Chester County, Pennsylvania

Chester County, Pennsylvania, has 557,116 residents (July 2025 estimate). Its county seat is West Chester. It uses Eastern Time and covers 751 sq mi (1,944 km²) of land.

PittsburghAllentown
Chester County in Pennsylvania
Delaware CountyLancaster CountyMontgomery CountyWest ChesterPhoenixvilleCoatesvilleLionville
Chester County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
557,116
Land area
751 sq mi (1,944 km²)
County seat or government
West Chester
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$127,208 ± $2,511
Median home value
$485,600 ± $4,003
Median rent, with utilities
$1,763 ± $28
Homes lived in by their owners
75.1% ± 0.6 points
County type
County
Metro or micro area
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro areaCentral county
Water area
8.65 sq mi (22.4 km²)
State
Pennsylvania
County code (FIPS)
42029
Coordinates (central point)
39.974029, -75.749751

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 Chester 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. 1932055,941 people
  2. 1938254,127 people
  3. 1933553,629 people
  4. 1938049,856 people
  5. 1946045,423 people
  6. 1908733,528 people
  7. 1935529,425 people
  8. 1934823,621 people
  9. 1907321,915 people
  10. 1934121,709 people
  11. 1934220,770 people
  12. 1946518,564 people
All 46
  1. 1936318,231 people
  2. 1942517,219 people
  3. 1934412,827 people
  4. 1939012,546 people
  5. 1947512,298 people
  6. 1931212,283 people
  7. 1931111,692 people
  8. 1935211,484 people
  9. 1935010,945 people
  10. 1931710,864 people
  11. 193438,450 people
  12. 193658,006 people
  13. 193017,814 people
  14. 193337,471 people
  15. 175557,251 people
  16. 193836,537 people
  17. 195436,401 people
  18. 195206,277 people
  19. 175276,094 people
  20. 193626,092 people
  21. 193305,957 people
  22. 193102,950 people
  23. 193732,357 people
  24. 193721,854 people
  25. 19319792 people
  26. 19345768 people
  27. 19374434 people
  28. 19316389 people
  29. 19375234 people
  30. 19358191 people
  31. 19457148 people
  32. 19369122 people
  33. 1936721 people
  34. 194420 people

46 ZIP Code areas overlap Chester 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 Chester County, largest first

  1. Tredyffrin Township31,922 people
  2. West Goshen Township23,553 people
  3. West Whiteland Township20,249 people
  4. Uwchlan Township19,394 people
  5. East Goshen Township18,441 people
  6. East Whiteland Township14,774 people
  7. Caln Township14,742 people
  8. West Bradford Township14,681 people
  9. Upper Uwchlan Township13,010 people
  10. New Garden Township11,449 people
  11. Willistown Township11,366 people
  12. Westtown Township11,254 people
All 57
  1. Easttown Township11,067 people
  2. East Bradford Township10,753 people
  3. East Brandywine Township10,148 people
  4. East Nottingham Township9,068 people
  5. London Grove Township8,980 people
  6. West Caln Township8,980 people
  7. Kennett Township8,968 people
  8. Schuylkill Township8,864 people
  9. East Pikeland Township8,519 people
  10. North Coventry Township8,442 people
  11. Honey Brook Township8,401 people
  12. Valley Township8,002 people
  13. East Fallowfield Township7,824 people
  14. East Marlborough Township7,714 people
  15. West Brandywine Township7,669 people
  16. East Vincent Township7,608 people
  17. East Coventry Township7,209 people
  18. West Vincent Township6,841 people
  19. Charlestown Township6,320 people
  20. New London Township5,844 people
  21. Penn Township5,744 people
  22. Lower Oxford Township5,660 people
  23. East Caln Township5,608 people
  24. Pocopson Township4,469 people
  25. Franklin Township4,448 people
  26. Sadsbury Township4,371 people
  27. Birmingham Township4,098 people
  28. West Pikeland Township4,038 people
  29. Pennsbury Township3,887 people
  30. Wallace Township3,768 people
  31. London Britain Township3,201 people
  32. Thornbury Township3,179 people
  33. West Nottingham Township2,823 people
  34. South Coventry Township2,808 people
  35. West Sadsbury Township2,633 people
  36. West Fallowfield Township2,625 people
  37. Warwick Township2,613 people
  38. Upper Oxford Township2,586 people
  39. Londonderry Township2,566 people
  40. West Nantmeal Township2,103 people
  41. Elk Township1,762 people
  42. East Nantmeal Township1,715 people
  43. Highland Township1,316 people
  44. Newlin Township1,240 people
  45. West Marlborough Township777 people

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

School districts in Chester County, largest first

  1. West Chester Area School District115,022 people
  2. Downingtown Area School District78,902 people
  3. Coatesville Area School District67,311 people
  4. Spring-Ford Area School District54,246 people
  5. Tredyffrin-Easttown School District42,989 people
  6. Owen J. Roberts School District37,236 people
  7. Phoenixville Area School District36,835 people
  8. Great Valley School District35,895 people
  9. Avon Grove School District32,099 people
  10. Kennett Consolidated School District28,226 people
  11. Oxford Area School District27,724 people
  12. Twin Valley School District25,958 people
All 14
  1. Unionville-Chadds Ford School District24,585 people
  2. Octorara Area School District18,883 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. West Chester, Pennsylvania (borough)20,666 people
  2. Phoenixville, Pennsylvania (borough)19,452 people
  3. Coatesville, Pennsylvania (city)13,353 people
  4. Downingtown, Pennsylvania (borough)8,255 people
  5. Lionville, Pennsylvania (CDP)7,683 people
  6. Exton, Pennsylvania (CDP)6,772 people
  7. Paoli, Pennsylvania (CDP)6,362 people
  8. Kennett Square, Pennsylvania (borough)6,243 people
  9. Chesterbrook, Pennsylvania (CDP)5,839 people
  10. Oxford, Pennsylvania (borough)5,825 people
  11. Parkesburg, Pennsylvania (borough)3,937 people
  12. Thorndale, Pennsylvania (CDP)3,854 people
All 47
  1. Berwyn, Pennsylvania (CDP)3,680 people
  2. Spring City, Pennsylvania (borough)3,657 people
  3. Malvern, Pennsylvania (borough)3,435 people
  4. Frazer, Pennsylvania (CDP)3,389 people
  5. West Grove, Pennsylvania (borough)2,798 people
  6. Caln, Pennsylvania (CDP)2,220 people
  7. Eagleview, Pennsylvania (CDP)2,050 people
  8. Lincoln University, Pennsylvania (CDP)2,017 people
  9. Kenilworth, Pennsylvania (CDP)2,013 people
  10. Honey Brook, Pennsylvania (borough)1,941 people
  11. South Coatesville, Pennsylvania (borough)1,928 people
  12. South Pottstown, Pennsylvania (CDP)1,893 people
  13. Devon, Pennsylvania (CDP)1,806 people
  14. Hayti, Pennsylvania (CDP)1,803 people
  15. Nottingham, Pennsylvania (CDP)1,508 people
  16. Westwood, Chester County, Pennsylvania (CDP)1,501 people
  17. Elverson, Pennsylvania (borough)1,458 people
  18. Chadds Ford, Pennsylvania (CDP)1,341 people

See all 47 cities, towns and communities in Chester County, largest first

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Delaware County, Pennsylvania19 mi east
  2. Montgomery County, Pennsylvania26 mi northeast
  3. Lancaster County, Pennsylvania27 mi west
  4. New Castle County, Delaware28 mi south
  5. Cecil County, Maryland30 mi south
  6. Berks County, Pennsylvania32 mi north

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.