Counties with the most motor vehicle accident fatalities in Iowa

Written by:
January 4, 2023
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Counties with the most motor vehicle accident fatalities in Iowa

Media outlets were quick during the onset of the COVID-19 pandemic and the consequent lockdowns that defined the summer and fall of 2020 to note just how little traffic there was as a result. Simple logic would suggest that less traffic equals a lower likelihood of accidents and thus fewer injuries and fatalities. Sadly, this was not the case.

Nationwide, traffic fatalities rose 7.2% in 2020 to nearly 39,000. That number was the highest recorded since 2007. Qualifying this disturbing fact is a sticky wicket—common denominators behind traffic deaths such as impaired driving, failure to use a seat belt, and excessive speed were certainly contributing factors, but they alone do not account for a rise in deaths commensurate with a 430-million-mile drop in the number of miles people traveled across the course of the year. What can be qualified, however, is where fatal crashes took place.

Citing data from the Fatality Analysis Reporting System, compiled by the National Highway Traffic Safety Administration, Stacker identified the counties in Iowa that had the most fatalities from motor vehicle crashes in 2020. The number of accident fatalities are ranked by the number of deaths per 100,000 people, with the raw number functioning as a tiebreaker. The analysis only looked at counties with at least five deaths during 2020. Additional data is included on pedestrian, bicyclist, and drunk-driving-related deaths. In counties where at least five fatalities happened on the same street or interstate, the road with the most deaths is also included.

#19. Linn County, Iowa

- Motor vehicle crash fatalities: 5.3 per 100K people (#1,635 nationally, 12 deaths)
- 2 pedestrian deaths
- 0 bicyclist deaths
- 5 deaths involving drunk drivers
- No roads with at least five fatalities

#18. Black Hawk County, Iowa

- Motor vehicle crash fatalities: 6.8 per 100K people (#1,561 nationally, 9 deaths)
- 2 pedestrian deaths
- 2 bicyclist deaths
- 2 deaths involving drunk drivers
- No roads with at least five fatalities

#17. Polk County, Iowa

- Motor vehicle crash fatalities: 7.8 per 100K people (#1,507 nationally, 38 deaths)
- 6 pedestrian deaths
- 0 bicyclist deaths
- 11 deaths involving drunk drivers
- Road with most fatalities: I-80 (5 fatalities)

#16. Dallas County, Iowa

- Motor vehicle crash fatalities: 8.3 per 100K people (#1,481 nationally, 8 deaths)
- 1 pedestrian death
- 0 bicyclist deaths
- 2 deaths involving drunk drivers
- No roads with at least five fatalities

#15. Woodbury County, Iowa

- Motor vehicle crash fatalities: 9.5 per 100K people (#1,409 nationally, 10 deaths)
- 1 pedestrian death
- 0 bicyclist deaths
- 3 deaths involving drunk drivers
- No roads with at least five fatalities

#14. Scott County, Iowa

- Motor vehicle crash fatalities: 12.1 per 100K people (#1,234 nationally, 21 deaths)
- 3 pedestrian deaths
- 1 bicyclist death
- 4 deaths involving drunk drivers
- No roads with at least five fatalities

#13. Warren County, Iowa

- Motor vehicle crash fatalities: 13.5 per 100K people (#1,152 nationally, 7 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 1 death involving drunk drivers
- No roads with at least five fatalities

#12. Pottawattamie County, Iowa

- Motor vehicle crash fatalities: 13.9 per 100K people (#1,120 nationally, 13 deaths)
- 2 pedestrian deaths
- 0 bicyclist deaths
- 2 deaths involving drunk drivers
- No roads with at least five fatalities

#11. Marion County, Iowa

- Motor vehicle crash fatalities: 15.0 per 100K people (#1,048 nationally, 5 deaths)
- 0 pedestrian deaths
- 1 bicyclist death
- 3 deaths involving drunk drivers
- No roads with at least five fatalities

#10. Boone County, Iowa

- Motor vehicle crash fatalities: 18.7 per 100K people (#830 nationally, 5 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 1 death involving drunk drivers
- No roads with at least five fatalities

#9. Mahaska County, Iowa

- Motor vehicle crash fatalities: 22.6 per 100K people (#659 nationally, 5 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 0 deaths involving drunk drivers
- No roads with at least five fatalities

#8. Lee County, Iowa

- Motor vehicle crash fatalities: 23.7 per 100K people (#629 nationally, 8 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 6 deaths involving drunk drivers
- No roads with at least five fatalities

#7. Cedar County, Iowa

- Motor vehicle crash fatalities: 27.0 per 100K people (#507 nationally, 5 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 3 deaths involving drunk drivers
- No roads with at least five fatalities

#6. Mills County, Iowa

- Motor vehicle crash fatalities: 34.1 per 100K people (#336 nationally, 5 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 5 deaths involving drunk drivers
- No roads with at least five fatalities

#5. Plymouth County, Iowa

- Motor vehicle crash fatalities: 35.2 per 100K people (#307 nationally, 9 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 2 deaths involving drunk drivers
- No roads with at least five fatalities

#4. Hardin County, Iowa

- Motor vehicle crash fatalities: 35.3 per 100K people (#304 nationally, 6 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 3 deaths involving drunk drivers
- No roads with at least five fatalities

#3. Iowa County, Iowa

- Motor vehicle crash fatalities: 36.2 per 100K people (#280 nationally, 6 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 1 death involving drunk drivers
- No roads with at least five fatalities

#2. Madison County, Iowa

- Motor vehicle crash fatalities: 36.6 per 100K people (#273 nationally, 6 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 2 deaths involving drunk drivers
- No roads with at least five fatalities

#1. Adair County, Iowa

- Motor vehicle crash fatalities: 80.7 per 100K people (#40 nationally, 6 deaths)
- 0 pedestrian deaths
- 0 bicyclist deaths
- 0 deaths involving drunk drivers
- No roads with at least five fatalities

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