Fatal crash profile · County

Traffic deaths in Johnson County, Iowa

County in Iowa · United States

Deaths, 2024
8
Fatal crashes
8
Population
158.9K

In 2024, 8 people died in 8 fatal crashes in Johnson County, Iowa. That was 20.0% fewer than in 2023 (10) and the fewest since 2022. The death rate was 5.0 per 100,000 residents, compared with 11.0 in Iowa and 11.5 in the United States. Johnson County had the 9th most traffic deaths among Iowa's counties. Between 2020 and 2024, 35 people died, an average of 7.0 a year. That rate is based on fewer than 20 deaths, so it can swing a lot from year to year. Pedestrians accounted for 13% of deaths, and 38% of fatal crashes were speeding-related.

Deaths

Traffic deaths

5.0

deaths per 100,000 residents in 2024

  • About half the rate in Iowa: 11.0
  • About 45 percent of the rate in the United States: 11.5

4.5

average deaths per 100,000 residents a year, 2020–2024

  • About 40 percent of the average in Iowa: 11.0
  • About 35 percent of the average in the United States: 12.3

-20%

change in deaths from 2023 to 2024

10 deaths in 2023, 8 in 2024

  • Iowa: -6%
  • The United States: -4%
Traffic deaths by year, 2020–2024
Category Deaths Fatal crashes
2020 3 3
2021 9 9
2022 5 5
2023 10 9
2024 8 8

People who died within 30 days of a crash. A fatal crash can kill more than one person.

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Deaths per 100,000 residents, 2020–2024
Category Deaths per 100,000
2020 2.0
2021 5.8
2022 3.2
2023 6.3
2024 5.0

Uses Census population estimates, available from 2000.

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Road users

Who died

13%

of deaths were pedestrians

  • About 1.5 times the share in Iowa: 8%
  • About two-thirds of the share in the United States: 18%
Who died in 2024
Category Deaths
Vehicle occupants and others 3
Pedestrians 1
Motorcyclists 3
Cyclists 1
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Deaths by type, 2024
Type Deaths Share in Johnson County Share in Iowa
Pedestrians 1 13% 8%
Motorcyclists 3 38% 18%
Cyclists 1 13% 1%
Alcohol-impaired driving crashes 3 38% 33%
Speeding-related crashes 3 38% 20%

Alcohol-impaired and speeding-related count everyone killed in those crashes, so a death can appear in more than one row.

Crash factors

Speeding, alcohol, night and weekend crashes

38%

of fatal crashes were speeding-related

  • About 1.9 times the share in Iowa: 19%
  • About 1.3 times the share in the United States: 28%

38%

of fatal crashes involved a drinking driver

  • About 1.6 times the share in Iowa: 23%
  • About 1.5 times the share in the United States: 25%
Crash factors in 2024
Category Johnson County Iowa United States
Speeding-related 37.5% 23.1% 24.8%
Alcohol-involved 37.5% 19.4% 28.1%
At night 62.5% 47.8% 53.6%
At weekends 37.5% 31.8% 32.6%

Share of fatal crashes. Alcohol-involved means a police-reported drinking driver.

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Timing

When crashes happen

63%

of fatal crashes happened at night

  • About 1.3 times the share in Iowa: 48%
  • About 1.2 times the share in the United States: 54%

38%

of fatal crashes happened at weekends

  • About 1.2 times the share in Iowa: 32%
  • About 1.2 times the share in the United States: 33%
Fatal crashes by hour of day
Category Fatal crashes
12am 1
1am 3
2am 1
3am 0
4am 1
5am 3
6am 0
7am 1
8am 4
9am 0
10am 0
11am 3
12pm 4
1pm 1
2pm 0
3pm 0
4pm 3
5pm 1
6pm 3
7pm 0
8pm 0
9pm 2
10pm 1
11pm 2

All crashes 2020–2024.

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Fatal crashes by day of week
Category Fatal crashes
Sun 8
Mon 7
Tue 4
Wed 5
Thu 0
Fri 6
Sat 4

All crashes 2020–2024.

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Fatal crashes by month
Category Fatal crashes
Jan 2
Feb 0
Mar 4
Apr 4
May 3
Jun 2
Jul 2
Aug 6
Sep 4
Oct 2
Nov 4
Dec 1

All crashes 2020–2024.

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Conditions

Weather and light

Weather at the time of the crash
Category Fatal crashes
Clear 25
Cloudy 4
Rain 3
Snow 1

All crashes 2020–2024. Crashes where conditions were not reported are left out.

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Light conditions at the time of the crash
Category Fatal crashes
Daylight 19
Dark - Not Lighted 10
Dark - Lighted 3
Dark - Unknown Lighting 2

All crashes 2020–2024. Crashes where conditions were not reported are left out.

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Roads and vehicles

Where and what, 2020–2024

Roads with the most fatal crashes

  1. I-807
  2. SR-15
  3. 1ST AVE2
  4. CR-F20/AMANA RD1
  5. HALF MOON AVE NW1
  6. CR-F52/BLACK DIAMOND RD SW1
  7. CR-W66/DUBUQUE ST NE1
  8. CR-W66/DUBUQUE1
  9. CR-F14/WAPSI AVE/SUTLIFF RD NE1
  10. 12TH AVE1

Road names as recorded in police reports.

Vehicles involved, by type
Category Vehicles
Cars 19
Medium and heavy trucks 12
SUVs 11
Motorcycles 6
Pickup trucks 5
Other vehicles 1
Vans 1

All crashes 2020–2024.

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Vehicles most often involved

  1. Chevrolet Silverado4
  2. Volvo Truck VNL3
  3. International LT6252
  4. Freightliner Cascadia2
  5. Ford Taurus2
  6. Chevrolet Malibu2
  7. Chevrolet Impala2
  8. Jeep Grand Cherokee1
  9. Jeep Cherokee1
  10. Hyundai Santa Fe1

Reflects how common a vehicle is as well as crash involvement; not a safety rating.

Crashes

Fatal crashes

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Fatal crashes in 2024. Crashes without reported coordinates are not shown.

Filter crashes
Crash factors
Date Location Deaths
Nov 20, 2024 Iowa City 1
Sep 15, 2024 Iowa City 1
Aug 21, 2024 Oxford 1
Aug 4, 2024 — 1
Jun 9, 2024 — 1
Jun 3, 2024 — 1
Mar 22, 2024 Iowa City 1
Mar 1, 2024 — 1
Dec 8, 2023 — 1
Sep 26, 2023 — 1
Aug 7, 2023 Iowa City 1
May 27, 2023 Iowa City 1
May 22, 2023 Iowa City 1
Apr 11, 2023 — 1
Apr 8, 2023 — 1
Jan 10, 2023 North Liberty 1
Jan 8, 2023 Iowa City 2
Oct 29, 2022 — 1
Aug 31, 2022 — 1
Jul 19, 2022 Coralville 1
Jul 10, 2022 Iowa City 1
Mar 20, 2022 — 1
Nov 15, 2021 Iowa City 1
Nov 8, 2021 — 1
Oct 31, 2021 — 1

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Nearby and related

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Source: NHTSA Fatality Analysis Reporting System (FARS), 2020–2024. A fatal crash is one in which at least one person died within 30 days. Population: US Census Bureau estimates.