COUNTY FATALITY DATA
Jefferson County: larger FARS fatality book
Jefferson County (MO) holds a larger FARS book (289, #205 of 3,137) with 24 latest-year deaths.
- 289
- Total Fatalities (2016-2023)
- 24
- Latest Year Deaths
- High count
- 10.4
- Per 100k Residents
- Below average
- Increasing
- Trend
Larger fatality book
Jefferson County ranks #205 of 3,137 by total FARS fatalities (289 across 2016-2023) - top-third book size.
Jefferson County in the larger-book third
According to NHTSA FARS, Jefferson County carries a top-third fatality book (289 across 2016-2023, #205 of 3,137) at 10.4/100k.
- #1,725 of 2,328
- lower-rate third
- #205 of 3,137
- larger-book third
- #69 of 84
- in MO by rate
- Increasing
- fatality trend
Highway fatality milepost
Milepost JEFFERSON-99 · Jefferson 10.4/100k · #1,725 of 2,328
Jefferson County · 10.4/100k · increasing
- VOL 10.4/100k
- AVG #1,725 of 2,328
- YOY 289 book
- RATE Increasing
- RANK 269 crash
- BOOK -52.3% vs MO
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 → · Missouri state profile →
How does Jefferson County compare?
2023 road deaths per 100,000 residents. Choose any comparison from the menu.
Jefferson County is 52% 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 Missouri, Jefferson County ranks 15 for per-capita risk, below the state's own per-capita average of 21.8 per 100,000 -- nationally, this rate leaves it safer than most U.S. counties by that per-capita measure. The gap between Jefferson County's rate and the state average is 11.4 per 100,000. Its closest per-capita peer statewide is Lafayette County, at 30.1 per 100,000 (a difference of 19.7). Its peer counties, highest to lowest per 100,000 residents: Ripley County (74.0), Pemiscot County (54.7), Morgan County (54.6), Barry County (53.9), Lawrence County (51.5), Douglas County (49.1), Ralls County (47.7), Bates County (43.1), New Madrid County (38.9), Bollinger County (37.9), Saline County (34.7), Stone County (33.7), Wright County (30.9), Lafayette County (30.1).
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
10 Lower than most a lower per-capita rate than 74% 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
- Missouri statewide fatality data All counties in this state
- Deadliest states for driving Context for MO
- 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 MO counties
Frequently Asked Questions
How many traffic fatalities occurred in Jefferson County, Missouri?
Jefferson County recorded 289 total traffic fatalities across 269 reported crashes over the data period (2016-2023). The most recent year saw 24 fatalities. The county averages approximately 32.1 fatalities per year.
What is the leading cause of road fatalities in Jefferson County?
Despite a comparatively active crash history (269 recorded crashes), individual cause-code breakdowns are not published for Jefferson County in the current FARS release. Statewide data for Missouri may provide additional context.
Is the trend of road fatalities in Jefferson County increasing or decreasing?
The trend in Jefferson County is increasing. This indicates that traffic fatalities have risen over the data period, warranting attention to road safety initiatives.
What is the fatality rate per capita in Jefferson County?
Jefferson County has a fatality rate of 10.4 per 100,000 residents, which leaves it safer than most U.S. counties 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 #1,725 of 2,328 U.S. counties by road-fatality rate per 100,000 residents (highest first) and #69 of 84 rated counties in MO, the same sort used on the deadliest-states and county rate listings. See /methodology#corpus-placement.
How does Jefferson County compare to the rest of Missouri?
Jefferson County's per-capita rate of 10.4 per 100,000 residents is below the Missouri county average of 21.8. Visit the Missouri 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.