Why National Parks Matter
The United States is home to 63 national parks, spanning everything from arctic tundra in Alaska to tropical coastlines in Florida. These protected lands cover millions of acres and serve as vital refuges for wildlife, watersheds, and cultural heritage.
Established by an Act of Congress, national parks are managed by the National Park Service (NPS), founded in 1916. Their mission: to preserve the natural and cultural resources of these lands unimpaired for the enjoyment of future generations.
In 2021 alone, Americans made over 297 million recreation visits to national parks — a testament to how deeply these places are woven into American life and identity.
The Most-Visited Parks
Not all parks are equally visited. A small number of parks attract the vast majority of visitors, driven by accessibility, fame, and proximity to major population centers. Below are the top 6 most-visited parks in 2021:
| Park | State | 2021 Visitors |
|---|---|---|
| Zion | Utah | 5,039,835 |
| Yellowstone | Wyoming | 4,860,242 |
| Rocky Mountain | Colorado | 4,434,848 |
| Grand Canyon | Arizona | 4,532,677 |
| Grand Teton | Wyoming | 3,885,230 |
| Yosemite | California | 3,287,595 |
Zion surpassed Yellowstone to become the most-visited park in 2021, a remarkable shift that highlights the growing popularity of Utah's "Mighty Five."
Parks of Incredible Scale
National parks range wildly in size. Wrangell–St. Elias in Alaska is the largest at over 33,682 km² — bigger than the entire country of Switzerland. Meanwhile, Hot Springs in Arkansas covers just 24 km².
Left to right: Wrangell–St. Elias (AK), Yosemite (CA), Zion (UT)
This enormous size variation reflects how diverse the parks' purposes are — some protect vast wilderness ecosystems, others preserve small but historically significant cultural sites.
A History of Preservation
Yellowstone, established on March 1, 1872, became the world's first national park — a radical idea that nature itself deserved legal protection. President Ulysses S. Grant signed it into law.
Yellowstone's Old Faithful (est. 1872) — Grand Canyon (est. 1919)
The park system expanded rapidly in the 20th century. Today, the newest park is New River Gorge in West Virginia, designated on December 27, 2020, showing that the American conservation story is still being written.
The Least-Visited Parks
While millions flood Zion and Yellowstone, some parks see fewer visitors than a small town hosts in a weekend. These hidden gems offer solitude, raw wilderness, and an unfiltered connection with nature.
| Park | State | 2021 Visitors |
|---|---|---|
| Gates of the Arctic | Alaska | 11,025 |
| Kobuk Valley | Alaska | 11,540 |
| Lake Clark | Alaska | 18,278 |
| Katmai | Alaska | 24,764 |
| Isle Royale | Michigan | 25,844 |
America's 63 national parks are more than destinations — they are a living promise that the land will be kept wild, for us and for those who come after.