Counties in Iowa by traffic fatalities

Polk County had the highest traffic fatalities of 99 counties in 2014, at 19. Wayne County had the lowest, at 0. The median was 2 and the figure for Iowa was 322. Source: National Highway Traffic Safety Administration.

Highest19Polk County

Lowest0Wayne County

Median299 counties

Iowa322History

Top 40 counties, 2014

count. Source: NHTSA, Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2014 count	Change on 2013
1	Polk County	19	-26.9%
2	Pottawattamie County	16	+77.8%
3	Linn County	14	+16.7%
3	Woodbury County	14	0%
5	Scott County	13	+18.2%
6	Dubuque County	9	+125%
7	Johnson County	8	+14.3%
8	Benton County	6	-14.3%
8	Boone County	6	+100%
8	Buena Vista County	6	+200%
8	Carroll County	6	+200%
8	Cass County	6	+20%
8	Cerro Gordo County	6	+100%
8	Dallas County	6	-25%
8	Warren County	6	-14.3%
16	Adair County	5	+66.7%
16	Black Hawk County	5	-58.3%
16	Clay County	5	+150%
16	Fayette County	5	-16.7%
16	Jasper County	5	-28.6%
16	Louisa County	5	+66.7%
16	Marshall County	5	+66.7%
16	Poweshiek County	5	+25%
16	Story County	5	+66.7%
25	Clinton County	4	+100%
25	Jones County	4	+100%
25	Keokuk County	4	+300%
25	Washington County	4	+100%
25	Wright County	4	+33.3%
30	Allamakee County	3	-40%
30	Bremer County	3	+200%
30	Calhoun County	3	n/a
30	Decatur County	3	+200%
30	Floyd County	3	0%
30	Fremont County	3	+200%
30	Hancock County	3	-25%
30	Harrison County	3	-40%
30	Jackson County	3	0%
30	Kossuth County	3	0%
30	Lee County	3	+50%
30	Mills County	3	0%
30	Mitchell County	3	+50%
30	Osceola County	3	n/a
30	Palo Alto County	3	n/a
30	Sac County	3	+50%
30	Tama County	3	0%
47	Adams County	2	+100%
47	Appanoose County	2	-33.3%
47	Cedar County	2	-50%
47	Cherokee County	2	n/a
47	Chickasaw County	2	-33.3%
47	Clayton County	2	0%
47	Crawford County	2	n/a
47	Des Moines County	2	-50%
47	Dickinson County	2	0%
47	Greene County	2	-33.3%
47	Grundy County	2	-50%
47	Hamilton County	2	n/a
47	Hardin County	2	+100%
47	Henry County	2	-50%
47	Humboldt County	2	-50%
47	Madison County	2	0%
47	Mahaska County	2	-66.7%
47	Page County	2	-33.3%
47	Wapello County	2	+100%
47	Webster County	2	-66.7%
47	Winneshiek County	2	+100%
68	Audubon County	1	-66.7%
68	Buchanan County	1	0%
68	Butler County	1	-66.7%
68	Davis County	1	n/a
68	Delaware County	1	-66.7%
68	Emmet County	1	-50%
68	Guthrie County	1	-66.7%
68	Iowa County	1	-50%
68	Jefferson County	1	-50%
68	Lucas County	1	n/a
68	Lyon County	1	-75%
68	Marion County	1	-50%
68	Monona County	1	-80%
68	Monroe County	1	n/a
68	Muscatine County	1	-50%
68	Plymouth County	1	n/a
68	Pocahontas County	1	n/a
68	Shelby County	1	0%
68	Sioux County	1	-50%
68	Winnebago County	1	n/a
68	Worth County	1	n/a
89	Clarke County	0	-100%
89	Franklin County	0	-100%
89	Howard County	0	-100%
89	Ida County	0	n/a
89	Montgomery County	0	n/a
89	O'Brien County	0	-100%
89	Ringgold County	0	n/a
89	Taylor County	0	-100%
89	Union County	0	-100%
89	Van Buren County	0	n/a
89	Wayne County	0	-100%

Other periods

About this ranking

People killed in motor vehicle traffic crashes during the year. FARS counts people who die within 30 days of a crash involving a motor vehicle travelling on a public road, by the place of the crash, not of residence.

A police-based count of deaths. It differs from death certificate counts (CDC) and from the WHO road traffic death rate (road_traffic_death_rate), which is modelled for international comparison.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

National Highway Traffic Safety Administration (NHTSA), Fatality Analysis Reporting System. Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. https://static.nhtsa.gov/nhtsa/downloads/FARS/2014/National/FARS2014NationalCSV.zip. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

National Highway Traffic Safety Administration. (2026). Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash (Counties in Iowa by traffic fatalities, 2014) [Data set]. Retrieved October 12, 2026, from https://static.nhtsa.gov/nhtsa/downloads/FARS/2014/National/FARS2014NationalCSV.zip

MLA 9

Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash, Counties in Iowa by traffic fatalities, 2014. National Highway Traffic Safety Administration, 24 June 2026, https://static.nhtsa.gov/nhtsa/downloads/FARS/2014/National/FARS2014NationalCSV.zip. Invokely, https://invokely.ai/rankings/traffic-fatalities/iowa-counties?period=2014. Accessed 12 Oct. 2026.

Chicago (author-date)

National Highway Traffic Safety Administration. 2026. Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. Counties in Iowa by traffic fatalities, 2014. Dataset. Accessed October 12, 2026. https://static.nhtsa.gov/nhtsa/downloads/FARS/2014/National/FARS2014NationalCSV.zip. Also distributed by Invokely, https://invokely.ai/rankings/traffic-fatalities/iowa-counties?period=2014.

Harvard

National Highway Traffic Safety Administration (2026) Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash, Counties in Iowa by traffic fatalities, 2014 [Dataset]. Available at: https://static.nhtsa.gov/nhtsa/downloads/FARS/2014/National/FARS2014NationalCSV.zip, via Invokely: https://invokely.ai/rankings/traffic-fatalities/iowa-counties?period=2014 (Accessed: 12 October 2026).

BibTeX

@misc{national_counties_in_iowa_by_2014,
  author = {{National Highway Traffic Safety Administration}},
  title = {{Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash: Counties in Iowa by traffic fatalities, 2014}},
  year = {2026},
  howpublished = {Data set},
  url = {https://static.nhtsa.gov/nhtsa/downloads/FARS/2014/National/FARS2014NationalCSV.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/iowa-counties?period=2014. Publisher attribution: National Highway Traffic Safety Administration (NHTSA), Fatality Analysis Reporting System. Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. https://static.nhtsa.gov/nhtsa/downloads/FARS/2014/National/FARS2014NationalCSV.zip. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - National Highway Traffic Safety Administration
TI  - Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash: Counties in Iowa by traffic fatalities, 2014
PY  - 2026
DA  - 2026/06/24
PB  - National Highway Traffic Safety Administration
DB  - Invokely
UR  - https://static.nhtsa.gov/nhtsa/downloads/FARS/2014/National/FARS2014NationalCSV.zip
L2  - https://invokely.ai/rankings/traffic-fatalities/iowa-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/iowa-counties?period=2014.
N1  - Publisher attribution: National Highway Traffic Safety Administration (NHTSA), Fatality Analysis Reporting System. Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. https://static.nhtsa.gov/nhtsa/downloads/FARS/2014/National/FARS2014NationalCSV.zip. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest traffic fatalities?

Polk County, with 19 in 2014, according to National Highway Traffic Safety Administration.

Which county has the lowest traffic fatalities?

Wayne County, with 0 in 2014.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: National Highway Traffic Safety Administration, Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. Retrieved 2026-10-12.