Home / Seattle / Marathons / Snohomish County
Marathons in Snohomish County (2026-27)
Updated
No marathons are listed in Snohomish County in the next 90 days; the next is The Snohomish River Run Marathon, Half Marathon, 10K and 5K on Sunday, October 17 in Snohomish. 1 marathon is listed in Snohomish County for the next 12 months; the next one starts from $45.
All SeattleSeattle (city) (2)Eastside & South King (4)Snohomish County (1)Tacoma & South Sound (1)
By date
-
The Snohomish River Run Marathon, Half Marathon, 10K and 5K
Sun Oct 17 · 7:30 AM · Snohomish · Snohomish County
5K10KHalf marathonMarathon
from $45Goes up Sep 7
Quick answers
How many marathons are in Snohomish County in the next 3 months?
None are listed between October 17 and January 15. The next one after that is The Snohomish River Run Marathon, Half Marathon, 10K and 5K on Sunday, October 17 in Snohomish.
When does the next early-bird price end for marathons in Snohomish County?
The Snohomish River Run Marathon, Half Marathon, 10K and 5K: the 5K goes from $45 to $55 after September 7.
Are there marathons in Snohomish County this weekend?
None are listed for October 17 to October 18. The next is The Snohomish River Run Marathon, Half Marathon, 10K and 5K on Sunday, October 17 in Snohomish.