Iowa · Marathon

2026-2027 Marathons in Iowa

Every upcoming Marathon in Iowa, all 10 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.

10 upcoming marathons · 2 with finish-time stats

By the numbers

The Biggest and Longest-Running

The Iowa races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.

Iowa Marathons by City

The Next Marathons in Iowa

10 total

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 Oct 25, 2026.

Common Questions About Running a Marathon in Iowa

Which Iowa cities have the most marathons?

Des Moines (4), Bettendorf (2), Washington (1), Council Bluffs (1) lead the state for Marathon races. Those give you the most dates to choose from if your schedule is tight.

When are most marathons held in Iowa?

October is the busiest month for Marathon races in Iowa, with 3 of the 10, followed by April with 3. If you are flexible on the date, that is the quickest way to narrow things down.

Are there trail Marathon races in Iowa?

Yes, one race around Iowa gets you off the pavement: 1 mixes road and trail.