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

Black Hawk County, Iowa: fatal crash statistics

FARS records 15 deaths in 15 fatal crashes in Black Hawk County in 2024.

FARS records 103 deaths in 95 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 7.8 deaths for each 100,000 residents in a year.

The rate of Iowa in the same years is 11.0.

By deaths from 2015 to 2024, Black Hawk County was number 5 of 99 counties of Iowa.

Deaths in Black Hawk County rose by 1.0% between the ten years 2005 to 2014 (102) and the ten years 2015 to 2024 (103).

In the counties of Iowa the deaths fell by 10.1% between the same years.

From 2015 to 2024, 33.7% of the fatal crashes in Black Hawk County with a known setting were rural, against 71.5% in Iowa.

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 Black Hawk County by year, 2015 to 2024

Table 1 has the numbers. Go to the table

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

Deaths and fatal crashes by year

Table 1.Black Hawk County: deaths and fatal crashes by year, 2015 to 2024
YearDeathsFatal crashesCrashes with a driver recorded as drinking
202415151 or 2
202313120
2022751 or 2
2021990
2020991 or 2
201911105
20181070
2017881 or 2
201611111 or 2
20151091 or 2
2015 to 20241039513
Each year from 1975
Figure 2.Deaths in Black Hawk County by year, 1975 to 2024

Tallest column: 29 (1978)2024: 15

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

Table 2.Black Hawk County: deaths and fatal crashes by year, 1975 to 2024
YearDeathsFatal crashes
20241515
20231312
202275
202199
202099
20191110
2018107
201788
20161111
2015109
201455
20131212
201266
20111515
20101010
200955
20081313
2007109
2006109
20051613
20041716
20031716
20021413
20011211
20001212
199999
19981210
19971312
19961817
19951313
19941615
19931611
19921414
19911312
19901716
1989109
19881414
19871312
198677
198577
1984109
19831715
19821616
19812824
19801611
19792524
19782920
19772018
19762018
19752219

Note: a count of 1 or 2 is written "1 or 2". A death is in FARS when it occurs in 30 days or less after the crash.

Rate for each 100,000 residents

Table 3.Black Hawk County beside Iowa and the United States: deaths for each 100,000 residents
PeriodBlack Hawk CountyIowaUnited States
202411.411.011.5
2015 to 2024, in a year7.811.011.8

Note: the rate divides the deaths in the county by its residents. Persons who do not live in the county are in the deaths, not in the residents.

Population: Census Bureau estimates, vintage 2025. Black Hawk County had 131,473 residents in 2024.

Factors that NHTSA records

Table 4.Black Hawk County: counts by recorded factor, 2015 to 2024
FactorCountCounted amongShareShare in Iowa
A driver recorded as drinkingof 95 fatal crashes1395 fatal crashes25.4%
A speeding-related driverof 95 fatal crashes1795 fatal crashes20.2%
No restraint usedof 55 occupant deaths with restraint use known2455 occupant deathswith restraint use known48.1%
Pedestriansof 103 deaths10103 deaths7.1%
Bicyclistsof 103 deaths6103 deaths2.0%
Motorcyclistsof 103 deaths18103 deaths15.7%
On a rural roadof 95 fatal crashes with the condition reported3295 fatal crasheswith the condition reported71.5%
In the darkof 93 fatal crashes with the condition reported3093 fatal crasheswith the condition reported39.9%

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.Black Hawk County: 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
Sunday5331 or 213
Monday1 or 264315
Tuesday038415
Wednesday1 or 236718
Thursday1 or 21 or 27010
Friday1 or 21 or 261 or 212
Saturday1 or 21 or 25412
All days1321392295

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.Black Hawk County: fatal crashes by road function class, 2015 to 2024
Road function classFatal crashesShareShare in Iowa
Interstate99.5%11.0%
Other freeways and expressways1 or 21.1%0.1%
Other principal arterial2223.2%29.3%
Minor arterial2627.4%17.4%
Major collector1111.6%20.0%
Minor collector1 or 22.1%5.7%
Local2425.3%16.4%
Not reported0n/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

Light condition and weather
Table 7.Black Hawk County: fatal crashes by light condition, 2015 to 2024
Light conditionFatal crashes
Daylight56
Dark, not lighted17
Dark, lighted13
Dawn4
Dusk3
Dark, lighting unknown0
Other or unknown1 or 2
Table 8.Black Hawk County: fatal crashes by weather, 2015 to 2024
WeatherFatal crashes
Clear64
Cloudy23
Rain6
Snow, sleet or freezing rain1 or 2
Fog, smog or smoke0
Crosswinds or blowing sand/snow0
Other or not reported1 or 2

Routes in the county

Table 9.Signed routes in Black Hawk County that have a page: fatal crashes, 2015 to 2024
RouteTypeIn Black HawkIn all of Iowa
Interstate 35Interstate1 or 266
Interstate 380Interstate739
US Route 63US highway834
US Route 218US highway749

Note: the table has each route with a page that has a fatal crash in the county, in name order. Local streets and county roads have no page. Their crashes are in the county totals. All routes in Iowa

Adjacent counties

These lists are for navigation. They are in name order.

Figure 3.Black Hawk County on the county map of Iowa

Deaths for each 100,000 residents in a year, 2015 to 2024

  • Fewer than 1015 counties
  • 10 to 14.941 counties
  • 15 to 19.924 counties
  • 20 to 29.915 counties
  • 30 or more4 counties
  • Black Hawk County: 7.8

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. The full map and the table of counties of Iowa

Table 10.Counties that share a boundary line with Black Hawk County
CountyStateDeaths, 2024Deaths, 2015 to 2024For each 100,000 residents in a year
Benton CountyIowa45822.6
Bremer CountyIowa0218.4
Buchanan CountyIowa1 or 22311.0
Butler CountyIowa1 or 21812.5
Grundy CountyIowa01613.0
Tama CountyIowa1 or 22514.7

Source of the list: Census Bureau county adjacency file, 2026 edition.

Counties of similar population

These counties of Iowa have a population nearest to that of Black Hawk County. The list is for navigation and is in name order. The number is the deaths from 2015 to 2024.

Official channels

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

Cite this page

Fatal Roads. Black Hawk County, Iowa: fatal crash statistics. https://fatalroads.com/county/ia/black-hawk/. 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. Map: Census Bureau cartographic boundary file, 2021 edition. Data to . The figures are totals. No page of this site is about one crash or one person.

How the figures are made. Data sources and licences. Corrections.

Questions

How many deaths did FARS record in Black Hawk in the ten years before 2015?

FARS records 102 deaths in Black Hawk County from 2005 to 2014. It records 103 deaths from 2015 to 2024.

What was the rate of Black Hawk in 2024?

The rate of Black Hawk County in 2024 was 11.4 deaths for each 100,000 residents. The rate of Iowa was 11.0. The rate of the United States was 11.5.

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

FARS records a driver as drinking in 13 of 95 fatal crashes from 2015 to 2024. This count is not NHTSA's alcohol-impaired measure. NHTSA says that alcohol data is often missing, so the count may be too low.

How many fatal crashes did FARS record on signed routes in Black Hawk?

4 signed routes in the county have a page. FARS records 23 fatal crashes on them in the county from 2015 to 2024. The table of routes on this page gives the count for each route.