Darby, PA Demographics

Population 10,708 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Darby, PA map of median age by neighborhood
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Population and households in Darby

Household size in Darby

Household size, people per household
PeriodDarbyPhiladelphia areaPennsylvaniaU.S.
2006–103.052.642.512.68
2010–143.362.682.532.73
2015–193.012.652.502.71
2020–242.642.572.462.65
Change−0.41−0.07−0.05−0.03
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At 2.64 people per household, Darby sits close to the national average of 2.65. Since 2006–10, household size has dropped from 3.05, a much bigger shift than nationally. The biggest households, usually families with children, are concentrated in the southeast.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in Darby

Median age, years
PeriodDarbyPhiladelphia areaPennsylvaniaU.S.
2006–1031.238.540.337.7
2010–1429.939.341.038.6
2015–1934.440.341.839.6
2020–2434.440.442.040.1
Change+3.2+1.9+1.7+2.3
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Darby is young: half of its residents are under 34.4, compared with a national median of 40.1. The population tilts toward young adults and children. The median age has climbed from 31.2 in 2006–10, in line with the national trend. Only nine of the 496 Pennsylvania cities with 5,000+ people are younger.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in Darby

Single-parent households, % of households
PeriodDarbyPhiladelphia areaPennsylvaniaU.S.
2006–1035.7%12.2%10.5%12.3%
2010–1438.6%11.8%10.6%12.3%
2015–1930.3%11.7%10.5%11.6%
2020–2430.2%12.1%10.7%11.6%
Change−5.6 pts−0.1 pts+0.2 pts−0.6 pts
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Single-parent households are common in Darby: 30.2% of all households, against 11.6% nationally. The single-parent share is down 5.6 points from 2006–10, a much bigger shift than nationally. No other Pennsylvania city with 5,000+ people has a higher share of single-parent households.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in Darby

Renters in Darby

Renters, % of occupied homes
PeriodDarbyPhiladelphia areaPennsylvaniaU.S.
2006–1050.3%30.2%29.0%33.3%
2010–1454.7%32.1%30.5%35.6%
2015–1952.0%32.7%31.1%36.0%
2020–2450.0%33.2%30.7%34.8%
Change−0.3 pts+3.0 pts+1.7 pts+1.5 pts
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Most households in Darby rent: 50.0% of occupied homes are rented, far above the national share of 34.8%. Expect more apartments, and more turnover, than in owner-heavy areas. About three in ten owners (29.5%) have paid off their mortgages, well below the national share of 39.8%. Of the 496 Pennsylvania cities with 5,000+ people, only 14 have a higher share of renters.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in Darby

Vacant homes, % of all homes
PeriodDarbyPhiladelphia areaPennsylvaniaU.S.
2006–1016.7%9.1%10.3%11.4%
2010–1418.9%9.2%10.5%11.4%
2015–1914.5%9.0%10.7%11.1%
2020–2413.5%6.9%9.1%9.6%
Change−3.2 pts−2.2 pts−1.2 pts−1.8 pts
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Vacancy runs high in Darby: 13.5% of homes are empty, against 9.6% nationally. The count includes vacation homes and homes between owners or tenants, not just abandoned ones. Vacancy has fallen 3.2 points since 2006–10, mirroring the country.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in Darby

Age of homes, median year built
PeriodDarbyPhiladelphia areaPennsylvaniaU.S.
2006–101941196419631974
2010–141942196519641975
2015–191946196519651977
2020–241947196819671980
Change+6+4+4+6
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The housing in Darby is old by national standards: the median home dates to 1947, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1941 in 2006–10, a sign of steady new building. Newer construction is concentrated in the northwest, while the center has the oldest housing. Of the 496 Pennsylvania cities with 5,000+ people, only 26 have older homes.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in Darby

Rent, per month
PeriodDarbyPhiladelphia areaPennsylvaniaU.S.
2006–10$959$1,049$829$965
2010–14$1,003$1,147$923$1,040
2015–19$1,075$1,281$1,039$1,213
2020–24$1,305$1,631$1,323$1,571
Change+$346+$582+$494+$606
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A typical rental in Darby costs $1,305 a month with utilities, below the national median of $1,571. Rents are up $346 a month from 2006–10, a 36% rise, a slower climb than the nation's. Rent takes 38.1% of the typical renter's income, well over the 30% mark often used to define affordable rent, so many renters here are stretched. Renters on a budget will find the lowest rents in the center; the highest are in the northwest.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in Darby

Bachelor's degrees in Darby

Bachelor's degrees, % of adults 25+
PeriodDarbyPhiladelphia areaPennsylvaniaU.S.
2006–1012.0%32.7%27.2%28.4%
2010–147.8%34.4%28.7%29.6%
2015–1917.4%37.9%31.8%32.1%
2020–2415.1%42.3%35.6%35.6%
Change+3.1 pts+9.6 pts+8.3 pts+7.2 pts
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College degrees are relatively uncommon in Darby: 15.1% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree is up 3.1 points from 2006–10, as it has nationally. Only 17 of the 496 Pennsylvania cities with 5,000+ people have a lower share of college graduates.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in Darby

High school graduates, % of adults 25+
PeriodDarbyPhiladelphia areaPennsylvaniaU.S.
2006–1083.9%87.5%87.3%84.9%
2010–1486.9%88.9%88.8%86.1%
2015–1987.0%90.5%90.3%87.7%
2020–2488.4%91.9%91.8%89.3%
Change+4.4 pts+4.4 pts+4.5 pts+4.3 pts
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High school completion in Darby is close to the national rate: 88.4% of adults have a diploma or equivalent, against 89.3%. The rate is lower than in the wider Philadelphia area (91.9%). Since 2006–10, the share with a diploma has risen 4.4 points, mirroring the country.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in Darby

Unemployment, % of the labor force
PeriodDarbyPhiladelphia areaPennsylvaniaU.S.
2006–1018.1%8.4%7.5%8.1%
2010–1418.2%10.2%8.8%9.4%
2015–198.1%6.3%5.5%5.6%
2020–2417.9%6.1%5.4%5.4%
Change−0.1 pts−2.3 pts−2.1 pts−2.7 pts
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Unemployment in Darby runs well above the national rate: 17.9% of the labor force was out of work and looking, against 5.4%. Darby has the highest unemployment rate of any Pennsylvania city with 5,000+ people. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

Darby compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Darby2.6434.430.2%50.0%13.5%1947$1,30515.1%88.4%17.9%
Colwyn2.9231.517.0%55.4%9.4%1948$1,35412.3%85.2%20.9%
Yeadon2.3844.414.7%55.0%4.9%1953$1,29626.3%95.5%10.6%
Collingdale2.4540.317.0%41.6%8.1%1951$1,13517.5%86.7%7.1%
Sharon Hill2.9634.924.8%40.0%14.4%1956$1,41220.2%94.0%14.5%
Aldan2.5840.113.0%27.6%5.8%1955$1,34529.2%92.9%4.5%
East Lansdowne2.3135.214.4%36.4%7.8%1938$1,62622.7%89.7%5.7%
Lansdowne2.4640.419.8%35.6%5.6%1945$1,28435.1%92.5%7.5%
Primos2.3139.713.6%41.1%3.1%1958$1,36933.1%93.6%4.4%
Glenolden2.6841.011.2%22.2%5.1%1956$1,46424.0%95.6%6.6%
Clifton Heights2.4938.210.7%34.0%5.4%1958$1,42427.1%94.2%11.5%

All figures 2020–24.

Cities with similar populations: Marysville, MI · Madeira, OH · Madison, NC · Uncasville, CT · Manati, PR · Umatilla, FL · Tyrone, GA · Marathon, FL · Marble Falls, TX · Markham, IL

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Darby. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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