Fatal Roads

States › Iowa › 2022

2022

Iowa · year

Iowa in 2022

Deaths 336Fatal crashes 305Per 100,000 10.5US deaths 42,721

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. Final FARS file for 2022.

In 2022, 336 people died in 305 fatal crashes in Iowa, 10.5 deaths per 100,000 residents against 12.8 nationally.

The death toll fell 6% from 356 in 2021 to 336 in 2022.

Iowa accounted for 0.8% of the 42,721 crash deaths recorded nationally that year.

24.6% of the state's fatal crashes that year had at least one driver reported as drinking.

By FHWA road function class, the largest share was on other principal arterial roads (29%).

32% of the crashes happened between 6pm to midnight; Saturday was the most common day.

← 202120222023 →All years

Compared with 2021 and the nation

MeasureIowa 2022Iowa 2021United States 2022
Deaths33635642,721
Fatal crashes30532939,422
Deaths per 100,000 residents10.511.112.8
Crashes with a drinking driver25%25%26%

Counties in 2022

Every county with a fatal crash in 2022, by deaths. Counts under three are shown as "1–2" (small-count rule); the per-100,000 column is blank for them. 89 counties listed.

CountyFatal crashesDeathsPer 100,000Deaths 2015–2024
Polk County33336.4337
Scott County161810.3164
Linn County14146.0154
Dubuque County91212.166
Dallas County10108.760
Pottawattamie County101010.7118
Clinton County5919.650
Sioux County6821.937
Lee County7721.664
Black Hawk County575.3103
Story County576.846
Muscatine County5614.248
Warren County5610.656
Adair County5567.330
Johnson County553.180
Mills County5534.032
O'Brien County5535.120
Benton County4519.458
Harrison County4534.231
Woodbury County454.792
Carroll County4419.623
Chickasaw County4434.118
Des Moines County4410.429
Hardin County4424.331
Jones County4418.933
Montgomery County4439.714
Cerro Gordo County349.459
Fremont County3461.631
Humboldt County3441.621
Marshall County1–249.955
Allamakee County3321.224
Bremer County3311.821
Emmet County3332.711
Hamilton County3320.230
Ida County3344.115
Jackson County3315.531
Kossuth County3320.819
Monroe County3340.715
Plymouth County3311.643
Wapello County338.441
Washington County3313.330
Henry County1–2315.535
Jasper County1–237.945
Wright County1–2323.614
Audubon County1–21–2—13
Boone County1–21–2—32
Cass County1–21–2—40
Cedar County1–21–2—34
Cherokee County1–21–2—15
Clarke County1–21–2—25
Clayton County1–21–2—32
Crawford County1–21–2—25
Davis County1–21–2—17
Decatur County1–21–2—23
Howard County1–21–2—8
Iowa County1–21–2—49
Jefferson County1–21–2—14
Madison County1–21–2—30
Mahaska County1–21–2—30
Marion County1–21–2—37
Osceola County1–21–2—15
Poweshiek County1–21–2—29
Sac County1–21–2—21
Shelby County1–21–2—19
Tama County1–21–2—25
Van Buren County1–21–2—11
Webster County1–21–2—59
Winnebago County1–21–2—10
Winneshiek County1–21–2—30
Worth County1–21–2—18
Butler County1–21–2—18
Appanoose County1–21–2—17
Buchanan County1–21–2—23
Buena Vista County1–21–2—20
Calhoun County1–21–2—13
Clay County1–21–2—17
Delaware County1–21–2—22
Dickinson County1–21–2—20
Fayette County1–21–2—29
Guthrie County1–21–2—11
Hancock County1–21–2—13
Louisa County1–21–2—20
Lucas County1–21–2—12
Lyon County1–21–2—15
Mitchell County1–21–2—14
Palo Alto County1–21–2—11
Pocahontas County1–21–2—11
Ringgold County1–21–2—14
Wayne County1–21–2—12

Per 100,000 uses the 2024 population estimate for every year, so early-year rates are understated where a county has grown.

Hour of day

12am2%
1am2.3%
2am4.3%
3am2.6%
4am2.6%
5am3%
6am2%
7am2.6%
8am3.9%
9am4.3%
10am3.6%
11am3.6%
12pm3.9%
1pm3.6%
2pm7.5%
3pm4.9%
4pm4.9%
5pm6.6%
6pm6.6%
7pm6.6%
8pm4.9%
9pm3.9%
10pm5.9%
11pm3.9%

Weekday

Sunday13%
Monday17%
Tuesday13%
Wednesday13%
Thursday11%
Friday15%
Saturday18%

Road type

Other principal arterial29%
Major collector21%
Minor arterial17%
Local13%
Interstate13%
Minor collector7%
Other freeways and expressways0%

Questions and answers

How many people died in crashes in Iowa in 2022?

336 people in 305 fatal crashes, according to NHTSA's FARS 2022 file, or 10.5 per 100,000 residents.

Which county in Iowa had the most crash deaths in 2022?

Polk County with 33 deaths in 33 fatal crashes. The table on this page lists every county with a fatal crash that year.

How did 2022 compare with 2021 in Iowa?

336 deaths against 356 in 2021 (+-6%). Nationally the 2022 total was 42,721.

Provenance

Source: NHTSA Fatality Analysis Reporting System, 2022 national file (accident table, vehicle and person tables); US Census Bureau population estimates. Data through 31 Dec 2024; generated 30 Sep 2026.