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About this map

Residents per square mile of land (water excluded). Under 50 is rural, a few hundred is small-town, 2,500+ is urban, and 10,000+ is big-city dense.

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024).

U.S.
95/sq mi
Pennsylvania
291/sq mi
Rankings
Full list

Top and bottom zip codes in Pennsylvania

Zip codes with 1,000+ residents

Most densely populated zip codes

See all
  1. 115282Pittsburgh43,075/sq mi
  2. 219103Philadelphia40,155/sq mi
  3. 319102Philadelphia33,128/sq mi
  4. 416654Huntingdon29,781/sq mi
  5. 519147Philadelphia29,674/sq mi
  6. 619107Philadelphia27,252/sq mi
  7. 719139Philadelphia24,358/sq mi
  8. 819130Philadelphia24,346/sq mi
  9. 919149Philadelphia23,843/sq mi
  10. 1019146Philadelphia23,816/sq mi

Most sparsely populated zip codes

See all
  1. 116720Austin5/sq mi
  2. 216836Frenchville9/sq mi
  3. 315860Sigel9/sq mi
  4. 415870Wilcox10/sq mi
  5. 516845Karthaus10/sq mi
  6. 615868Weedville10/sq mi
  7. 716922Galeton11/sq mi
  8. 818614Dushore13/sq mi
  9. 915535Clearville13/sq mi
  10. 1017771Trout Run13/sq mi

Population density by county in Pennsylvania

  1. 1Philadelphia County11,760/sq mi
  2. 2Delaware County3,151/sq mi
  3. 3Montgomery County1,797/sq mi
  4. 4Allegheny County1,696/sq mi
  5. 5Lehigh County1,097/sq mi
  6. 6Bucks County1,071/sq mi
  7. 7Northampton County862/sq mi
  8. 8Chester County730/sq mi
  9. 9Lancaster County591/sq mi
  10. 10Dauphin County552/sq mi
  11. 11York County512/sq mi
  12. 12Berks County506/sq mi
  13. 13Cumberland County492/sq mi
  14. 14Lackawanna County471/sq mi
  15. 15Lebanon County399/sq mi
  16. 16Beaver County383/sq mi
  17. 17Luzerne County368/sq mi
  18. 18Westmoreland County343/sq mi
  19. 19Erie County337/sq mi
  20. 20Monroe County275/sq mi
  21. 21Butler County250/sq mi
  22. 22Washington County245/sq mi
  23. 23Lawrence County238/sq mi
  24. 24Blair County231/sq mi
  25. 25Adams County205/sq mi
  26. 26Franklin County204/sq mi
  27. 27Northumberland County198/sq mi
  28. 28Cambria County191/sq mi
  29. 29Schuylkill County184/sq mi
  30. 30Carbon County171/sq mi
  31. 31Mercer County163/sq mi
  32. 32Fayette County159/sq mi
  33. 33Centre County143/sq mi
  34. 34Montour County139/sq mi
  35. 35Columbia County135/sq mi
  36. 36Union County134/sq mi
  37. 37Snyder County121/sq mi
  38. 38Mifflin County112/sq mi
  39. 39Pike County111/sq mi
  40. 40Indiana County100/sq mi
  41. 41Armstrong County99/sq mi
  42. 42Lycoming County92/sq mi
  43. 43Perry County84/sq mi
  44. 44Crawford County82/sq mi
  45. 45Venango County74/sq mi
  46. 46Wayne County71/sq mi
  47. 47Clearfield County69/sq mi
  48. 48Somerset County68/sq mi
  49. 49Jefferson County67/sq mi
  50. 50Wyoming County65/sq mi
  51. 51Clarion County62/sq mi
  52. 52Greene County61/sq mi
  53. 53Juniata County60/sq mi
  54. 54Bradford County52/sq mi
  55. 55Huntingdon County50/sq mi
  56. 56Bedford County47/sq mi
  57. 57Susquehanna County46/sq mi
  58. 58Warren County43/sq mi
  59. 59Clinton County43/sq mi
  60. 60McKean County41/sq mi
  61. 61Elk County37/sq mi
  62. 62Tioga County36/sq mi
  63. 63Fulton County33/sq mi
  64. 64Forest County16/sq mi
  65. 65Potter County15/sq mi
  66. 66Sullivan County13/sq mi
  67. 67Cameron County11/sq mi

Questions about this map

Which zip code has the highest population density in Pennsylvania?

Among zip codes with at least 1,000 residents, 15282 (Pittsburgh, PA) has the highest: 43,075/sq mi.

Which zip code has the lowest population density in Pennsylvania?

16720 (Austin, PA) has the lowest: 5/sq mi.

What is the population density for the United States?

95/sq mi; in Pennsylvania it is 291/sq mi.

Where does this data come from?

U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024). Residents per square mile of land (water excluded). Under 50 is rural, a few hundred is small-town, 2,500+ is urban, and 10,000+ is big-city dense.

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