Fatal Roads

States › Iowa › 2024

2024

Iowa · year

Iowa in 2024

Deaths 356Fatal crashes 324Per 100,000 11.0US deaths 39,254

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. 2024 is the latest data year; NHTSA may revise it in a later release.

In 2024, 356 people died in 324 fatal crashes in Iowa, 11.0 deaths per 100,000 residents against 11.5 nationally.

The death toll fell 6% from 379 in 2023 to 356 in 2024.

Iowa accounted for 0.9% of the 39,254 crash deaths recorded nationally that year.

23.1% 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 (26%).

33% of the crashes happened between noon to 6pm; Sunday was the most common day.

Compared with 2023 and the nation

MeasureIowa 2024Iowa 2023United States 2024
Deaths35637939,254
Fatal crashes32433036,297
Deaths per 100,000 residents11.011.811.5
Crashes with a drinking driver23%25%25%

Counties in 2024

Every county with a fatal crash in 2024, by deaths. Counts under three are shown as "1–2" (small-count rule); the per-100,000 column is blank for them. 86 counties listed.

CountyFatal crashesDeathsPer 100,000Deaths 2015–2024
Polk County40479.1337
Scott County222313.1164
Linn County16187.8154
Black Hawk County151511.3103
Dubuque County101111.166
Woodbury County101110.392
Muscatine County9921.448
Pottawattamie County999.6118
Johnson County885.080
Washington County5835.330
Cerro Gordo County7716.559
Clinton County4715.250
Iowa County6636.549
Plymouth County5623.243
Jones County5523.733
Benton County4415.558
Cedar County4421.934
Greene County4446.222
Lee County4412.464
Marion County4411.737
Marshall County449.955
Poweshiek County4421.729
Story County443.946
Wapello County4411.241
Warren County447.156
Carroll County3419.623
Hardin County3424.331
Jasper County3410.545
Webster County3410.859
Worth County1–2454.718
Des Moines County337.829
Fayette County3315.729
Hamilton County3320.230
Henry County3315.535
Jackson County3315.531
Kossuth County3320.819
Madison County3317.530
Mills County3320.432
Sac County3331.521
Winnebago County3328.910
Boone County1–2311.232
Buena Vista County1–2314.420
Decatur County1–2339.223
Humboldt County1–2331.221
Sioux County1–238.237
Wayne County1–2345.312
Allamakee County1–21–2—24
Butler County1–21–2—18
Clay County1–21–2—17
Clayton County1–21–2—32
Crawford County1–21–2—25
Dallas County1–21–2—60
Delaware County1–21–2—22
Dickinson County1–21–2—20
Fremont County1–21–2—31
Guthrie County1–21–2—11
Hancock County1–21–2—13
Lyon County1–21–2—15
O'Brien County1–21–2—20
Shelby County1–21–2—19
Tama County1–21–2—25
Van Buren County1–21–2—11
Winneshiek County1–21–2—30
Mahaska County1–21–2—30
Audubon County1–21–2—13
Buchanan County1–21–2—23
Calhoun County1–21–2—13
Cass County1–21–2—40
Chickasaw County1–21–2—18
Clarke County1–21–2—25
Davis County1–21–2—17
Floyd County1–21–2—29
Franklin County1–21–2—14
Ida County1–21–2—15
Jefferson County1–21–2—14
Keokuk County1–21–2—14
Lucas County1–21–2—12
Mitchell County1–21–2—14
Monona County1–21–2—29
Monroe County1–21–2—15
Montgomery County1–21–2—14
Page County1–21–2—16
Palo Alto County1–21–2—11
Ringgold County1–21–2—14
Union County1–21–2—16
Wright County1–21–2—14

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

12am4.9%
1am2.5%
2am1.5%
3am3.4%
4am2.2%
5am2.2%
6am2.2%
7am1.9%
8am4.3%
9am2.8%
10am2.2%
11am5.6%
12pm4%
1pm4.9%
2pm5.9%
3pm6.5%
4pm4.6%
5pm7.4%
6pm5.6%
7pm5.6%
8pm5.2%
9pm5.9%
10pm4.6%
11pm4.3%

Weekday

Sunday17%
Monday13%
Tuesday12%
Wednesday16%
Thursday11%
Friday15%
Saturday15%

Road type

Other principal arterial26%
Major collector23%
Local19%
Minor arterial19%
Interstate7%
Minor collector5%
Other freeways and expressways0%

Questions and answers

How many people died in crashes in Iowa in 2024?

356 people in 324 fatal crashes, according to NHTSA's FARS 2024 file, or 11.0 per 100,000 residents.

Which county in Iowa had the most crash deaths in 2024?

Polk County with 47 deaths in 40 fatal crashes. The table on this page lists every county with a fatal crash that year.

How did 2024 compare with 2023 in Iowa?

356 deaths against 379 in 2023 (+-6%). Nationally the 2024 total was 39,254.

Provenance

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