You can run the Idaho half-marathon events in Ashton, Boise, Coeur d'Alene, Hayden Lake, Idaho Falls, Ketchum, Lewiston, Moscow, Ogden, Pocatello, Priest Lake, Provo, Rexburg, Saint Charles, Salt Lake City, Sandpoint, and Twin Falls.
Idaho Half Marathons in May
This is the calendar of all the Idaho half marathons in May. On these race calendars, not only will you be able to search the basics of cities and dates, but you’ll also be able to find May Idaho half marathons by difficulty, scenery, race size, and attributes like whether it’s pet-friendly, stroller-friendly, or has a great finisher party.
If you can’t find the half marathon you’re looking for in Idaho in May, it’s possible the race has not updated their date to the current year or has switched months. If you know a race belongs on this calendar or have any edits you’d like to suggest for an existing race in Idaho in May, you can email us [email protected].
Filter Idaho Half Marathons
Race Size
Difficulty
Scenery
Type
Perfect For
Distances
Filter Idaho Half Marathons
Race Size
Difficulty
Scenery
Type
Perfect For
Distances
Featured Race
May 24, 2026
500-1000 runners
Coeur dAlene, Idaho
- 10K, 5k, Half Marathon, Marathon
May 2, 2026
100-500 runners
Boise, Idaho
- 10K, 5k, Half Marathon, Marathon, Road
May 16, 2026
1,000-10,000 runners
Ogden, Arizona
- 5k, Half Marathon, Marathon, Road
May 23, 2026
500-1000 runners
Stanley, Idaho
- 10K, 5k, Half Marathon
May 24, 2026
500-1000 runners
Coeur dAlene, Idaho
- 10K, 5k, Half Marathon, Marathon
Running in Idaho
FAQ
What are the most popular Idaho half marathons?
The Coeur d’Alene Half Marathon is one of Idaho’s most popular half marathons with just over 2,000 finishers.
What are the best Idaho half marathons for beginners in 2025?
We recommend the Coeur d’Alene Half Marathon, the Bear Lake Half Marathon, and the Mesa Falls Half Marathon.
We like the Coeur d’Alene for its crowds and flat, lakeside course.
We like the Bear Lake Half Marathon in St. Charles as the course actually crosses into three different states: Idaho, Wyoming, and Utah. An amazing race particularly if you’re trying to cross off racing in all 50 states.
The Mesa Falls Half Marathon in Ashton frequently comes up as one of the most scenic with a course along the Warm River.
Which Idaho cities have half marathons?
