Pennsylvania counties quiz

The 67 counties in the quiz

They’re the 67 counties of Pennsylvania, as counted by the US Census Bureau. The state capital, Harrisburg, is in Dauphin County.

How to play

In Point mode we name a county and you tap it on the map; in Type mode one lights up and you type its name (accents don’t matter); and in Time trial you get 6 seconds per question. If you miss, we show you where it was, which way it lies and a hint drawn from the data: its size rank and its neighbors.

Each game has 10, 20 or all the questions, and at the end you can practice just the ones you missed. Your best score for each mode is saved in this browser only: neither we nor anyone else can see it, and there’s no sign-up.

The hardest ones

The smallest counties are the hardest, since they barely show on the map: Montour (130 sq mi), Philadelphia (134 sq mi), and Delaware (184 sq mi). Zoom in with the buttons or two fingers to tap them.

And watch out for look-alike names: Bradford and Crawford.

Tips to learn them

• The 9 counties bordering Maryland trace that border on the map: Adams, Bedford, Chester, Fayette, Franklin, Fulton, Lancaster, Somerset, and York.
• Only 1 of the 67 counties have a Great Lakes shoreline: find them first along the edge of the map.
• Lycoming has the most neighbors: it borders 9 counties. Once you place it, you have a landmark for many more.
• Philadelphia is the most populous (1,574,281 people in 2025) and, together with Allegheny and Montgomery, is home to 28% of Pennsylvania’s people.

Playing in class

If you teach in Pennsylvania, start with your school’s county and its neighbors and add a few each day. Otherwise, it’s a good way to get to know the state before studying it.

With the Challenge your class link, everyone gets the same questions in the same order, with no accounts or passwords, and each student sees their own score, time and streak. To practice on paper, there’s a printable worksheet of the same map with an answer key.

List of all 67 counties

1. Adams pop. 107,594
2. Allegheny pop. 1,225,035
3. Armstrong pop. 63,698
4. Beaver pop. 166,032
5. Bedford pop. 47,480
6. Berks pop. 440,072
7. Blair pop. 119,541
8. Bradford pop. 59,600
9. Bucks pop. 647,828
10. Butler pop. 200,169
11. Cambria pop. 128,968
12. Cameron pop. 4,211
13. Carbon pop. 65,868
14. Centre pop. 157,393
15. Chester pop. 557,116
16. Clarion pop. 36,680
17. Clearfield pop. 78,100
18. Clinton pop. 37,870
19. Columbia pop. 66,193
20. Crawford pop. 81,792
21. Cumberland pop. 277,270
22. Dauphin pop. 293,351
23. Delaware pop. 580,937
24. Elk pop. 29,926
25. Erie pop. 265,832
26. Fayette pop. 123,021
27. Forest pop. 6,614
28. Franklin pop. 160,652
29. Fulton pop. 14,483
30. Greene pop. 33,885
31. Huntingdon pop. 43,001
32. Indiana pop. 82,878
33. Jefferson pop. 43,255
34. Juniata pop. 23,403
35. Lackawanna pop. 216,502
36. Lancaster pop. 563,159
37. Lawrence pop. 83,911
38. Lebanon pop. 146,380
39. Lehigh pop. 384,383
40. Luzerne pop. 332,126
41. Lycoming pop. 112,587
42. McKean pop. 38,984
43. Mercer pop. 107,860
44. Mifflin pop. 46,127
45. Monroe pop. 167,179
46. Montgomery pop. 877,643
47. Montour pop. 17,868
48. Northampton pop. 324,411
49. Northumberland pop. 89,920
50. Perry pop. 46,806
51. Philadelphia pop. 1,574,281
52. Pike pop. 62,808
53. Potter pop. 15,897
54. Schuylkill pop. 145,085
55. Snyder pop. 39,655
56. Somerset pop. 72,004
57. Sullivan pop. 5,856
58. Susquehanna pop. 38,237
59. Tioga pop. 40,502
60. Union pop. 42,313
61. Venango pop. 49,346
62. Warren pop. 37,038
63. Washington pop. 210,802
64. Wayne pop. 51,703
65. Westmoreland pop. 349,324
66. Wyoming pop. 25,790
67. York pop. 473,197