Delaware County, Pennsylvania Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Delaware County, PA Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around averageHealthier than 88% of counties in Pennsylvania
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B
Income Around averageWealthier than 92% of counties in Pennsylvania
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B
Education Around averageBetter educated than 92% of counties in Pennsylvania
Source: Map AI Methodology
Population: density and quick facts
| Metric | Delaware County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| Population | 578,234 | 13,004,688 | 337,468,954 |
| Population density (per sq mi) | 3036.0 | 282.1 | 86.4 |
| Population growth (%/yr) | 0.36% | 0.21% | 0.59% |
| Median age | 37.6 | 41.6 | 37.3 |
| Households | 216,500 | 5,268,760 | 130,235,071 |
Population in Delaware County grew by 4.1% from 2009 to 2024, reaching 578,234 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Delaware County is Gen Z, aged 13–28, at 21.4% of residents. That is 1.2 points above Pennsylvania as a whole.
- Gen Z 13–28 123,466 21.4% +1.2 pts
- Millennials 29–44 122,869 21.2% +0.2 pts
- Gen X 45–60 118,610 20.5% on par
- Boomers 61–79 97,255 16.8% -2.2 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Pennsylvania, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 51.7% of the people living in Delaware County and men 48.3%.
- Women 51.7% Pennsylvania 50.8%
- Men 48.3% Pennsylvania 49.2%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Delaware County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Delaware County has a the economy index of B, which means it is quite prosperous.
| Metric | Delaware County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| Median household income | $90,232 | $78,249 | $80,455 |
| Income growth (%/yr) | 3.82% | 4.43% | 4.80% |
| Unemployment rate | 6.8% | 5.2% | 5.2% |
The median household income in Delaware County is about 15% higher than in Pennsylvania.
Housing
| Metric | Delaware County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| Median home price | $194,369 | $152,469 | $248,835 |
| Median rent | $1,372 | $1,208 | $1,407 |
| Homeownership rate | 69.6% | 69.3% | 65.2% |
The median home price in Delaware County is about 11.8 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,372 per month for that long.
Commute Time & Mobility
Commuters in Delaware County spend about 52 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 218 hours, about 9.1 full days, spent commuting.
| Metric | Delaware County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 26.1 | 22.4 | 22.4 |
| Round-trip commute (min) | 52.3 | 44.7 | 44.8 |
| Yearly time spent (hours) | 218 | 186 | 187 |
| Estimated yearly cost | $6,754 | $5,779 | $5,790 |
| Work from home | 18.0% | 15.6% | 15.0% |
| Highway traffic (vehicles/day) | 14,466 | 6,862 | 8,813 |
| Local road traffic (vehicles/day) | 2,146 | 1,152 | 1,355 |
Fastest commutes among counties in
Pennsylvania:
Cameron County (11.4 min), Elk County (15.4 min), McKean County (15.9 min).
Slowest:
Pike County (32.5 min), Perry County (32.0 min), Carbon County (30.5 min).
The average commute time in Delaware County is 26 minutes, longer than the 22 minutes in Pennsylvania.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Delaware County has a education index of B, which means it is quite educated.
| Metric | Delaware County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 37.6% | 31.4% | 31.6% |
| Average household size | 2.56 | 2.39 | 2.53 |
Highest education index among counties in
Pennsylvania:
Chester County (0.4), Montgomery County (0.4), Allegheny County (0.4).
Lowest:
Forest County (0.1), Mifflin County (0.2), Juniata County (0.2).
Health
Delaware County has a health index of B, which means it is quite healthy.
| Metric | Delaware County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 77.6 | 78.4 | 78.3 |
| Self-rated poor health | 13.8% | 15.7% | 16.3% |
| Smokers | 16.6% | 20.1% | 19.0% |
Highest health index among counties in
Pennsylvania:
Montgomery County (0.8), Centre County (0.8), Chester County (0.8).
Lowest:
Forest County (0.8), Mifflin County (0.8), Jefferson County (0.8).
Delaware County, PA Compared With Nearby Counties
Delaware County, PA is typical in size for this group, 578,234 residents against a local median of 543,223, so the measures below are close to a like for like comparison. There is no headline here. Every measure below sits within 15% of the median across the nearest counties, which makes Delaware County, PA an unremarkable member of its own neighbourhood rather than an outlier in it.
The largest of those small differences is median household income, 14% below the local median at $90,232 against $105,231. Delaware County, PA has the 4th highest median household income of the 6 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Delaware County, PA | 578,234 | $90,232 #4/6 | $194,369 #4/6 | 26.1 min #5/6 |
| Philadelphia County, PA | 1,579,069 | $62,185 | $209,765 | 30.5 min |
| Montgomery County, PA | 867,535 | $114,626 | $273,761 | 25.5 min |
| Gloucester County, NJ | 306,962 | $105,231 | $186,863 | 25.7 min |
| Salem County, NJ | 65,196 | $82,265 | $146,481 | 23.3 min |
| Chester County, PA | 543,223 | $127,033 | $226,626 | 23.3 min |
Frequently Asked Questions
Common questions about Delaware County, Pennsylvania.
What is the population of Delaware County, Pennsylvania?
About 578,234 people live in Delaware County, Pennsylvania, in 216,500 households of 2.6 people on average. The median age is 37.6, close to the U.S. median of 37.3.
Is Delaware County, Pennsylvania urban or rural?
Averaged over its land area, Delaware County, Pennsylvania has 3,036 people per square mile, a density typical of a city. That is about 35 times the U.S. average of 86.
Is Delaware County, Pennsylvania an affordable place to live?
The median home costs 2.2 times the median household income ($194,369 against $90,232), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,372 a month takes about 18% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is it hard to find a job in Delaware County, Pennsylvania?
Unemployment in Delaware County, Pennsylvania is 6.8%, well above the U.S. rate of 5.2%, so job seekers may face more competition than elsewhere.
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