| State / Territory | Date Established | Area (Acres) | Answer | % Correct |
|---|---|---|---|---|
| Florida | May 30, 1934 | 1,508,938.57 | Everglades National Park | 90%
|
| Wyoming / Montana / Idaho | March 1, 1872 | 2,219,790.71 | Yellowstone National Park | 87%
|
| Utah | November 19, 1919 | 147,242.66 | Zion National Park | 85%
|
| Arizona | February 26, 1919 | 1,201,647.03 | Grand Canyon National Park | 79%
|
| Maine | February 26, 1919 | 49,071,40 | Acadia National Park | 77%
|
| Utah | November 12, 1971 | 76,678.90 | Arches National Park | 74%
|
| California | October 1, 1890 | 761,747.50 | Yosemite National Park | 74%
|
| North Carolina / Tennessee | June 15, 1934 | 522,426.88 | Great Smoky Mountains National Park | 72%
|
| Alaska | February 26, 1917 | 4,740,911.16 | Denali National Park and Preserve | 69%
|
| Colorado | January 26, 1915 | 265,847.74 | Rocky Mountain National Park | 69%
|
| South Dakota | November 10, 1978 | 242,755.94 | Badlands National Park | 67%
|
| California / Nevada | October 31, 1994 | 3,408,395.63 | Death Valley National Park | 67%
|
| Montana | May 11, 1910 | 1,013,126.39 | Glacier National Park | 67%
|
| Texas | June 12, 1944 | 801,163.21 | Big Bend National Park | 64%
|
| Wyoming | February 26, 1929 | 310,044.36 | Grand Teton National Park | 64%
|
| California | October 31, 1994 | 795,155.85 | Joshua Tree National Park | 64%
|
| California | October 2, 1968 | 138,999.37 | Redwood National and State Parks | 64%
|
| California | September 25, 1890 | 404,062.63 | Sequoia National Park | 64%
|
| Washington | June 29, 1938 | 922,649.41 | Olympic National Park | 59%
|
| Utah | February 25, 1928 | 35,835.08 | Bryce Canyon National Park | 56%
|
| Florida | October 26, 1992 | 64,701.22 | Dry Tortugas National Park | 56%
|
| Oregon | May 22, 1902 | 183,224.05 | Crater Lake National Park | 54%
|
| Missouri | February 22, 2018 | 192.83 | Gateway Arch National Park | 54%
|
| Kentucky | July 1, 1941 | 72,472.87 | Mammoth Cave National Park | 54%
|
| American Samoa | October 31, 1988 | 8,257.67 | National Park of American Samoa | 54%
|
| Virginia | December 26, 1935 | 200,445.92 | Shenandoah National Park | 54%
|
| Utah | September 12, 1964 | 337,597.83 | Canyonlands National Park | 51%
|
| North Dakota | November 10, 1978 | 70,446.89 | Theodore Roosevelt National Park | 51%
|
| Arkansas | March 4, 1921 | 5,554.15 | Hot Springs National Park | 49%
|
| Washington | March 2, 1899 | 236,381.64 | Mount Rainier National Park | 49%
|
| Colorado | October 21, 1999 | 30,779.83 | Black Canyon of the Gunnison National Park | 46%
|
| New Mexico | May 14, 1930 | 46,766.45 | Carlsbad Caverns National Park | 46%
|
| Hawaii | August 1, 1916 | 344,812.18 | Hawai'i Volcanoes National Park | 46%
|
| Michigan | April 3, 1940 | 571,790.30 | Isle Royale National Park | 46%
|
| Colorado | June 29, 1906 | 52,485.17 | Mesa Verde National Park | 44%
|
| Arizona | December 9, 1962 | 221,390.21 | Petrified Forest National Park | 44%
|
| New Mexico | December 20, 2019 | 146,344.31 | White Sands National Park | 44%
|
| Utah | December 18, 1971 | 241,904.50 | Capitol Reef National Park | 41%
|
| California | March 5, 1980 | 249,561.00 | Channel Islands National Park | 41%
|
| Ohio | October 11, 2000 | 32,571.89 | Cuyahoga Valley National Park | 41%
|
| Nevada | October 27, 1986 | 77,180.00 | Great Basin National Park | 41%
|
| Arizona | October 14, 1994 | 92,876.75 | Saguaro National Park | 41%
|
| Washington | October 2, 1968 | 504,780.94 | North Cascades National Park | 38%
|
| Indiana | February 15, 2019 | 15,349.08 | Indiana Dunes National Park | 36%
|
| U.S. Virgin Islands | August 2, 1956 | 15,052.33 | Virgin Islands National Park | 36%
|
| Florida | June 28, 1980 | 172,971.11 | Biscayne National Park | 33%
|
| Colorado | September 24, 2004 | 107,345.73 | Great Sand Dunes National Park and Preserve | 33%
|
| Alaska | December 2, 1980 | 669,650.05 | Kenai Fjords National Park | 33%
|
| California | January 10, 2013 | 26,685.73 | Pinnacles National Park | 33%
|
| Alaska | December 2, 1980 | 7,523,897.45 | Gates of the Arctic National Park and Preserve | 31%
|
| Alaska | December 2, 1980 | 3,674,529.33 | Katmai National Park and Preserve | 31%
|
| California | August 9, 1916 | 106,589.02 | Lassen Volcanic National Park | 31%
|
| South Carolina | November 10, 2003 | 26,692.60 | Congaree National Park | 28%
|
| California | March 4, 1940 | 461,901.20 | Kings Canyon National Park | 28%
|
| West Virginia | December 27, 2020 | 7,021 | New River Gorge National Park and Preserve | 28%
|
| Minnesota | April 8, 1975 | 218,222.35 | Voyageurs National Park | 28%
|
| South Dakota | January 9, 1903 | 33,970.84 | Wind Cave National Park | 28%
|
| Alaska | December 2, 1980 | 3,223,383.43 | Glacier Bay National Park and Preserve | 26%
|
| Texas | September 30, 1972 | 86,367.10 | Guadalupe Mountains National Park | 26%
|
| Alaska | December 2, 1980 | 8,323,146.48 | Wrangell-St. Elias National Park and Preserve | 23%
|
| Hawaii | July 1, 1961 | 33,488.98 | Haleakalā National Park | 21%
|
| Alaska | December 2, 1980 | 2,619,816.49 | Lake Clark National Park and Preserve | 21%
|
| Alaska | December 2, 1980 | 1,750,716.16 | Kobuk Valley National Park | 18%
|