States · Pennsylvania · Delaware County

Aldan, Pennsylvania.

A borough in Delaware County. Zillow publishes no home prices for it: see Delaware County’s.

Living in Aldan, Delaware County, Pennsylvania

Aldan is a borough of 4,244 people in Delaware County. Half its households earn more than $74,514 a year and half less, against $89,546 across Delaware County; 9% of its people live below the poverty line. 74% of its homes are lived in by their owners and 26% are rented. Unemployment in Delaware County was 4.0% in August 2026, and the county had 0.3% more jobs in 2025 than the year before. The most residents work in schools and health care, then professional services.

People 4,244 in the 2020 census; median age 40.0
Household income $74,514 the median, give or take $11,384 · Delaware County: $89,546
Unemployment 4.0% Delaware County, August 2026; 5.3% a year before
Homes 74% lived in by their owners; 26% rented
  • 1,632households
  • 29%of adults have a degree
  • 9%below the poverty line
  • 42 mintypical commute
  • 12%work from home

What residents work in

  • Schools, hospitals and social care38%
  • Professional and business services13%
  • Shops (retail)11%
  • Transport, warehouses and utilities10%
  • Banks, insurance and property8%
  • Other services7%

Employed residents by industry, from the Census survey. Delaware County had 219,222 jobs in 2025, 0.3% more than the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in January, 41° and 26°; warmest in July, 88° and 70° 20° 40° 60° 80° J 41° 26° F M A M J J 88° 70° A S O N D
Average daily high and low for each month: coldest in January, 41° and 26°; warmest in July, 88° and 70° 20° 40° 60° 80° J 41° 26° F M A M J J 88° 70° A S O N D

Coldest in January, with highs near 41° and lows near 26°; warmest in July, with highs near 88° and lows near 70°. About 23 inches of snow and 44 inches of rain and melted snow a year.

Average daily high and low, 1991–2020, at the Philadelphia International Airport weather station, 5 miles away (NOAA).

Largest workplaces in Delaware County

  1. Villanova UniversityUniversity or college3,306
  2. The Boeing CompanyAircraft manufacturing3,071
  3. Contemporary Services2,644
  4. Crozer Chester Medical CenterGeneral hospital1,932FTE
  5. Lower Merion SDSchool district1,636FTE
  6. Widener UniversityUniversity or college1,428
  7. Upper Darby SDSchool district1,249FTE
  8. Elwyn Media CampusGroup homes, intellectual and developmental disability1,152

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 380 workplaces with 20 or more staff, 48,480 people in all across the county; Aldan has one of its own. Colleges come from IPEDS (NCES, 2023–24), hospitals from their Medicare cost reports (CMS, 2023) and school districts from the Common Core of Data (NCES, 2023–24); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.

Natural hazards

  1. Winter weatherRelatively high
  2. Heat wavesRelatively moderate
  3. Strong windRelatively moderate
  4. LightningRelatively moderate
  5. Cold wavesRelatively moderate

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Aldan’s census tracts, against the rest of the country; all of them together, very low. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Delaware County.