Which Idaho cities have the most 5K races?
Boise (17), Coeur d'Alene (4), Idaho Falls (2), Eagle (2) lead the state for 5K races. Those give you the most dates to choose from if your schedule is tight.
Idaho · 5K
5K Races in Idaho
Every upcoming 5K in Idaho, all 43 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
43 upcoming 5K races · 14 with finish-time stats
By the numbers
The Biggest and Longest-Running
The Idaho races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
5K Races by City
Soonest 5K Races in Idaho
43 total Sat, Aug 1, 2026Farm Life 5k Trail Run Idaho Falls, IDFrom $15Details Sat, Aug 1, 2026Kuna Days 5K Run and Walk Kuna, IDFrom $20Details Sat, Aug 1, 2026Splash n Dash 5K Fun Run/Walk (3rd Annual) Burley, IDFrom $35Details Sat, Aug 8, 2026Caribou County Fair 5k Grace, IDFrom $30Details Sat, Aug 8, 2026Lyndsey Kunz Memorial Run Victor, IDFrom $25Register Sat, Aug 8, 2026Jogging for Josh Idaho Falls, IDFrom $20Register Sat, Aug 8, 2026Kick for Kicks Charity Fun Run Buhl, IDFrom $25Register Fri, Aug 14, 2026Wallace Huckleberry Festival and 5k Fun Run Wallace, IDFrom $60Details Sat, Aug 15, 2026Aaron Butler Memorial Purple Heart Run: Idaho Eagle, IDFrom $25Details Sat, Aug 22, 2026Foothills XC12K Boise, IDFrom $50Details Sun, Aug 23, 2026Popsicle 5K/10K/Half - Boise Boise, IDFrom $35Details Sat, Aug 29, 2026Great Futures 5K & 10K Nampa, IDFrom $25Details
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Common Questions About Running a 5K in Idaho
When are most 5K races held in Idaho?
August is the busiest month for 5K races in Idaho, with 12 of the 43, followed by October with 10. If you are flexible on the date, that is the quickest way to narrow things down.
How much do Idaho 5K races cost?
Entry fees for 5K races here run from $10 to about $60, depending on the event and how early you register.
How early should I register for a 5K in Idaho?
23 of the 43 5K races in Idaho already have a price increase scheduled, so entry gets more expensive the longer you leave it. Race pricing almost always steps up as the date approaches, and signing up early is usually the cheapest option.
Are Idaho 5K races beginner-friendly?
Yes, for the most part. Across the 14 5K races in Idaho with published results, the typical median finish is around 39:26, which means half of every one of those fields came in slower than that. Recreational runners and walk-runners are the bulk of these fields, not the exception.
Are there trail 5K races in Idaho?
Yes, 4 races around Idaho get you off the pavement: 3 are trail races, and 1 mixes road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.