The 100 Deadliest Days of Summer in Idaho counts the days between Memorial Day and Labor Day, and officially ended last week.

During that timeframe, the Idaho State Police shared news release reports for 52 fatal accidents that claimed the lives of 57 people. There were more fatal and injury accidents across the state that weren’t shared on the ISP news release page.

Photo Credit Google Maps
Photo Credit Google Maps

Eight People Were Killed in Semi-Truck-Related Accidents Over the 100 Deadliest Days in Idaho

Of the fatal accidents that were reported in Idaho State Police news releases, 7 of them involved semi-trucks. In those accidents, 8 people were killed. There were more accidents that didn't result in fatalities that aren't included in this list.

Where They Happened in 2026: 7 Deadly Semi-Truck Accidents in Idaho Over the 100 Deadliest Days

These 7 fatal accidents happened in Idaho during the 100 Deadliest Days of Summer in 2026.

Gallery Credit: Credit N8 Bird

Here are links to each of the fatal semi-truck accident reports on the ISP website.

  1. Caldwell - 1 Dead - May 25 car vs semi
  2. Hope - 1 Dead - June 9 SUV vs semi
  3. Idaho Falls - 1 Dead - July 21 pedestrian vs semi
  4. Rogerson - 2 Dead - July 23 semi vs semi
  5. Rathdrum - 1 Dead - July 24 semi
  6. Gooding - 1 Dead - August 20 van vs semi
  7. Custer County - 1 Dead - August 27 semi

While any number of fatalities is a tragedy, the number is on track to be lower than two years ago. In 2024, we received 24 fatal accidents involving semi-trucks.

Where the 24 Fatal Semi Truck Accidents in 2024 Happened in Idaho

Idaho had an extremely deadly year in 2024 on its highways. There were nearly 2 dozen fatal motorcycle crashes, many deadly car accidents, and the Idaho State Police reported 24 semi-truck accidents that resulted in dozens of fatalities.

Gallery Credit: Credit N8

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