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Interstate 80
Fatal crashes 2015–2024 165Deaths 188Counties 12Latest data year 2024
FARS data are based on police crash reports and other sources; the drunk-driving measure is based on the highest BAC of any driver in the crash. Latest data year: 2024. The route is the trafficway recorded for each crash (FARS TWAY_ID); the same route number in another state has its own page.
Interstate 80 in Iowa was the trafficway in 165 fatal crashes between 2015 and 2024, in which 188 people died.
That is 5.3% of the 3,140 fatal crashes in Iowa over the same years. The ten-year crash count was about level between 2005–2014 (167) and 2015–2024 (165).
The crashes were concentrated in Pottawattamie County (24), Polk County (19) and Scott County (19) and 9 other counties.
17.0% of the crashes had a driver reported as drinking (Iowa: 25.4%) and 24.2% had a speeding-related driver (20.2%); pedestrians were 10.6% and motorcyclists 8.0% of those killed.
Fatal crashes per year
Route identification in FARS is consistent from 2000; earlier years are not shown. Shaded band: the ten-year window used for the shares below.
Compared with all fatal crashes in Iowa
| Measure | Interstate 80 | Iowa |
|---|---|---|
| Fatal crashes, 2015–2024 | 165 | 3,140 |
| Deaths, 2015–2024 | 188 | 3,477 |
| Deaths per fatal crash | 1.1 | 1.1 |
| Share of state fatal crashes | 5.3% | 100% |
| Change vs previous ten years | -1% | -9% |
Factor shares
Counties along the route
| # | County | Fatal crashes on I-80 | Share of route | County total, all roads |
|---|---|---|---|---|
| 1 | Pottawattamie County | 24 | 15% | 115 |
| 2 | Polk County | 19 | 12% | 309 |
| 3 | Scott County | 19 | 12% | 146 |
| 4 | Johnson County | 18 | 11% | 73 |
| 5 | Cass County | 15 | 9% | 32 |
| 6 | Cedar County | 15 | 9% | 31 |
| 7 | Dallas County | 14 | 8% | 53 |
| 8 | Adair County | 11 | 7% | 27 |
| 9 | Iowa County | 11 | 7% | 43 |
| 10 | Jasper County | 10 | 6% | 41 |
| 11 | Poweshiek County | 7 | 4% | 25 |
| 12 | Madison County | 2 | 1% | 30 |
Hour of day
Share of fatal crashes on Interstate 80 beginning in each hour, 2015–2024; tick marks the Iowa share for all roads.
Where along the route
| Mile marker range | Fatal crashes | Share |
|---|---|---|
| Mile 15–20 | 32 | 19% |
| Mile 5–10 | 21 | 13% |
| Mile 0–5 | 20 | 12% |
| Mile 10–15 | 19 | 12% |
| Mile 20–25 | 19 | 12% |
| Mile 25–30 | 5 | 3% |
Five-mile bins by FARS milepoint, the six with the most fatal crashes; 95.8% of crashes on the route have a milepoint. Milepoints are as recorded by the state and can restart at county or district lines.
Other routes in Iowa
- US Route 30 75
- Interstate 35 66
- US Route 61 63
- US Route 34 60
- US Route 6 56
- US Route 20 55
- US Route 218 49
- US Route 65 48
- US Route 69 48
- Interstate 29 43
- US Route 18 41
- US Route 151 39
All routes and counties in Iowa
Questions and answers
How many fatal crashes have there been on Interstate 80 in Iowa?
165 fatal crashes with 188 deaths over 2015–2024, per NHTSA's FARS. The route is the trafficway recorded for the crash; the same numbered route in another state has its own page.
Which counties along Interstate 80 had the most fatal crashes?
Pottawattamie County (24), Polk County (19), Scott County (19), Johnson County (18) and Cass County (15).
What share of crashes on Interstate 80 involved alcohol or speeding?
17.0% had a driver reported as drinking and 24.2% a speeding-related driver, against 25.4% and 20.2% for all fatal crashes in Iowa.
When do fatal crashes happen on Interstate 80?
46.7% of the crashes were between 6pm and 6am. The hour chart on this page shows the full distribution.
Provenance
Source: NHTSA Fatality Analysis Reporting System, annual national CSV files 2000–2024 (accident, vehicle and person tables), public domain. Route pages are built for signed Interstate, US and state routes with at least 20 fatal crashes in 2015–2024. Data through 31 Dec 2024; generated 30 Sep 2026. See methodology and corrections.