Home Least crowded national parks Lake Clark National Park is the least visited national park in this guide, with about 18,000 visits a year, followed by Isle Royale and North Cascades. Remote parks are quiet for a reason: check access before you plan.
Rank Park Visitors a year Busiest month Best months 1 Lake Clark National Park 18,000 Jul Jun and Jul 2 Isle Royale National Park 29,000 Aug May, Jun and Sep 3 North Cascades National Park 35,000 Jul May, Jun and Sep 4 Katmai National Park 35,000 Jul Jun, Jul and Aug 5 Dry Tortugas National Park 86,000 May Jan, Feb and Nov 6 Wrangell-St. Elias National Park 90,000 Jul May and Jun 7 Great Basin National Park 152,000 Jul Jun and Sep 8 Voyageurs National Park 209,000 Aug May, Jun and Sep 9 Guadalupe Mountains National Park 220,000 Mar Feb, Apr and Nov 10 Congaree National Park 260,000 May Feb, Oct and Nov 11 Channel Islands National Park 273,000 Jul May, Sep and Oct 12 Black Canyon of the Gunnison National Park 314,000 Jun May and Jun 13 Pinnacles National Park 346,000 Apr May 14 Kenai Fjords National Park 411,000 Jul Jun, Jul and Aug 15 Virgin Islands National Park 413,000 Mar Jan and Feb 16 Carlsbad Caverns National Park 422,000 Mar Jan, Feb and Nov 17 Lassen Volcanic National Park 427,000 Jul May, Sep and Oct 18 Great Sand Dunes National Park 461,000 Jun Jun and Oct 19 Petrified Forest National Park 465,000 Jun Mar, Apr and Nov 20 Mesa Verde National Park 483,000 Jun Apr and May 21 Denali National Park 503,000 Aug Jun, Jul and Aug 22 Biscayne National Park 523,000 Jul Jan, Feb and Dec 23 Big Bend National Park 546,000 Mar Jan, Feb and Nov 24 Wind Cave National Park 563,000 Jul Sep 25 Crater Lake National Park 566,000 Jul Jun, Aug and Sep 26 Mammoth Cave National Park 687,000 Jul Oct and Nov 27 White Sands National Park 697,000 Mar Jan, Feb and Nov 28 Kings Canyon National Park 707,000 Jul May, Sep and Oct 29 Glacier Bay National Park 727,000 Jul Jun and Jul 30 Theodore Roosevelt National Park 737,000 Jul Oct 31 Redwood National Park 745,000 Jun May, Sep and Oct 32 Everglades National Park 777,000 Mar Jan, Feb and Dec 33 Haleakala National Park 792,000 May Apr, Aug and Sep 34 Canyonlands National Park 805,000 May Mar 35 Saguaro National Park 935,000 Mar Mar and Nov 36 Badlands National Park 1,093,000 Jul Sep 37 Sequoia National Park 1,223,000 Jul May, Jun and Oct 38 Death Valley National Park 1,287,000 Apr Nov 39 Capitol Reef National Park 1,360,000 May Mar and Apr 40 Arches National Park 1,487,000 May Mar and Nov 41 Mount Rainier National Park 1,643,000 Jul Jul, Aug and Sep 42 Hawai'i Volcanoes National Park 1,644,000 Jan May, Aug and Sep 43 Shenandoah National Park 1,659,000 Oct Apr, Oct and Nov 44 New River Gorge National Park and Preserve 1,826,000 Jul Sep and Oct 45 Bryce Canyon National Park 2,309,000 Sep May and Jun 46 Gateway Arch National Park 2,398,000 Jul Mar, Oct and Nov 47 Hot Springs National Park 2,486,000 Jun Feb 48 Indiana Dunes National Park 2,700,000 Jun Apr 49 Cuyahoga Valley National Park 2,933,000 Jul Oct 50 Joshua Tree National Park 3,065,000 Mar Nov 51 Glacier National Park 3,093,000 Jul Aug and Sep 52 Olympic National Park 3,416,000 Aug Apr, May and Jun 53 Grand Teton National Park 3,615,000 Jul Jun, Aug and Sep 54 Acadia National Park 3,974,000 Aug Jun, Jul and Sep 55 Yosemite National Park 4,099,000 Jul May and Oct 56 Rocky Mountain National Park 4,147,000 Jul Jun 57 Yellowstone National Park 4,670,000 Jul Jul, Aug and Sep 58 Grand Canyon National Park 4,695,000 Jul Apr, May and Oct 59 Zion National Park 4,851,000 Jun Apr, Oct and Nov 60 Great Smoky Mountains National Park 12,339,000 Oct Sep, Oct and Nov
Source National Park Service recreation visits, average of 2023–2025. Gates of the Arctic, Kobuk Valley and the National Park of American Samoa are left out: no weather station with full monthly normals within 60 miles. Busiest national parks