Park Name State Year Established Annual Visitors (2021) 1. Great Smoky Mountains Tennessee 1934 14,161,548 2. Zion Utah 1919 5,039,835 3. Yellowstone Wyoming 1872 4,860,242 4. Grand Canyon Arizona 1919 4,532,677 5. Rocky Mountain Colorado 1915 4,434,848 6. Acadia Maine 1919 4,069,098 7. Grand Teton Wyoming 1929 3,885,230 8. Yosemite California 1890 3,287,595 9. Indiana Dunes Indiana 2019 3,177,210 10. Glacier Montana 1910 3,081,656 11. Joshua Tree California 1994 3,064,400 12. Olympic Washington 1938 2,718,925 13. Cuyahoga Valley Ohio 1974 2,575,275 14. Hot Springs Arkansas 1921 2,162,884 15. Bryce Canyon Utah 1928 2,104,600 16 Arches Utah 1929 1,806,865 17. New River Gorge West Virginia 2020 1,682,720 18. Mount Rainier Washington 1899 1,670,063 19. Shenandoah Virginia 1935 1,592,312 20. Capitol Reef Utah 1971 1,405,353 21. Hawai'i Volcanoes Hawaii 1916 1,262,747 22. Badlands South Dakota 1978 1,224,226 23. Death Valley California 1994 1,146,551 24. Gateway Arch Missouri 2018 1,145,081 25. Saguaro Arizona 1994 1,079,786 26. Sequoia California 1890 1,059,548 27. Everglades Florida 1947 942,130 28. Canyonlands Utah 1964 911,594 29. Haleakala Hawaii 1961 853,181 30. Theodore Roosevelt North Dakota 1978 796,085 31. White Sands New Mexico 2019 782,469 32. Wind Cave South Dakota 1903 709,001 33. Biscayne Florida 1980 705,655 34. Crater Lake Oregon 1902 647,751 35. Great Sand Dunes Colorado 1932 602,613 36. Petrified Forest Arizona 1962 590,334 37. Big Bend Texas 1944 581,220 38. Kings Canyon California 1940 562,918 39. Mesa Verde Colorado 1906 548,477 40. Mammoth Cave Kentucky 1941 515,774 41. Redwood California 1968 435,879 42. Kenai Fjords Alaska 1980 411,782 43. Lassen Volcanic California 1916 359,635 44. Carlsbad Caverns New Mexico 1930 349,244 45. Pinnacles California 2013 348,857 46. Virgin Islands US Virgin Islands 1956 323,999 47. Channel Islands California 1980 319,252 48. Black Canyon of the Gunnison Colorado 1999 308,910 49. Guadalupe Mountains Texas 1972 243,291 50. Voyageurs Minnesota 1975 243,042 51. Denali Alaska 1917 229,521 52. Congaree South Carolina 2003 215,181 53. Great Basin Nevada 1986 215,181 54. Glacier Bay Alaska 1980 89,768 55. Dry Tortugas Florida 1935 83,817 56. Wrangell-St. Elias Alaska 1980 50,189 57. Isle Royale Michigan 1940 25,844 58. Katmai Alaska 1918 24,764 59. Lake Clark Alaska 1980 18,278 60. North Cascades Washington 1968 17,855 61. Kobuk Valley Alaska 1980 11,540 62. American Samoa American Samoa 1988 8,495 63. Gates of the Arctic Alaska 1980 7,362