Home Busiest national parks Great Smoky Mountains National Park is the busiest national park, with about 12,339,000 recreation visits a year (2023–2025 average), followed by Zion and Grand Canyon.
Rank Park Visitors a year Busiest month Best months 1 Great Smoky Mountains National Park 12,339,000 Oct Sep, Oct and Nov 2 Zion National Park 4,851,000 Jun Apr, Oct and Nov 3 Grand Canyon National Park 4,695,000 Jul Apr, May and Oct 4 Yellowstone National Park 4,670,000 Jul Jul, Aug and Sep 5 Rocky Mountain National Park 4,147,000 Jul Jun 6 Yosemite National Park 4,099,000 Jul May and Oct 7 Acadia National Park 3,974,000 Aug Jun, Jul and Sep 8 Grand Teton National Park 3,615,000 Jul Jun, Aug and Sep 9 Olympic National Park 3,416,000 Aug Apr, May and Jun 10 Glacier National Park 3,093,000 Jul Aug and Sep 11 Joshua Tree National Park 3,065,000 Mar Nov 12 Cuyahoga Valley National Park 2,933,000 Jul Oct 13 Indiana Dunes National Park 2,700,000 Jun Apr 14 Hot Springs National Park 2,486,000 Jun Feb 15 Gateway Arch National Park 2,398,000 Jul Mar, Oct and Nov 16 Bryce Canyon National Park 2,309,000 Sep May and Jun 17 New River Gorge National Park and Preserve 1,826,000 Jul Sep and Oct 18 Shenandoah National Park 1,659,000 Oct Apr, Oct and Nov 19 Hawai'i Volcanoes National Park 1,644,000 Jan May, Aug and Sep 20 Mount Rainier National Park 1,643,000 Jul Jul, Aug and Sep 21 Arches National Park 1,487,000 May Mar and Nov 22 Capitol Reef National Park 1,360,000 May Mar and Apr 23 Death Valley National Park 1,287,000 Apr Nov 24 Sequoia National Park 1,223,000 Jul May, Jun and Oct 25 Badlands National Park 1,093,000 Jul Sep 26 Saguaro National Park 935,000 Mar Mar and Nov 27 Canyonlands National Park 805,000 May Mar 28 Haleakala National Park 792,000 May Apr, Aug and Sep 29 Everglades National Park 777,000 Mar Jan, Feb and Dec 30 Redwood National Park 745,000 Jun May, Sep and Oct 31 Theodore Roosevelt National Park 737,000 Jul Oct 32 Glacier Bay National Park 727,000 Jul Jun and Jul 33 Kings Canyon National Park 707,000 Jul May, Sep and Oct 34 White Sands National Park 697,000 Mar Jan, Feb and Nov 35 Mammoth Cave National Park 687,000 Jul Oct and Nov 36 Crater Lake National Park 566,000 Jul Jun, Aug and Sep 37 Wind Cave National Park 563,000 Jul Sep 38 Big Bend National Park 546,000 Mar Jan, Feb and Nov 39 Biscayne National Park 523,000 Jul Jan, Feb and Dec 40 Denali National Park 503,000 Aug Jun, Jul and Aug 41 Mesa Verde National Park 483,000 Jun Apr and May 42 Petrified Forest National Park 465,000 Jun Mar, Apr and Nov 43 Great Sand Dunes National Park 461,000 Jun Jun and Oct 44 Lassen Volcanic National Park 427,000 Jul May, Sep and Oct 45 Carlsbad Caverns National Park 422,000 Mar Jan, Feb and Nov 46 Virgin Islands National Park 413,000 Mar Jan and Feb 47 Kenai Fjords National Park 411,000 Jul Jun, Jul and Aug 48 Pinnacles National Park 346,000 Apr May 49 Black Canyon of the Gunnison National Park 314,000 Jun May and Jun 50 Channel Islands National Park 273,000 Jul May, Sep and Oct 51 Congaree National Park 260,000 May Feb, Oct and Nov 52 Guadalupe Mountains National Park 220,000 Mar Feb, Apr and Nov 53 Voyageurs National Park 209,000 Aug May, Jun and Sep 54 Great Basin National Park 152,000 Jul Jun and Sep 55 Wrangell-St. Elias National Park 90,000 Jul May and Jun 56 Dry Tortugas National Park 86,000 May Jan, Feb and Nov 57 Katmai National Park 35,000 Jul Jun, Jul and Aug 58 North Cascades National Park 35,000 Jul May, Jun and Sep 59 Isle Royale National Park 29,000 Aug May, Jun and Sep 60 Lake Clark National Park 18,000 Jul Jun and Jul
Source National Park Service recreation visits, average of 2023–2025. Least crowded national parks