COUNTY FATALITY DATA
Mercer County, Ohio
Road fatality data for Mercer County (OH). Data period: 2016-2023.
- 53
- Total Fatalities (2016-2023)
- 4
- Latest Year Deaths
- Low count
- 9.4
- Per 100k Residents
- Well below average
- Increasing
- Trend
Rising fatality trend
Mercer County's FARS series is labeled Increasing with 4 deaths in the latest year.
Mercer County on a rising FARS trend
According to the National Highway Traffic Safety Administration Fatality Analysis Reporting System, Mercer County ranks #1,826 of 2,328 U.S. counties by road-fatality rate per 100,000 residents (highest first) and #62 of 86 rated counties in OH. Mercer County's fatality rate of 9.4 per 100,000 residents leaves it safer than most U.S. counties by that per-capita measure.
- #1,826 of 2,328
- lower-rate third
- #1,338 of 3,137
- by total FARS fatalities
- #62 of 86
- in OH by rate
- Increasing
- fatality trend
NHTSA county milepost
Milepost MERCER-107 · Mercer 9.4/100k · #1,826 of 2,328
Mercer County · 9.4/100k · increasing
- POST 9.4/100k
- BAND #1,826 of 2,328
- VOL 53 book
- AVG Increasing
- YOY 51 crash
- RATE -34.0% vs OH
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 → · Ohio state profile →
How does Mercer County compare?
2023 road deaths per 100,000 residents. Choose any comparison from the menu.
Mercer County is 34% 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 Ohio, Mercer County ranks 15 for per-capita risk, below the state's own per-capita average of 14.2 per 100,000 -- nationally, this rate leaves it safer than most U.S. counties by that per-capita measure. The gap between Mercer County's rate and the state average is 4.8 per 100,000. Its closest per-capita peer statewide is Morgan County, at 22.0 per 100,000 (a difference of 12.6). Its peer counties, highest to lowest per 100,000 residents: Fayette County (38.2), Harrison County (35.3), Noble County (34.9), Preble County (34.5), Pike County (29.6), Gallia County (27.6), Guernsey County (26.3), Vinton County (24.1), Fulton County (23.8), Clinton County (23.8), Hardin County (23.1), Madison County (22.4), Carroll County (22.4), Morgan County (22.0).
Mercer County's rate vs. every rated U.S. county
Deaths per 100,000 residents -- counties with 10,000+ people, NHTSA FARS over Census population
9 Among the safer counties a lower per-capita rate than 78% 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 Mercer County
Contextual links from this profile to rankings, tools, research, and peer geographies on PlainRoadSafety.
- Mercer County vs other counties by ratePer-100k fatality comparison
- Ohio statewide fatality dataAll counties in this state
- Deadliest states for drivingContext for OH
- 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 OH counties
Frequently Asked Questions
How many traffic fatalities occurred in Mercer County, Ohio?
Mercer County recorded 53 total traffic fatalities across 51 reported crashes over the data period (2016-2023). The most recent year saw 4 fatalities. The county averages approximately 5.9 fatalities per year.
What is the leading cause of road fatalities in Mercer County?
Despite a comparatively active crash history (51 recorded crashes), individual cause-code breakdowns are not published for Mercer County in the current FARS release. Statewide data for Ohio may provide additional context.
Is the trend of road fatalities in Mercer County increasing or decreasing?
The trend in Mercer 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 Mercer County?
Mercer County has a fatality rate of 9.4 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 Mercer County rank for road fatality rate?
According to the National Highway Traffic Safety Administration Fatality Analysis Reporting System, Mercer County ranks #1,826 of 2,328 U.S. counties by road-fatality rate per 100,000 residents (highest first) and #62 of 86 rated counties in OH, the same sort used on the deadliest-states and county rate listings. See /methodology#corpus-placement.
How does Mercer County compare to the rest of Ohio?
Mercer County's per-capita rate of 9.4 per 100,000 residents is below the Ohio county average of 14.2. Visit the Ohio state page for the full county-by-county breakdown.
Where does the road fatality data for Mercer 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.