Idaho Falls Marathon

JUL
25
2026
Run the Idaho Falls Marathon, Half or 5K on a USATF certified course along the scenic Snake River Greenbelt, starting and finishing at Snake River Landing. Organized by a local nonprofit with aid stations, timing and a finish festival.
Sat 25 Jul 2026
26 miles 13 miles 5 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Event overview

The Idaho Falls Marathon & Half is an annual road race held in Idaho Falls, Idaho. The event is organized by a nonprofit foundation and is under new ownership and local race staff. The foundation is listed as a 501(c)(3) organization and the marathon course is USATF certified.

Courses and location

The event includes the following distances:

  • 26.2 mi Marathon
  • 13.1 mi Half Marathon
  • 5 km 5K

All races start and finish at Snake River Landing. The full marathon runs its first half west through southeast Idaho farm country and through historic New Sweden, then returns to the start point and continues clockwise around the Snake River Greenbelt for the second half. The half marathon follows the clockwise route around the Snake River Greenbelt that makes up the second half of the full marathon course. The 5K course is near Snake River Landing and is listed as course TBD. The listed location for the event is 955 Pier View Dr, Idaho Falls, ID 83402.

Race services

Organizer information notes aid stations, medical support, and runner packet items such as a bib number and timing chip. The event also mentions a post-race party and community-focused planning. Visit the organization's website for the most recent information.

26 mi
Marathon
13 mi
Half Marathon
5 km