COUNTY FATALITY DATA
Jefferson County, Kansas
Road fatality data for Jefferson County (KS). Data period: 2016-2023.
- 41
- Total Fatalities (2016-2023)
- 3
- Latest Year Deaths
- Low count
- 16.4
- Per 100k Residents
- Below average
- Decreasing
- Trend
Falling fatality trend
Jefferson County's FARS series is labeled Decreasing with 3 deaths in the latest year.
Jefferson County on a falling FARS trend
According to the National Highway Traffic Safety Administration Fatality Analysis Reporting System, Jefferson County ranks #1,127 of 2,328 U.S. counties by road-fatality rate per 100,000 residents (highest first) and #17 of 36 rated counties in KS. Limited data: Jefferson County's per-capita rate rests on just 3 road deaths in the year measured, so a single death more or fewer would move it by a third or more and its rank is not a like-for-like comparison with counties that have more deaths. Jefferson County's fatality rate of 16.4 per 100,000 residents places it close to the national middle by that per-capita measure.
- #1,127 of 2,328
- among rated U.S. counties by rate
- #1,638 of 3,137
- by total FARS fatalities
- #17 of 36
- in KS by rate
- Decreasing
- fatality trend
NHTSA county milepost
Milepost JEFFERSON-87 · Jefferson 16.4/100k · #1,127 of 2,328
Jefferson County · 16.4/100k · decreasing
- BAND 16.4/100k
- VOL #1,127 of 2,328
- AVG 41 book
- YOY Decreasing
- RATE 34 crash
- RANK +4.4% vs KS
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 → · Kansas state profile →
How does Jefferson County compare?
2023 road deaths per 100,000 residents. Choose any comparison from the menu.
Jefferson 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.
Limited data: Jefferson County's per-capita rate rests on just 3 road deaths in the year measured, so a single death more or fewer would move it by a third or more and its rank is not a like-for-like comparison with counties that have more deaths.
Among the 15 rated counties in Kansas, Jefferson County ranks 15 for per-capita risk, above the state's own per-capita average of 15.7 per 100,000 -- nationally, this rate places it close to the national middle by that per-capita measure. The gap between Jefferson County's rate and the state average is 0.7 per 100,000. Its closest per-capita peer statewide is Reno County, at 17.9 per 100,000 (a difference of 1.5). Its peer counties, highest to lowest per 100,000 residents: Marion County (42.8), Cherokee County (31.5), Labette County (30.4), Sumner County (26.9), Butler County (23.3), Lyon County (21.8), Dickinson County (21.7), Harvey County (20.9), Bourbon County (20.8, limited data), Barton County (20.1), Neosho County (19.5, limited data), Franklin County (19.1), Osage County (19.0, limited data), Reno County (17.9).
Jefferson County's rate vs. every rated U.S. county
Deaths per 100,000 residents -- counties with 10,000+ people, NHTSA FARS over Census population
16 Around the middle a lower per-capita rate than 48% 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 Jefferson County
Contextual links from this profile to rankings, tools, research, and peer geographies on PlainRoadSafety.
- Jefferson County vs other counties by rate Per-100k fatality comparison
- Kansas statewide fatality data All counties in this state
- Deadliest states for driving Context for KS
- State fatality changes Year-over-year state trends
- Browse all U.S. counties Alphabetical county index
- All state profiles 51 state dashboards
- State vs U.S. safety comparison Route-level lookup tool
- National statistics download FARS CSV + findings
- How to read FARS fatality data Methodology primer
- Per-mile vs per-capita road risk Rate denominator explained
- Counties starting with J Letter index including KS counties
Frequently Asked Questions
How many traffic fatalities occurred in Jefferson County, Kansas?
Jefferson County recorded 41 total traffic fatalities across 34 reported crashes over the data period (2016-2023). The most recent year saw 3 fatalities. The county averages approximately 4.6 fatalities per year.
What is the leading cause of road fatalities in Jefferson County?
Cause-code breakdowns are not individually published for Jefferson County in the current FARS release. Statewide data for Kansas may provide additional context.
Is the trend of road fatalities in Jefferson County increasing or decreasing?
The trend in Jefferson County is decreasing. This suggests road safety improvements are having a positive effect in the county.
What is the fatality rate per capita in Jefferson County?
Jefferson County has a fatality rate of 16.4 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 Jefferson County rank for road fatality rate?
According to the National Highway Traffic Safety Administration Fatality Analysis Reporting System, Jefferson County ranks #1,127 of 2,328 U.S. counties by road-fatality rate per 100,000 residents (highest first) and #17 of 36 rated counties in KS, the same sort used on the deadliest-states and county rate listings. Limited data: Jefferson County's per-capita rate rests on just 3 road deaths in the year measured, so a single death more or fewer would move it by a third or more and its rank is not a like-for-like comparison with counties that have more deaths. See /methodology#corpus-placement.
How does Jefferson County compare to the rest of Kansas?
Jefferson County's per-capita rate of 16.4 per 100,000 residents is above the Kansas county average of 15.7. Visit the Kansas state page for the full county-by-county breakdown.
Where does the road fatality data for Jefferson 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.