The Largest National Parks in the United States

America's biggest national parks, by area.

The largest national parks are overwhelmingly in Alaska, where Wrangell–St. Elias alone exceeds the size of some states. Ranked here by protected area.

#	Place	Area (sq mi)
1	Denali National Park Six million acres of Alaskan wilderness around the high one	7,408 sq mi 19,186 km²
2	Death Valley National Park The hottest, driest, and lowest place in North America	5,326 sq mi 13,793 km²
3	Yellowstone National Park The world's first national park, atop a supervolcano	3,468 sq mi 8,983 km²
4	Everglades National Park A vast subtropical wetland — a "river of grass"	2,358 sq mi 6,107 km²
5	Grand Canyon National Park The park protecting Arizona's mile-deep gorge	1,902 sq mi 4,927 km²
6	Glacier National Park The "Crown of the Continent" in Montana	1,583 sq mi 4,100 km²
7	Olympic National Park Rainforest, mountains, and wild coast in Washington	1,442 sq mi 3,734 km²
8	Joshua Tree National Park Where two deserts meet in Southern California	1,242 sq mi 3,218 km²
9	Yosemite National Park Granite cliffs and waterfalls in the Sierra Nevada	1,170 sq mi 3,029 km²
10	Great Smoky Mountains National Park The most visited national park in the country	816 sq mi 2,114 km²
11	Sequoia National Park Home of the largest trees on Earth	631 sq mi 1,635 km²
12	Hawaii Volcanoes National Park Active volcanoes and new land on the Big Island	520 sq mi 1,348 km²

Place

Area (sq mi)

Denali National Park
Six million acres of Alaskan wilderness around the high one

7,408 sq mi
19,186 km²

Death Valley National Park
The hottest, driest, and lowest place in North America

5,326 sq mi
13,793 km²

Yellowstone National Park
The world's first national park, atop a supervolcano

3,468 sq mi
8,983 km²

Everglades National Park
A vast subtropical wetland — a "river of grass"

2,358 sq mi
6,107 km²

Grand Canyon National Park
The park protecting Arizona's mile-deep gorge

1,902 sq mi
4,927 km²

Glacier National Park
The "Crown of the Continent" in Montana

1,583 sq mi
4,100 km²

Olympic National Park
Rainforest, mountains, and wild coast in Washington

1,442 sq mi
3,734 km²

Joshua Tree National Park
Where two deserts meet in Southern California

1,242 sq mi
3,218 km²

Yosemite National Park
Granite cliffs and waterfalls in the Sierra Nevada

1,170 sq mi
3,029 km²

Great Smoky Mountains National Park
The most visited national park in the country

816 sq mi
2,114 km²

Sequoia National Park
Home of the largest trees on Earth

631 sq mi
1,635 km²

Hawaii Volcanoes National Park
Active volcanoes and new land on the Big Island

520 sq mi
1,348 km²

Figures are drawn from standard government and reference sources and shown in both imperial and metric units. See each entry for full details and citations. Browse all guides or open the explore map.