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1999

Iowa · year

Iowa in 1999

Deaths 490Fatal crashes 428Per 100,000 —US deaths 41,717

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 1999.

In 1999, 490 people died in 428 fatal crashes in Iowa.

The death toll rose 9% from 449 in 1998 to 490 in 1999.

Iowa accounted for 1.2% of the 41,717 crash deaths recorded nationally that year.

27.8% of the state's fatal crashes that year had at least one driver reported as drinking.

37% of the crashes happened between noon to 6pm; Friday was the most common day.

Compared with 1998 and the nation

MeasureIowa 1999Iowa 1998United States 1999
Deaths49044941,717
Fatal crashes42838637,140
Deaths per 100,000 residents———
Crashes with a drinking driver28%26%34%

Counties in 1999

Every county with a fatal crash in 1999, by deaths. Counts under three are shown as "1–2" (small-count rule); the per-100,000 column is blank for them. 93 counties listed.

CountyFatal crashesDeathsPer 100,000Deaths 2015–2024
Polk County26285.4337
Johnson County121811.280
Scott County15158.5164
Pottawattamie County121415.0118
Clayton County71482.732
Webster County101335.259
Muscatine County91228.548
Warren County91221.356
Cerro Gordo County111125.959
Linn County11114.7154
Jasper County101128.945
Story County81110.746
Dubuque County101010.166
Clinton County81021.750
Crawford County81061.125
Black Hawk County996.8103
Sac County9994.421
Pocahontas County59128.511
Woodbury County887.592
Boone County7829.932
Grundy County7756.416
Harrison County7747.931
Fayette County6736.529
Wright County6755.014
Benton County6623.358
Dallas County665.260
Henry County6631.035
Kossuth County6641.619
Marshall County6614.955
Wapello County6616.841
Buchanan County5628.923
Delaware County5634.122
Jackson County5630.931
Bremer County5519.721
Davis County5554.417
Lee County5515.464
Osceola County5582.815
Plymouth County5519.443
Floyd County4533.329
Jones County4523.733
Page County4533.216
Poweshiek County4527.129
Tama County4529.925
Carroll County3524.523
Cedar County4421.934
Sioux County4410.937
Buena Vista County3419.220
Chickasaw County3434.118
Decatur County3452.223
Keokuk County3440.614
Mills County3427.232
Fremont County1–2461.631
Des Moines County337.829
Hardin County3318.231
Humboldt County3331.221
Ida County3344.115
Iowa County3318.349
Lucas County3334.312
Mahaska County3313.630
Marion County338.837
Washington County3313.330
Winneshiek County3315.230
Madison County1–2317.530
Adams County1–21–2—6
Appanoose County1–21–2—17
Butler County1–21–2—18
Cherokee County1–21–2—15
Dickinson County1–21–2—20
Hamilton County1–21–2—30
Howard County1–21–2—8
Mitchell County1–21–2—14
Shelby County1–21–2—19
Taylor County1–21–2—8
Union County1–21–2—16
Winnebago County1–21–2—10
Adair County1–21–2—30
Calhoun County1–21–2—13
Hancock County1–21–2—13
Allamakee County1–21–2—24
Audubon County1–21–2—13
Cass County1–21–2—40
Clarke County1–21–2—25
Clay County1–21–2—17
Franklin County1–21–2—14
Greene County1–21–2—22
Jefferson County1–21–2—14
Louisa County1–21–2—20
Lyon County1–21–2—15
Monona County1–21–2—29
Monroe County1–21–2—15
Montgomery County1–21–2—14
O'Brien County1–21–2—20
Van Buren County1–21–2—11

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

12am4.2%
1am4%
2am5.2%
3am1.9%
4am1.2%
5am3.8%
6am3.1%
7am2.8%
8am3.5%
9am4.2%
10am2.3%
11am3.5%
12pm4.9%
1pm6.3%
2pm6.3%
3pm8.5%
4pm5.2%
5pm5.6%
6pm3.8%
7pm4%
8pm3.3%
9pm5.6%
10pm3.8%
11pm3.1%

Weekday

Sunday16%
Monday13%
Tuesday13%
Wednesday13%
Thursday12%
Friday17%
Saturday16%

Questions and answers

How many people died in crashes in Iowa in 1999?

490 people in 428 fatal crashes, according to NHTSA's FARS 1999 file.

Which county in Iowa had the most crash deaths in 1999?

Polk County with 28 deaths in 26 fatal crashes. The table on this page lists every county with a fatal crash that year.

How did 1999 compare with 1998 in Iowa?

490 deaths against 449 in 1998 (+9%). Nationally the 1999 total was 41,717.

Provenance

Source: NHTSA Fatality Analysis Reporting System, 1999 national file (accident table); US Census Bureau population estimates (no county estimates before 2000 are used, so no rate is shown for this year). Data through 31 Dec 2024; generated 30 Sep 2026.