COUNTY FATALITY DATA
Johnson County: lower-rate fatality band
Johnson County (IA) is in the lower per-capita third: 6.3/100k (#2,114 of 2,328). Data period: 2016-2023.
- 67
- Total Fatalities (2016-2023)
- 10
- Latest Year Deaths
- Near average count
- 6.3
- Per 100k Residents
- Well below average
- Stable
- Trend
Lower per-capita fatality band
Johnson County ranks #2,114 of 2,328 by deaths per 100,000 residents (6.3/100k) - bottom-third rate among rated U.S. counties.
Johnson County in the lower-rate third
According to NHTSA FARS, Johnson County sits in the lower-rate third at 6.3 per 100k (#2,114 of 2,328), #58 of 68 in IA.
- #2,114 of 2,328
- lower-rate third
- #1,083 of 3,137
- by total FARS fatalities
- #58 of 68
- in IA by rate
- Stable
- fatality trend
NHTSA county milepost
Milepost JOHNSON-103 · Johnson 6.3/100k · #2,114 of 2,328
Johnson County · 6.3/100k · stable
- FARS 6.3/100k
- NHTSA #2,114 of 2,328
- MILE 67 book
- POST Stable
- BAND 60 crash
- VOL -60.1% vs IA
Stamps derive from this county's NHTSA FARS row (per-100k or book, corpus rank, trend, nationwide peer NAME, vs-state gap), not a trip-risk forecast. PlainRoadSafety is informational only. See our disclaimer. Verify with NHTSA FARS → · Read with methodology → · Understanding road fatality data → · Iowa state profile →
How does Johnson County compare?
2023 road deaths per 100,000 residents. Choose any comparison from the menu.
Johnson County is 60% safer than the comparison
2023 road deaths from the NHTSA Fatality Analysis Reporting System over population from the U.S. Census Bureau Population Estimates Program (Vintage 2023). Rates shown for counties with 10,000+ residents and a 2023 FARS record.
Among the 15 rated counties in Iowa, Johnson County ranks 15 for per-capita risk, below the state's own per-capita average of 15.8 per 100,000 -- nationally, this rate puts it among the safest one in ten U.S. counties by that per-capita measure. The gap between Johnson County's rate and the state average is 9.5 per 100,000. Its closest per-capita peer statewide is Madison County, at 23.6 per 100,000 (a difference of 17.3). Its peer counties, highest to lowest per 100,000 residents: Louisa County (66.6), Union County (50.4), Harrison County (47.7), Cass County (38.1), Floyd County (32.6), Grundy County (32.3), Iowa County (30.5), Cedar County (27.3), Poweshiek County (27.1), Page County (26.6), Boone County (26.3), Winneshiek County (25.2), Wright County (23.7), Madison County (23.6).
Johnson County's rate vs. every rated U.S. county
Deaths per 100,000 residents -- counties with 10,000+ people, NHTSA FARS over Census population
6 Among the safer counties a lower per-capita rate than 91% of 2,328 rated counties
rated U.S. counties, bucketed by value
Each bar is a band; taller bars hold more rated counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source NHTSA FARS over U.S. Census Bureau population estimates · 2026-09-03
More road safety data related to Johnson County
Contextual links from this profile to rankings, tools, research, and peer geographies on PlainRoadSafety.
- Johnson County vs other counties by ratePer-100k fatality comparison
- Iowa statewide fatality dataAll counties in this state
- Deadliest states for drivingContext for IA
- State fatality changesYear-over-year state trends
- Browse all U.S. countiesAlphabetical county index
- All state profiles51 state dashboards
- State vs U.S. safety comparisonRoute-level lookup tool
- National statistics downloadFARS CSV + findings
- How to read FARS fatality dataMethodology primer
- Per-mile vs per-capita road riskRate denominator explained
- Counties starting with JLetter index including IA counties
Frequently Asked Questions
How many traffic fatalities occurred in Johnson County, Iowa?
Johnson County recorded 67 total traffic fatalities across 60 reported crashes over the data period (2016-2023). The most recent year saw 10 fatalities. The county averages approximately 7.4 fatalities per year.
What is the leading cause of road fatalities in Johnson County?
Despite a comparatively active crash history (60 recorded crashes), individual cause-code breakdowns are not published for Johnson County in the current FARS release. Statewide data for Iowa may provide additional context.
Is the trend of road fatalities in Johnson County increasing or decreasing?
The trend in Johnson County is stable. Fatality counts have remained relatively consistent over the data period.
What is the fatality rate per capita in Johnson County?
Johnson County has a fatality rate of 6.3 per 100,000 residents, which puts it among the safest one in ten U.S. counties by that per-capita measure among the 3,137 U.S. counties in this dataset.
Where does Johnson County rank for road fatality rate?
According to the National Highway Traffic Safety Administration Fatality Analysis Reporting System, Johnson County ranks #2,114 of 2,328 U.S. counties by road-fatality rate per 100,000 residents (highest first) and #58 of 68 rated counties in IA, the same sort used on the deadliest-states and county rate listings. See /methodology#corpus-placement.
How does Johnson County compare to the rest of Iowa?
Johnson County's per-capita rate of 6.3 per 100,000 residents is below the Iowa county average of 15.8. Visit the Iowa state page for the full county-by-county breakdown.
Where does the road fatality data for Johnson County come from?
All road fatality data comes from the NHTSA Fatality Analysis Reporting System (FARS), a census of fatal motor vehicle crashes on public roads in the United States. FARS data covers the period 2016-2023 and includes all crashes resulting in at least one fatality within 30 days.