Hardest golf courses on record in Pennsylvania

The 50 hardest golf courses on record in Pennsylvania carry slope ratings from 155 at Ledgerock Golf Club in Mohnton to 138. They are ranked from the 250 Pennsylvania courses with a reliable published slope rating — 49% of the 507 listed here; the median slope across that group is 131. The rest carry no published slope rating, so a harder course may not appear on this list.

1. 1 Ledgerock Golf Club Mohnton Private 155 slope Par 72 · 76.0 rating · 7,241 yds
2. 2 Merion Golf Club East Haverford College Private 151 slope Par 70 · 75.1 rating · 6,946 yds
3. 3 Commonwealth National Golf Club Horsham Private 151 slope Par 71 · 74.7 rating · 7,076 yds
4. 4 Olde Stonewall Ellwood City Public 149 slope Par 70 · 74.3 rating · 7,103 yds
5. 5 White Manor Country Club Paoli Private 148 slope Par 71 · 74.6 rating · 7,055 yds
6. 6 Skytop Mountain Golf Club Port Matilda Public 147 slope Par 72 · 75.1 rating · 6,973 yds
7. 7 Whispering Woods Golf Club Erie Public 145 slope Par 72 · 74.0 rating · 6,804 yds
8. 8 Blue Bell Country Club Blue Bell Private 145 slope Par 71 · 73.6 rating · 6,887 yds
9. 9 Rolling Green Golf Club Drexel Hill Private 144 slope Par 70 · 74.8 rating · 6,913 yds
10. 10 Southpointe Golf Club Southpointe Private 144 slope Par 72 · 74.7 rating · 6,915 yds
11. 11 Talamore Country Club Ambler Private 144 slope Par 71 · 73.3 rating · 6,641 yds
12. 12 Union League Golf Club Andalusia 144 slope 73.0 rating · 6,633 yds
13. 13 Lookaway Golf Club Buckingham Private 143 slope Par 72 · 73.8 rating · 6,827 yds
14. 14 Llanerch Country Club Drexel Hill Private 143 slope Par 71 · 73.5 rating · 6,839 yds
15. 15 Union League Liberty Hill Lafayette Hill 142 slope 75.8 rating · 7,429 yds
16. 16 Valley Brook Country Club Lawrence 142 slope 75.0 rating · 6,993 yds
17. 17 Woodstone Golf Club Cherryville Public 142 slope Par 72 · 74.4 rating · 6,891 yds
18. 18 Hartefeld National Avondale Private 142 slope Par 72 · 74.2 rating · 6,886 yds
19. 19 Great Bear Golf Club East Stroudsburg Public 142 slope Par 71 · 73.3 rating · 6,802 yds
20. 20 Oakmont Country Club Oakmont Private 141 slope Par 71 · 76.4 rating · 7,255 yds
21. 21 Glenmaura National Golf Club Moosic Private 141 slope Par 71 · 73.7 rating · 6,961 yds
22. 22 Eagles Crossing Golf Club Plainfield Public 141 slope Par 72 · 71.7 rating · 6,475 yds
23. 23 Waynesborough Country Club Paoli Private 140 slope Par 71 · 74.7 rating · 7,063 yds
24. 24 Stonewall Old Course Elverson Private 140 slope Par 70 · 74.3 rating · 6,785 yds
25. 25 Whitemarsh Valley Country Club Flourtown Private 140 slope Par 72 · 74.0 rating · 6,846 yds
26. 26 Brookside Country Club Pottstown 140 slope 73.5 rating · 6,747 yds
27. 27 Latrobe Country Club Youngstown Private 140 slope Par 72 · 72.5 rating · 6,517 yds
28. 28 Totteridge Golf Course Greensburg Public 139 slope Par 72 · 75.8 rating · 7,154 yds
29. 29 Applecross Country Club Caln Private 139 slope Par 72 · 74.9 rating · 6,980 yds
30. 30 Out Door Country Club York Private 139 slope Par 72 · 73.8 rating · 6,895 yds
31. 31 Diamond Run Golf Club Sewickley Private 139 slope Par 72 · 73.6 rating · 6,805 yds
32. 32 Broad Run Golfer's Club Marshallton Public 139 slope Par 72 · 73.4 rating · 6,751 yds
33. 33 The Madison Club Madison Public 139 slope Par 72 · 73.4 rating · 6,847 yds
34. 34 Wildwood Golf Club Allison Park Private 139 slope Par 72 · 73.4 rating · 6,615 yds
35. 35 Whitford Country Club Exton Private 139 slope Par 72 · 73.3 rating · 6,692 yds
36. 36 Montour Heights Country Club Carnot-Moon Private 139 slope Par 72 · 73.1 rating · 6,629 yds
37. 37 Bent Creek Country Club Lititz 139 slope 73.0 rating · 6,660 yds
38. 38 Ebensburg Country Club Ebensburg Public 139 slope Par 71 · 72.7 rating · 6,513 yds
39. 39 Doylestown Country Club Doylestown Private 139 slope Par 72 · 72.0 rating · 6,554 yds
40. 40 Aronimink Golf Club Wayne Private 138 slope Par 70 · 75.5 rating · 7,267 yds
41. 41 Huntingdon Valley Country Club Huntingdon Valley 138 slope 74.9 rating · 7,004 yds
42. 42 Wissahickon Flourtown 138 slope 74.7 rating · 7,119 yds
43. 43 Jericho National Golf Club New Hope Private 138 slope Par 72 · 74.4 rating · 6,929 yds
44. 44 Pittsburgh Field Club Pittsburgh Private 138 slope Par 71 · 73.9 rating · 6,827 yds
45. 45 French Creek Golf Club Elverson Private 138 slope Par 71 · 73.2 rating · 6,725 yds
46. 46 Rivercrest Golf Club & Preserve Mont Clare Private 138 slope Par 71 · 73.1 rating · 6,646 yds
47. 47 West Shore Country Club Camp Hill Private 138 slope Par 72 · 72.9 rating · 6,728 yds
48. 48 Bellewood Country Club North Coventry Private 138 slope Par 71 · 72.6 rating · 6,625 yds
49. 49 Oak Tree Country Club Wheatland Public 138 slope Par 71 · 72.6 rating · 6,658 yds
50. 50 River Forest Country CLub Freeport Private 138 slope Par 71 · 70.2 rating · 6,212 yds