Linn County, Iowa: fatal crash statistics

Counties of Iowa by year (CSV)Cite this page

FARS records 18 deaths in 16 fatal crashes in Linn County in 2024.

FARS records 154 deaths in 138 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 6.8 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, Linn County was number 3 of 99 counties of Iowa.

Deaths in Linn County rose by 10.8% between the ten years 2005 to 2014 (139) and the ten years 2015 to 2024 (154).

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

From 2015 to 2024, 38.4% of the fatal crashes in Linn 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 2 Oct 2026.

This page rests on the FARS 2024 annual file. NHTSA released it on 1 Apr 2026. NHTSA can revise the counts in the final file. Release dates

Figure 1.Deaths in Linn 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.Linn County: deaths and fatal crashes by year, 2015 to 2024
Year	Deaths	Fatal crashes	Crashes with a driver recorded as drinking
2024	18	16	6
2023	27	22	8
2022	14	14	7
2021	14	13	5
2020	12	11	5
2019	15	14	5
2018	13	11	3
2017	16	15	3
2016	20	17	3
2015	5	5	1 or 2
2015 to 2024	154	138	46

Each year from 1975

Figure 2.Deaths in Linn County by year, 1975 to 2024

Tallest column: 27 (2023)2024: 18

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

Table 2.Linn County: deaths and fatal crashes by year, 1975 to 2024
Year	Deaths	Fatal crashes
2024	18	16
2023	27	22
2022	14	14
2021	14	13
2020	12	11
2019	15	14
2018	13	11
2017	16	15
2016	20	17
2015	5	5
2014	14	13
2013	12	11
2012	18	17
2011	8	8
2010	11	11
2009	15	14
2008	12	11
2007	16	15
2006	20	17
2005	13	11
2004	17	14
2003	16	16
2002	14	14
2001	11	9
2000	22	19
1999	11	11
1998	14	13
1997	14	13
1996	15	12
1995	10	10
1994	15	14
1993	18	17
1992	12	11
1991	15	13
1990	11	9
1989	24	22
1988	22	17
1987	17	15
1986	16	14
1985	18	16
1984	12	12
1983	13	10
1982	16	14
1981	18	17
1980	16	15
1979	24	20
1978	17	16
1977	17	17
1976	21	19
1975	25	21

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.Linn County beside Iowa and the United States: deaths for each 100,000 residents
Period	Linn County	Iowa	United States
2024	7.8	11.0	11.5
2015 to 2024, in a year	6.8	11.0	11.8

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. Linn County had 230,389 residents in 2024.

Factors that NHTSA records

Table 4.Linn County: counts by recorded factor, 2015 to 2024
Factor	Count	Counted among	Share	Share in Iowa
A driver recorded as drinkingof 138 fatal crashes	46	138 fatal crashes	33.3%	25.4%
A speeding-related driverof 138 fatal crashes	36	138 fatal crashes	26.1%	20.2%
No restraint usedof 97 occupant deaths with restraint use known	31	97 occupant deathswith restraint use known	32.0%	48.1%
Pedestriansof 154 deaths	12	154 deaths	7.8%	7.1%
Bicyclistsof 154 deaths	1 or 2	154 deaths	1.3%	2.0%
Motorcyclistsof 154 deaths	33	154 deaths	21.4%	15.7%
On a rural roadof 138 fatal crashes with the condition reported	53	138 fatal crasheswith the condition reported	38.4%	71.5%
In the darkof 137 fatal crashes with the condition reported	49	137 fatal crasheswith the condition reported	35.8%	39.9%

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 2 Oct 2026.

Weekday, time and road class

Table 5.Linn County: fatal crashes by weekday and time of day, 2015 to 2024
Weekday	Midnight to 6 a.m.	6 a.m. to noon	Noon to 6 p.m.	6 p.m. to midnight	All
Sunday	6	1 or 2	8	1 or 2	17
Monday	3	4	8	6	21
Tuesday	1 or 2	5	4	5	16
Wednesday	3	5	6	8	22
Thursday	1 or 2	0	7	1 or 2	11
Friday	1 or 2	7	4	16	29
Saturday	5	3	6	8	22
All days	23	25	43	47	138

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.Linn County: fatal crashes by road function class, 2015 to 2024
Road function class	Fatal crashes	Share	Share in Iowa
Interstate	19	13.8%	11.0%
Other freeways and expressways	0	0.0%	0.1%
Other principal arterial	49	35.5%	29.3%
Minor arterial	23	16.7%	17.4%
Major collector	19	13.8%	20.0%
Minor collector	7	5.1%	5.7%
Local	21	15.2%	16.4%
Not reported	0	n/a	n/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.Linn County: fatal crashes by light condition, 2015 to 2024
Light condition	Fatal crashes
Daylight	76
Dark, not lighted	26
Dark, lighted	22
Dawn	1 or 2
Dusk	10
Dark, lighting unknown	1 or 2
Other or unknown	1 or 2

Table 8.Linn County: fatal crashes by weather, 2015 to 2024
Weather	Fatal crashes
Clear	101
Cloudy	21
Rain	11
Snow, sleet or freezing rain	1 or 2
Fog, smog or smoke	1 or 2
Crosswinds or blowing sand/snow	0
Other or not reported	1 or 2

Routes in the county

Table 9.Signed routes in Linn County that have a page: fatal crashes, 2015 to 2024
Route	Type	In Linn	In all of Iowa
Interstate 380	Interstate	20	39
US Route 30	US highway	9	75
US Route 151	US highway	22	39

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.Linn 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
Linn County: 6.8

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 Linn County
County	State	Deaths, 2024	Deaths, 2015 to 2024	For each 100,000 residents in a year
Benton County	Iowa	4	58	22.6
Buchanan County	Iowa	1 or 2	23	11.0
Cedar County	Iowa	4	34	18.5
Delaware County	Iowa	1 or 2	22	12.7
Johnson County	Iowa	8	80	5.2
Jones County	Iowa	5	33	15.9

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 Linn County. The list is for navigation and is in name order. The number is the deaths from 2015 to 2024.

Official channels

NHTSA Fatality and Injury Reporting System Tool (FIRST)NHTSA's query tool for FARS counts.
NHTSA FARS EncyclopediaNHTSA's tables of FARS data.
Iowa Governor's Traffic Safety BureauThe highway safety office of Iowa.

These links go to the sites of the agencies. They were checked on 2 Oct 2026.

Cite this page

Fatal Roads. Linn County, Iowa: fatal crash statistics. https://fatalroads.com/county/ia/linn/. Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, FARS 2024 annual file. Data to 31 Dec 2024.

The address of this page does not change.

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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 31 Dec 2024. 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 Linn in the ten years before 2015?

FARS records 139 deaths in Linn County from 2005 to 2014. It records 154 deaths from 2015 to 2024.

What was the rate of Linn in 2024?

The rate of Linn County in 2024 was 7.8 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 Linn had a driver recorded as drinking?

FARS records a driver as drinking in 46 of 138 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 Linn?

FARS records 20 fatal crashes on Interstate 380 in the county from 2015 to 2024. FARS records 9 fatal crashes on US Route 30 in the county from 2015 to 2024. FARS records 22 fatal crashes on US Route 151 in the county from 2015 to 2024.