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Edition: FARS 2024, annual fileNHTSA released it on Release dates

Iowa fatal crash statistics by county

This record uses FARS 2024. Read counts, rates and file versions before comparing periods.

Counties by year (CSV)Cite this page

FARS records 356 deaths in 324 fatal crashes in Iowa in 2024.

In 2024 the rate is 11.0 deaths for each 100,000 residents in Iowa and 11.5 in the United States.

In 2024 the rate is 1.05 deaths for each 100 million vehicle-miles in Iowa and 1.19 in the United States.

By deaths for each 100,000 residents in 2024, Iowa was number 30 of 51, the 50 states and the District of Columbia.

Deaths in Iowa fell by 6.1% from 2023 to 2024. In the United States they fell by 4.3%.

From 2015 to 2024, 71.5% of the fatal crashes in Iowa with a known setting were rural, against 42.7% in the United States.

To qualify as a FARS case, the crash had to involve a motor vehicle traveling on a trafficway customarily open to the public and must have resulted in the death of a motorist or a non-motorist within 30 days of the crash.

The set of first files, known as the Annual Report File (ARF), is released following the crash year. The ARF is replaced about a year later with a final file, which contains additional cases or updates to cases that had become available after the ARF was released.

NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on .

This page rests on the FARS 2024 annual file. NHTSA released it on . NHTSA can revise the counts in the final file. Release dates

Figure 1.Deaths in Iowa by year, 2015 to 2024

Table 2 has the numbers. Go to the table

Since the last update: no figure of this state has a change on record.

County map

Figure 2.Counties of Iowa by deaths for each 100,000 residents in a year, 2015 to 2024
Adair County: 41.3 deaths for each 100,000 residents in a yearAdams County: 16.5 deaths for each 100,000 residents in a yearAllamakee County: 17.2 deaths for each 100,000 residents in a yearAppanoose County: 13.8 deaths for each 100,000 residents in a yearAudubon County: 23.3 deaths for each 100,000 residents in a yearBenton County: 22.6 deaths for each 100,000 residents in a yearBlack Hawk County: 7.8 deaths for each 100,000 residents in a yearBoone County: 12.1 deaths for each 100,000 residents in a yearBremer County: 8.4 deaths for each 100,000 residents in a yearBuchanan County: 11.0 deaths for each 100,000 residents in a yearBuena Vista County: 9.8 deaths for each 100,000 residents in a yearButler County: 12.5 deaths for each 100,000 residents in a yearCalhoun County: 13.3 deaths for each 100,000 residents in a yearCarroll County: 11.3 deaths for each 100,000 residents in a yearCass County: 30.5 deaths for each 100,000 residents in a yearCedar County: 18.5 deaths for each 100,000 residents in a yearCerro Gordo County: 13.8 deaths for each 100,000 residents in a yearCherokee County: 13.1 deaths for each 100,000 residents in a yearChickasaw County: 15.1 deaths for each 100,000 residents in a yearClarke County: 26.3 deaths for each 100,000 residents in a yearClay County: 10.4 deaths for each 100,000 residents in a yearClayton County: 18.5 deaths for each 100,000 residents in a yearClinton County: 10.7 deaths for each 100,000 residents in a yearCrawford County: 15.0 deaths for each 100,000 residents in a yearDallas County: 6.2 deaths for each 100,000 residents in a yearDavis County: 18.8 deaths for each 100,000 residents in a yearDecatur County: 29.2 deaths for each 100,000 residents in a yearDelaware County: 12.7 deaths for each 100,000 residents in a yearDes Moines County: 7.4 deaths for each 100,000 residents in a yearDickinson County: 11.4 deaths for each 100,000 residents in a yearDubuque County: 6.7 deaths for each 100,000 residents in a yearEmmet County: 11.8 deaths for each 100,000 residents in a yearFayette County: 14.8 deaths for each 100,000 residents in a yearFloyd County: 18.6 deaths for each 100,000 residents in a yearFranklin County: 13.9 deaths for each 100,000 residents in a yearFremont County: 46.1 deaths for each 100,000 residents in a yearGreene County: 24.9 deaths for each 100,000 residents in a yearGrundy County: 13.0 deaths for each 100,000 residents in a yearGuthrie County: 10.3 deaths for each 100,000 residents in a yearHamilton County: 20.0 deaths for each 100,000 residents in a yearHancock County: 12.1 deaths for each 100,000 residents in a yearHardin County: 18.4 deaths for each 100,000 residents in a yearHarrison County: 21.6 deaths for each 100,000 residents in a yearHenry County: 17.5 deaths for each 100,000 residents in a yearHoward County: 8.6 deaths for each 100,000 residents in a yearHumboldt County: 22.0 deaths for each 100,000 residents in a yearIda County: 21.8 deaths for each 100,000 residents in a yearIowa County: 29.9 deaths for each 100,000 residents in a yearJackson County: 16.0 deaths for each 100,000 residents in a yearJasper County: 12.0 deaths for each 100,000 residents in a yearJefferson County: 8.3 deaths for each 100,000 residents in a yearJohnson County: 5.2 deaths for each 100,000 residents in a yearJones County: 15.9 deaths for each 100,000 residents in a yearKeokuk County: 13.9 deaths for each 100,000 residents in a yearKossuth County: 12.9 deaths for each 100,000 residents in a yearLee County: 19.1 deaths for each 100,000 residents in a yearLinn County: 6.8 deaths for each 100,000 residents in a yearLouisa County: 18.3 deaths for each 100,000 residents in a yearLucas County: 13.9 deaths for each 100,000 residents in a yearLyon County: 12.5 deaths for each 100,000 residents in a yearMadison County: 18.2 deaths for each 100,000 residents in a yearMahaska County: 13.5 deaths for each 100,000 residents in a yearMarion County: 11.1 deaths for each 100,000 residents in a yearMarshall County: 13.8 deaths for each 100,000 residents in a yearMills County: 21.6 deaths for each 100,000 residents in a yearMitchell County: 13.2 deaths for each 100,000 residents in a yearMonona County: 33.5 deaths for each 100,000 residents in a yearMonroe County: 19.6 deaths for each 100,000 residents in a yearMontgomery County: 13.8 deaths for each 100,000 residents in a yearMuscatine County: 11.2 deaths for each 100,000 residents in a yearO'Brien County: 14.3 deaths for each 100,000 residents in a yearOsceola County: 24.7 deaths for each 100,000 residents in a yearPage County: 10.5 deaths for each 100,000 residents in a yearPalo Alto County: 12.3 deaths for each 100,000 residents in a yearPlymouth County: 16.9 deaths for each 100,000 residents in a yearPocahontas County: 15.9 deaths for each 100,000 residents in a yearPolk County: 6.9 deaths for each 100,000 residents in a yearPottawattamie County: 12.6 deaths for each 100,000 residents in a yearPoweshiek County: 15.7 deaths for each 100,000 residents in a yearRinggold County: 29.1 deaths for each 100,000 residents in a yearSac County: 21.5 deaths for each 100,000 residents in a yearScott County: 9.5 deaths for each 100,000 residents in a yearShelby County: 16.3 deaths for each 100,000 residents in a yearSioux County: 10.4 deaths for each 100,000 residents in a yearStory County: 4.7 deaths for each 100,000 residents in a yearTama County: 14.7 deaths for each 100,000 residents in a yearTaylor County: 13.3 deaths for each 100,000 residents in a yearUnion County: 13.1 deaths for each 100,000 residents in a yearVan Buren County: 15.3 deaths for each 100,000 residents in a yearWapello County: 11.6 deaths for each 100,000 residents in a yearWarren County: 10.7 deaths for each 100,000 residents in a yearWashington County: 13.4 deaths for each 100,000 residents in a yearWayne County: 18.5 deaths for each 100,000 residents in a yearWebster County: 16.1 deaths for each 100,000 residents in a yearWinnebago County: 9.5 deaths for each 100,000 residents in a yearWinneshiek County: 15.0 deaths for each 100,000 residents in a yearWoodbury County: 8.8 deaths for each 100,000 residents in a yearWorth County: 24.3 deaths for each 100,000 residents in a yearWright County: 11.0 deaths for each 100,000 residents in a year

Deaths for each 100,000 residents in a year

  • Fewer than 1015 counties
  • 10 to 14.941 counties
  • 15 to 19.924 counties
  • 20 to 29.915 counties
  • 30 or more4 counties

The limits of the classes are the same for every state. A county with few residents can show a high rate from few deaths. A class is not a judgement of a county.

In words: 15 counties have a rate of fewer than 10; 41 counties have a rate of 10 to 14.9; 24 counties have a rate of 15 to 19.9; 15 counties have a rate of 20 to 29.9; 4 counties have a rate of 30 or more. Table 1 has the rate of each county.

Counties

Table 1.Iowa: deaths and rate of each county, in name order
CountyResidentsDeaths, 2024Deaths, 2015 to 2024For each 100,000 residents in a year
Adair County7,46503041.3
Adams County3,6000616.5
Allamakee County14,2061 or 22417.2
Appanoose County12,10201713.8
Audubon County5,5481 or 21323.3
Benton County25,84545822.6
Black Hawk County131,473151037.8
Boone County26,72733212.1
Bremer County25,3630218.4
Buchanan County20,7111 or 22311.0
Buena Vista County20,6553209.8
Butler County14,0931 or 21812.5
Calhoun County9,6541 or 21313.3
Carroll County20,44642311.3
Cass County13,0051 or 24030.5
Cedar County18,28843418.5
Cerro Gordo County42,34775913.8
Cherokee County11,52201513.1
Chickasaw County11,7241 or 21815.1
Clarke County9,5911 or 22526.3
Clay County16,5211 or 21710.4
Clayton County16,9831 or 23218.5
Clinton County45,99975010.7
Crawford County16,2891 or 22515.0
Dallas County114,8121 or 2606.2
Davis County9,1761 or 21718.8
Decatur County7,67532329.2
Delaware County17,6021 or 22212.7
Des Moines County38,1503297.4
Dickinson County18,0721 or 22011.4
Dubuque County99,03311666.7
Emmet County9,13101111.8
Fayette County19,11032914.8
Floyd County15,0811 or 22918.6
Franklin County9,9771 or 21413.9
Fremont County6,4931 or 23146.1
Greene County8,65442224.9
Grundy County12,37201613.0
Guthrie County10,6871 or 21110.3
Hamilton County14,99833020.0
Hancock County10,6201 or 21312.1
Hardin County16,46043118.4
Harrison County14,59403121.6
Henry County19,36833517.5
Howard County9,437088.6
Humboldt County9,50532122.0
Ida County6,7671 or 21521.8
Iowa County16,47464929.9
Jackson County19,35133116.0
Jasper County38,12244512.0
Jefferson County15,4051 or 2148.3
Johnson County158,8638805.2
Jones County21,17153315.9
Keokuk County9,8041 or 21413.9
Kossuth County14,46831912.9
Lee County32,48046419.1
Linn County230,389181546.8
Louisa County10,56402018.3
Lucas County8,8261 or 21213.9
Lyon County12,4041 or 21512.5
Madison County17,14933018.2
Mahaska County21,9121 or 23013.5
Marion County33,95543711.1
Marshall County40,12845513.8
Mills County14,74833221.6
Mitchell County10,5911 or 21413.2
Monona County8,4921 or 22933.5
Monroe County7,3941 or 21519.6
Montgomery County10,0531 or 21413.8
Muscatine County42,16194811.2
O'Brien County14,1881 or 22014.3
Osceola County6,00801524.7
Page County15,0131 or 21610.5
Palo Alto County8,8921 or 21112.3
Plymouth County25,68464316.9
Pocahontas County6,92201115.9
Polk County513,511473376.9
Pottawattamie County93,270911812.6
Poweshiek County18,42342915.7
Ringgold County4,6491 or 21429.1
Sac County9,61432121.5
Scott County174,840231649.5
Shelby County11,7781 or 21916.3
Sioux County36,77733710.4
Story County101,4184464.7
Tama County16,8041 or 22514.7
Taylor County5,8430813.3
Union County11,9241 or 21613.1
Van Buren County7,1871 or 21115.3
Wapello County35,42944111.6
Warren County56,49645610.7
Washington County22,60283013.4
Wayne County6,63431218.5
Webster County36,79945916.1
Winnebago County10,3513109.5
Winneshiek County19,6731 or 23015.0
Woodbury County106,74211928.8
Worth County7,30041824.3
Wright County12,8481 or 21411.0

Note: the rate is for the ten years 2015 to 2024. Residents: Census Bureau estimates, vintage 2025. A count of 1 or 2 is written "1 or 2", and no rate is given for it.

Download: the deaths and fatal crashes of each county by year, 1975 to 2024 (CSV)

Each year

Figure 3.Deaths in Iowa by year, 1975 to 2024

Tallest column: 779 (1976)2024: 356

The columns with a stronger shade are the years 2015 to 2024.

Table 2.Iowa: deaths, fatal crashes and rates by year, 1975 to 2024
YearDeathsFatal crashesFor each 100,000 residentsFor each 100 million vehicle-miles
202435632411.01.05
202337933011.81.14
202233630510.51.03
202135632911.11.08
202034331010.71.15
201933631310.61.00
201831929110.10.96
201733030110.50.99
201640235512.81.21
201532028210.20.96
201432228810.4n/a
201331729010.2n/a
201236533011.9n/a
201136032911.7n/a
201039034812.8n/a
200937133812.2n/a
200841236813.7n/a
200744639314.9n/a
200643938614.7n/a
200545039815.2n/a
200438835413.1n/a
200344338315.1n/a
200240537213.8n/a
200144638415.2n/a
200044539415.2n/a
1999490428n/an/a
1998449386n/an/a
1997468411n/an/a
1996465411n/an/a
1995527446n/an/a
1994478415n/an/a
1993459401n/an/a
1992437388n/an/a
1991488423n/an/a
1990465404n/an/a
1989514451n/an/a
1988557494n/an/a
1987491443n/an/a
1986441388n/an/a
1985474416n/an/a
1984420376n/an/a
1983514437n/an/a
1982480431n/an/a
1981613530n/an/a
1980626541n/an/a
1979655566n/an/a
1978638552n/an/a
1977628549n/an/a
1976779657n/an/a
1975670575n/an/a

Note: each year is a link to the page of that year. The rate for residents starts in 2000. The rate for vehicle-miles starts in 2015.

Two rates

One rate divides the deaths by the residents. The other rate divides the deaths by the miles that vehicles travel in the state.

Table 3.Iowa beside the United States: deaths for each 100,000 residents and for each 100 million vehicle-miles
RatePeriodIowaUnited States
For each 100,000 residents202411.011.5
For each 100,000 residents2015 to 2024, in a year11.011.8
For each 100 million vehicle-miles20241.051.19
For each 100 million vehicle-miles2015 to 20241.061.23

Residents: Census Bureau estimates, vintage 2025. Iowa had 3,230,454 residents in 2024.

Vehicle-miles: Federal Highway Administration, Highway Statistics, table VM-2. Iowa had 33,817 million vehicle-miles in 2024. Table VM-2 of 2024

Factors that NHTSA records

Table 4.Iowa: counts by recorded factor, 2015 to 2024
FactorCountCounted amongShareShare in the United States
A driver recorded as drinkingof 3,140 fatal crashes7983,140 fatal crashes26.3%
A speeding-related driverof 3,140 fatal crashes6333,140 fatal crashes27.2%
No restraint usedof 2,335 occupant deaths with restraint use known1,1222,335 occupant deathswith restraint use known49.0%
Pedestriansof 3,477 deaths2463,477 deaths17.1%
Bicyclistsof 3,477 deaths683,477 deaths2.4%
Motorcyclistsof 3,477 deaths5463,477 deaths14.5%
On a rural roadof 3,136 fatal crashes with the condition reported2,2423,136 fatal crasheswith the condition reported42.7%
In the darkof 3,118 fatal crashes with the condition reported1,2443,118 fatal crasheswith the condition reported49.2%

Note: FARS records a driver as drinking when police reported alcohol involvement or a test of the driver was positive for alcohol. It is not NHTSA's alcohol-impaired measure, which uses a blood alcohol concentration of .08 g/dL or higher. One crash can be in two or more rows. NHTSA's definitions

Note that alcohol data is often missing. For that reason, this data element may under-count the actual number of drinking drivers.

NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on .

Weekday, time and road class

Table 5.Iowa: fatal crashes by weekday and time of day, 2015 to 2024
WeekdayMidnight to 6 a.m.6 a.m. to noonNoon to 6 p.m.6 p.m. to midnightAll
Sunday13965147124475
Monday58116159118451
Tuesday3694157106393
Wednesday47106129118400
Thursday528715298389
Friday60116151163490
Saturday11792147182538
All days5096761,0429093,136

Note: a cell with a stronger shade has a larger count. The table has the fatal crashes with a known hour and weekday.

Table 6.Iowa: fatal crashes by road function class, 2015 to 2024
Road function classFatal crashesShareShare in the United States
Interstate34411.0%12.6%
Other freeways and expressways30.1%4.4%
Other principal arterial92029.3%29.8%
Minor arterial54717.4%22.1%
Major collector62820.0%15.5%
Minor collector1795.7%3.4%
Local51516.4%12.2%
Not reported4n/an/a

Note: the classes are those of the Federal Highway Administration. The shares are of the crashes with a reported class. Road function classes

Routes

24 signed routes in Iowa have a page. A route page needs 20 or more fatal crashes from 2015 to 2024.

All routes in Iowa

Interstate routes

Official channels

These links go to the sites of the agencies. They were checked on .

Cite this page

Fatal Roads. Iowa fatal crash statistics by county. https://fatalroads.com/state/iowa/. Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, FARS 2024 annual file. Data to .

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Source of the figures

Counts: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, national files of 1975 to 2024. The factors use the vehicle and person files from 2015. Residents: Census Bureau, Population Estimates Program, vintage 2025. Vehicle-miles: Federal Highway Administration, table VM-2. Map: Census Bureau cartographic boundary file, 2021 edition. Data to .

How the figures are made. Data sources and licences. Corrections. All states by year (CSV).

Questions

How many deaths did FARS record in Iowa in ten years?

FARS records 3,477 deaths in 3,140 fatal crashes in Iowa from 2015 to 2024. It records 3,872 deaths from 2005 to 2014.

What part of the deaths in the United States was in Iowa?

Iowa had 356 of the 39,254 deaths in the United States in 2024. That is 0.9 percent.

How many fatal crashes in Iowa had a driver recorded as drinking?

FARS records a driver as drinking in 798 of 3,140 fatal crashes from 2015 to 2024. It records a speeding-related driver in 633 of them.

How many pages does Iowa have?

Iowa has 99 county pages, 24 route pages and one page for each year from 1975 to 2024.