
65.9% Labor Force Participation

Housing Overview

Owner 69.6%
Renter 30.4%
Affordability Index Affordable
3.4x home value to income ratio

People & Demographics

Diversity Index

54out of 100
Moderate Diversity

Moderate diversity with one or two groups making up the majority.

State average: 43 | National average: 60

Education

Cities & Places in Delaware County

CityPopulationMedian IncomePovertyHome Value
Chester city33,209$39,80930.8%$85,400
Yeadon borough12,091$57,3368.2%$172,500
Lansdowne borough11,064$69,26110.6%$199,200
Darby borough10,664$45,12831.5%$101,900
Brookhaven borough8,288$96,3933.4%$265,500
Ridley Park borough7,245$94,4855.4%$261,900
Glenolden borough7,207$71,14515.8%$203,100
Clifton Heights borough6,821$69,94016.8%$189,100
Folcroft borough6,748$58,89917.1%$140,000
Swarthmore borough6,524$146,9922.8%$557,900
Prospect Park borough6,402$65,77413.4%$239,700
Sharon Hill borough5,978$68,52923.8%$163,200
Norwood borough5,915$89,1357.0%$227,500
Media borough5,868$86,2194.1%$398,400
Aldan borough4,219$78,1477.2%$227,900
Upland borough3,056$60,20014.3%$173,300
Chester Heights borough2,922$110,7295.3%$296,600
Morton borough2,768$54,8818.1%$246,400
East Lansdowne borough2,699$66,61116.8%$201,400
Colwyn borough2,683$53,09229.0%$105,800
Parkside borough2,304$91,9028.1%$188,700
Marcus Hook borough2,236$50,95211.9%$108,000
Eddystone borough2,212$53,66517.5%$117,500
Trainer borough1,725$85,17021.6%$120,900
Millbourne borough1,301$43,62529.1%$211,800
Rose Valley borough1,190$218,7503.8%$694,200
Rutledge borough982$126,0002.4%$361,400

Explore Pennsylvania Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Delaware County is located in Pennsylvania with a total population of 576,195. It is the 5th most populous county out of 67 in Pennsylvania. The county encompasses 27 Census-designated places.

Age Demographics

The median age in Delaware County is 39.0 years. This is 5% lower than the state median of 40.9 years.

Economy, Income & Housing

The median household income in Delaware County is $88,576. This is 16% higher than the state median of $76,081. Compared to the national median of $78,538, household income here is 13% higher. The poverty rate stands at 10.2%. This is 14% lower than the state poverty rate of 11.8%. The unemployment rate is 6.9%. This is 31% higher than the state rate of 5.3%. The median home value is $302,400. Housing costs are 26% higher than the state median of $240,500. The home-value-to-income ratio is 3.4x. 69.6% of occupied housing units are owner-occupied.

Race & Ethnicity

The largest racial or ethnic group in Delaware County is White (non-Hispanic), making up 63.3% of the population. Black or African American residents account for 21.7%. The Black or African American population is significantly higher than the state average (21.7% vs 10.3%). The Asian population is significantly higher than the state average (6.1% vs 3.7%).

Education

41.6% of residents aged 25 and older hold a bachelor's degree or higher. This places Delaware County in the top 10% of all cities in the state for educational attainment. This is 21% higher than the state rate of 34.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.6%. Notably, 18.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Frequently Asked Questions

What is the population of Delaware County, Pennsylvania?

Delaware County has a population of 576,195, making it the 5th most populous county in Pennsylvania.

What is the median income in Delaware County?

The median household income in Delaware County is $88,576 with a poverty rate of 10.2%.

How many cities are in Delaware County, Pennsylvania?

Delaware County contains 27 Census-designated places.