COUNTY FATALITY DATA
Mahaska County: smaller FARS fatality book
Mahaska County (IA) holds a smaller FARS book (21, #2,335 of 3,137) with 4 latest-year deaths.
- 21
- Total Fatalities (2016-2023)
- 4
- Latest Year Deaths
- Low count
- 18.3
- Per 100k Residents
- Near average
- Stable
- Trend
Smaller fatality book
Mahaska County ranks #2,335 of 3,137 by total FARS fatalities (21 across 2016-2023) - bottom-third book size.
Mahaska County in the smaller-book third
According to NHTSA FARS, Mahaska County carries a bottom-third fatality book (21 across 2016-2023, #2,335 of 3,137) at 18.3/100k.
- #975 of 2,328
- among rated U.S. counties by rate
- #2,335 of 3,137
- smaller-book third
- #22 of 68
- in IA by rate
- Stable
- fatality trend
NHTSA county milepost
Milepost MAHASKA-123 · Mahaska 18.3/100k · #975 of 2,328
Mahaska County · 18.3/100k · stable
- POST 18.3/100k
- BAND #975 of 2,328
- VOL 21 book
- AVG Stable
- YOY 19 crash
- RATE +16.0% 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 Mahaska County compare?
2023 road deaths per 100,000 residents. Choose any comparison from the menu.
Mahaska County is About the same as 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, Mahaska County ranks 15 for per-capita risk, above the state's own per-capita average of 15.8 per 100,000 -- nationally, this rate places it close to the national middle by that per-capita measure. The gap between Mahaska County's rate and the state average is 2.5 per 100,000. Its closest per-capita peer statewide is Madison County, at 23.6 per 100,000 (a difference of 5.3). 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).
Mahaska County's rate vs. every rated U.S. county
Deaths per 100,000 residents -- counties with 10,000+ people, NHTSA FARS over Census population
18 Around the middle a lower per-capita rate than 42% 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 Mahaska County
Contextual links from this profile to rankings, tools, research, and peer geographies on PlainRoadSafety.
- Mahaska 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 MLetter index including IA counties
Frequently Asked Questions
How many traffic fatalities occurred in Mahaska County, Iowa?
Mahaska County recorded 21 total traffic fatalities across 19 reported crashes over the data period (2016-2023). The most recent year saw 4 fatalities. The county averages approximately 2.3 fatalities per year.
What is the leading cause of road fatalities in Mahaska County?
Cause-code breakdowns are not individually published for Mahaska County in the current FARS release. Statewide data for Iowa may provide additional context.
Is the trend of road fatalities in Mahaska County increasing or decreasing?
The trend in Mahaska County is stable. Fatality counts have remained relatively consistent over the data period.
What is the fatality rate per capita in Mahaska County?
Mahaska County has a fatality rate of 18.3 per 100,000 residents, which places it close to the national middle by that per-capita measure among the 3,137 U.S. counties in this dataset.
Where does Mahaska County rank for road fatality rate?
According to the National Highway Traffic Safety Administration Fatality Analysis Reporting System, Mahaska County ranks #975 of 2,328 U.S. counties by road-fatality rate per 100,000 residents (highest first) and #22 of 68 rated counties in IA, the same sort used on the deadliest-states and county rate listings. See /methodology#corpus-placement.
How does Mahaska County compare to the rest of Iowa?
Mahaska County's per-capita rate of 18.3 per 100,000 residents is above 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 Mahaska 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.