Top 10 US National Parks - by number of visitors in 2017

Check 2016 rankings here

Check 2015 rankings here

Check 2014 rankings here

Check Current Year (Latest) rankings here

1.  Great Smoky Mountains NP  (11,338,893 visitors)

2.  Grand Canyon NP  (6,254,238 visitors)

3.  Zion NP  (4,504,812 visitors)

4.  Rocky Mountains NP  (4,437,215 visitors)

5.  Yosemite NP  (4,336,890 visitors)

6.  Yellowstone NP  (4,116,524 visitors)

7.  Acadia NP  (3,509,271 visitors)

8.  Olympic NP  (3,401,996 visitors)

9.  Grand Teton NP  (3,317,000 visitors)

10.  Glacier NP  (3,305,512 visitors)

and now all remaining National Parks in order of ranking:

11. Joshua Tree NP (2,853,619)

12. Bryce Canyon NP (2,571,684)

13. Cuyahoga Valley NP (2,226,879)

14. Hawaii Volcanoes NP (2,016,702)

15. Hot Springs NP (1,561,616)

16. Arches NP (1,539,028)

17. Shenandoah NP (1,458,874)

18. Mount Rainier NP (1,415,867)

19. Death Valley NP (1,294,827)

20. Sequoia NP (1,291,256)

21. Capitol Reef NP (1,150,165)

22. Haleakala NP (1,112,390)

23. Badlands NP (1,054,325)

24. Everglades NP (1,018,557)

25. Saguaro NP (964,760)

26. Canyonlands NP (742,271)

27. Crater Lake NP (711,749)

28. Theodore Roosevelt NP (708,003)

29. Kings Canyon NP (692,932)

30. Denali NP & PRES (642,809)

31. Petrified Forest NP (627,757)

32. Wind Cave NP (619,924)

33. Mesa Verde NP (613,788)

34. Mammoth Cave NP (587,853)

35. Glacier Bay NP & PRES (547,057)

36. Carlsbad Caverns NP (520,026)

37. Lassen Volcanic NP (507,256)

38. Great Sand Dunes NP & PRES (486,935)

39. Biscayne NP (446,961)

40. Redwood NP (445,000)

41. Big Bend NP (440,276)

42. Channel Islands NP (383,687)

43. Black Canyon of the Gunnison NP (307,143)

44. Virgin Islands NP (304,408)

45. Kenai Fjords NP (303,598)

46. Voyageurs NP (237,250)

47. Pinnacles NP (233,334)

48. Guadalupe Mountains NP (225,257)

49. Great Basin NP (168,028)

50. Congaree NP (159,595)

51. National Park of American Samoa (69,468)

52. Wrangell-St. Elias NP & PRES (68,292)

53. Dry Tortugas NP (54,281)

54. Katmai NP & PRES (37,818)

55. North Cascades NP (30,326)

56. Isle Royale NP (28,196)

57. Lake Clark NP & PRES (22,755)

58. Kobuk Valley NP (15,500)

59. Gates of the Arctic NP & PRES (11,177)