COUNTY FATALITY DATA
Mason County: higher-rate fatality band
Mason County (IL) is in the higher per-capita third: 55.9/100k (#51 of 2,328). Data period: 2017-2023.
- 27
- Total Fatalities (2017-2023)
- 7
- Latest Year Deaths
- Near average count
- 55.9
- Per 100k Residents
- Well above average
- Stable
- Trend
Higher per-capita fatality band
Mason County ranks #51 of 2,328 by deaths per 100,000 residents (55.9/100k) - top-third rate among rated U.S. counties.
Mason County in the higher-rate third
According to NHTSA FARS, Mason County sits in the higher-rate third at 55.9 per 100k (#51 of 2,328), #1 of 81 in IL.
- #51 of 2,328
- higher-rate third
- #2,102 of 3,137
- smaller-book third
- #1 of 81
- in IL by rate
- Stable
- fatality trend
NHTSA county milepost
Milepost MASON-125 · Mason 55.9/100k · #51 of 2,328
Mason County · 55.9/100k · stable
- YOY 55.9/100k
- RATE #51 of 2,328
- RANK 27 book
- BOOK Stable
- TREND 23 crash
- CAUSE +194.0% vs IL
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 → · Illinois state profile →
How does Mason County compare?
2023 road deaths per 100,000 residents. Choose any comparison from the menu.
Mason County is 2.9× deadlier 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 Illinois, Mason County ranks 1 for per-capita risk, above the state's own per-capita average of 19.0 per 100,000 -- nationally, this rate puts it among the most dangerous one in ten U.S. counties by that per-capita measure. The gap between Mason County's rate and the state average is 36.9 per 100,000. Its closest per-capita peer statewide is Pike County, at 55.8 per 100,000 (a difference of 0.1). Its peer counties, highest to lowest per 100,000 residents: Pike County (55.8), Cumberland County (48.7), Montgomery County (47.0), Lawrence County (40.5), Saline County (39.3), Richland County (38.7), Iroquois County (38.3), Bond County (36.5), Union County (36.0), Ogle County (31.2), Jefferson County (30.3), Ford County (30.2), Stephenson County (30.2), Jo Daviess County (27.6).
Mason County's rate vs. every rated U.S. county
Deaths per 100,000 residents -- counties with 10,000+ people, NHTSA FARS over Census population
56 Higher than most a lower per-capita rate than 2% 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 Mason County
Contextual links from this profile to rankings, tools, research, and peer geographies on PlainRoadSafety.
- Mason County vs other counties by ratePer-100k fatality comparison
- Illinois statewide fatality dataAll counties in this state
- Deadliest states for drivingContext for IL
- 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 IL counties
Frequently Asked Questions
How many traffic fatalities occurred in Mason County, Illinois?
Mason County recorded 27 total traffic fatalities across 23 reported crashes over the data period (2017-2023). The most recent year saw 7 fatalities. The county averages approximately 3.0 fatalities per year.
What is the leading cause of road fatalities in Mason County?
Cause-code breakdowns are not individually published for Mason County in the current FARS release. Statewide data for Illinois may provide additional context.
Is the trend of road fatalities in Mason County increasing or decreasing?
The trend in Mason County is stable. Fatality counts have remained relatively consistent over the data period.
What is the fatality rate per capita in Mason County?
Mason County has a fatality rate of 55.9 per 100,000 residents, which puts it among the most dangerous one in ten U.S. counties by that per-capita measure among the 3,137 U.S. counties in this dataset.
Where does Mason County rank for road fatality rate?
According to the National Highway Traffic Safety Administration Fatality Analysis Reporting System, Mason County ranks #51 of 2,328 U.S. counties by road-fatality rate per 100,000 residents (highest first) and #1 of 81 rated counties in IL, the same sort used on the deadliest-states and county rate listings. See /methodology#corpus-placement.
How does Mason County compare to the rest of Illinois?
Mason County's per-capita rate of 55.9 per 100,000 residents is above the Illinois county average of 19.0. Visit the Illinois state page for the full county-by-county breakdown.
Where does the road fatality data for Mason 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 2017-2023 and includes all crashes resulting in at least one fatality within 30 days.