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Where am ILOCATED

Delaware County, Pennsylvania

Delaware County, Pennsylvania, has 580,937 residents (July 2025 estimate). Its county seat is Media. It uses Eastern Time and covers 184 sq mi (476 km²) of land.

PittsburghAllentown
Delaware County in Pennsylvania
Philadelphia CountyChesterDrexel HillArdmoreYeadon
Delaware County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
580,937
Land area
184 sq mi (476 km²)
County seat or government
Media
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$89,546 ± $1,375
Median home value
$332,200 ± $4,050
Median rent, with utilities
$1,372 ± $22
Homes lived in by their owners
69.6% ± 0.8 points
County type
County
Metro or micro area
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro areaCentral county
Water area
6.79 sq mi (17.6 km²)
State
Pennsylvania
County code (FIPS)
42045
Coordinates (central point)
39.916685, -75.398818
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Delaware County

Time zoneLocal time and UTC offsetNext clock change
Eastern TimeAmerica/New_YorkUTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 1938254,127 people
  2. 1908241,541 people
  3. 1906338,172 people
  4. 1908337,590 people
  5. 1901335,064 people
  6. 1908733,528 people
  7. 1902632,725 people
  8. 1905029,373 people
  9. 1906425,277 people
  10. 1901823,505 people
  11. 1902322,247 people
  12. 1907321,915 people
All 45
  1. 1901021,827 people
  2. 1901421,427 people
  3. 1934220,770 people
  4. 1900820,697 people
  5. 1906119,896 people
  6. 1901516,464 people
  7. 1909615,249 people
  8. 1900314,255 people
  9. 1903613,668 people
  10. 1915313,018 people
  11. 1908612,930 people
  12. 1931212,283 people
  13. 1907811,683 people
  14. 1906011,524 people
  15. 1908511,230 people
  16. 1931710,864 people
  17. 1908110,089 people
  18. 190798,745 people
  19. 190338,261 people
  20. 190326,772 people
  21. 190766,441 people
  22. 190706,359 people
  23. 190416,308 people
  24. 190745,934 people
  25. 190224,482 people
  26. 190293,980 people
  27. 190943,929 people
  28. 190433,317 people
  29. 193732,357 people
  30. 19319792 people
  31. 19052631 people
  32. 19017355 people
  33. 191130 people

45 ZIP Code areas overlap Delaware County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Delaware County, largest first

  1. Upper Darby Township85,486 people
  2. Haverford Township50,874 people
  3. Radnor Township33,718 people
  4. Ridley Township30,923 people
  5. Springfield Township25,038 people
  6. Marple Township24,216 people
  7. Concord Township18,288 people
  8. Upper Chichester Township16,895 people
  9. Aston Township16,738 people
  10. Middletown Township16,732 people
  11. Newtown Township15,260 people
  12. Nether Providence Township14,426 people
All 21
  1. Upper Providence Township10,853 people
  2. Bethel Township9,669 people
  3. Darby Township9,191 people
  4. Thornbury Township6,927 people
  5. Edgmont Township4,476 people
  6. Chester Township4,066 people
  7. Tinicum Township3,980 people
  8. Chadds Ford Township3,966 people
  9. Lower Chichester Township3,386 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Pennsylvania, by county

School districts in Delaware County, largest first

  1. West Chester Area School District115,022 people
  2. Upper Darby School District93,785 people
  3. Haverford Township School District50,874 people
  4. William Penn School District43,286 people
  5. Ridley School District40,746 people
  6. Chester-Upland School District40,742 people
  7. Marple Newtown School District39,476 people
  8. Rose Tree Media School District37,931 people
  9. Radnor Township School District33,718 people
  10. Garnet Valley School District30,905 people
  11. Southeast Delco School District30,862 people
  12. Springfield School District27,811 people
All 17
  1. Penn-Delco School District27,390 people
  2. Unionville-Chadds Ford School District24,585 people
  3. Chichester School District24,116 people
  4. Interboro School District23,551 people
  5. Wallingford-Swarthmore School District23,136 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Chester, Pennsylvania (city)33,619 people
  2. Drexel Hill, Pennsylvania (CDP)30,451 people
  3. Ardmore, Pennsylvania (CDP)13,909 people
  4. Yeadon, Pennsylvania (borough)12,181 people
  5. Lansdowne, Pennsylvania (borough)11,122 people
  6. Darby, Pennsylvania (borough)10,687 people
  7. Broomall, Pennsylvania (CDP)10,679 people
  8. Woodlyn, Pennsylvania (CDP)9,736 people
  9. Villanova, Pennsylvania (CDP)9,186 people
  10. Village Green-Green Ridge, Pennsylvania (CDP)9,073 people
  11. Collingdale, Pennsylvania (borough)8,897 people
  12. Folsom, Pennsylvania (CDP)8,671 people
All 46
  1. Brookhaven, Pennsylvania (borough)8,331 people
  2. Ridley Park, Pennsylvania (borough)7,261 people
  3. Glenolden, Pennsylvania (borough)7,220 people
  4. Clifton Heights, Pennsylvania (borough)6,832 people
  5. Folcroft, Pennsylvania (borough)6,772 people
  6. Wayne, Pennsylvania (CDP)6,635 people
  7. Swarthmore, Pennsylvania (borough)6,550 people
  8. Prospect Park, Pennsylvania (borough)6,417 people
  9. Sharon Hill, Pennsylvania (borough)6,002 people
  10. Norwood, Pennsylvania (borough)5,934 people
  11. Bryn Mawr, Pennsylvania (CDP)5,880 people
  12. Media, Pennsylvania (borough)5,870 people
  13. Boothwyn, Pennsylvania (CDP)4,774 people
  14. Aldan, Pennsylvania (borough)4,259 people
  15. Linwood, Pennsylvania (CDP)3,921 people
  16. St. Davids, Pennsylvania (CDP)3,875 people
  17. Rosemont, Pennsylvania (CDP)3,421 people
  18. Upland, Pennsylvania (borough)3,057 people

See all 46 cities, towns and communities in Delaware County, largest first

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Philadelphia County, Pennsylvania15 mi northeast
  2. Gloucester County, New Jersey19 mi southeast
  3. Chester County, Pennsylvania19 mi west
  4. Montgomery County, Pennsylvania20 mi north
  5. New Castle County, Delaware27 mi southwest

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.