National parks1
Visits in 2025 (all parks)4,762,988
No entrance fee0
OldestYellowstone (1872)
Idaho has 1 national park, counting Yellowstone, which it shares with other states.
The parks
| Park | Established | Area (acres) | Visits in 2025 | Entrance fee |
|---|---|---|---|---|
| Yellowstone | 1872 | 2,219,791 | 4,762,988 | $35 per vehicle |
Other National Park Service sites in Idaho (9)
Beyond its national park, Idaho has these Park Service sites:
- California National Historic Trail: no entrance fee
- City Of Rocks National Reserve: no entrance fee
- Craters Of The Moon National Monument & Preserve: $20 per vehicle
- Hagerman Fossil Beds National Monument: no entrance fee
- Ice Age Floods National Geologic Trail: no entrance fee
- Lewis & Clark National Historic Trail: no entrance fee
- Minidoka National Historic Site: no entrance fee
- Nez Perce National Historical Park: no entrance fee
- Oregon National Historic Trail: no entrance fee
Sources
- Wikipedia: List of national parks of the United States (area from NPS land resource data, 2025 recreation visits from NPS visitor statistics)
- National Park Service: Entrance Fees by Park
Sources last checked 1 November 2026.
Frequently asked questions
How many national parks are in Idaho?
1: Yellowstone.
What is the most visited national park in Idaho?
Yellowstone, with 4,762,988 recreation visits in 2025.