Number of visitors to Yellowstone National Park in the U.S. 2008-2022. Yellowstone National Park in the United States – the country's oldest national park - attracted a total of approximately 3.29 million visitors in 2022.

Yellowstone National Park is one of the most visited natural landmarks in the United States, consistently drawing millions of travelers from around the globe. In recent years, annual visitation has hovered between 3.8 million and 4.9 million people, with 2021 setting a record high of approximately 4.86 million visits. In 2026, tourism remains robust, driven by the park's iconic geothermal features like Old Faithful and the Grand Prismatic Spring. The vast majority of these visitors—roughly 75%—arrive during the peak summer months of June, July, and August, leading to significant congestion at major trailheads and geyser basins. During the shoulder seasons (May and September), the park sees a more manageable flow of about 300,000 to 500,000 visitors per month. Winter tourism is a specialized niche, with only about 100,000 people entering the park via snowcoach or snowmobile to witness the "steaming" winter landscapes. This high volume of foot traffic necessitates strict "Leave No Trace" policies and careful wildlife management to protect the park's famous bison and grizzly bear populations.