Bryce Canyon National Park in Utah attracted 2,461,269 visitors.
Hot Springs National Park in Arkansas saw 2,502,967 visitors.
Indiana Dunes National Park in Indiana brought 2,765,892 visitors.
Cuyahoga Valley National Park in Ohio attracted 2,860,059 visitors.
Glacier National Park in Montana had 2,933,616 visitors.
The Olympic National Park is located in the state of Washington and drew 2,947,503 visitors.
Joshua Tree National Park in California had 3,417,106 visitors.
Grand Teton National Park in Wyoming drew 3,417,106 visitors.
Maine’s Acadia National Park saw 3,879,890 visitors.
In California, Yosemite National Park drew 3,897,070 visitors.
Rocky Mountain National Park in Colorado attracted 4,115,837 visitors.
Yellowstone National Park which spans Idaho, Montana, Wyoming had 4,501,382 visitors.
Zion National Park in Utah saw 4,623,238 visitors.
Arizona’s Grand Canyon drew 4,733,705 visitors.
Great Smoky Mountains in North Carolina and Tennessee attracted 13,297,647 visitors.