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By knowing the latest Dayton and Montgomery County car accident statistics, you can better understand the top causes of auto accidents in the area, where and when they happen, and how often. That understanding can be an essential part of recovering compensation for your damages.
At Kisling, Nestico & Redick, we have compiled the most recent full-year car accident data available for Dayton and Montgomery County. Unless noted otherwise, every figure on this page is for calendar year 2025 and comes from the Ohio Traffic Safety Office’s 2025 Montgomery County traffic crash datasheet, published in April 2026 by the Ohio Department of Public Safety from the Ohio State Highway Patrol’s OSTATS crash dashboard. Statewide comparisons come from the Highway Patrol’s year-end crash summary.
If you need legal advice after a collision, contact our Dayton car accident lawyers for a free consultation. Call (937) 427-4048 to get started.
Dayton Car Accident Numbers (Latest OSHP Data)
Montgomery County recorded 12,014 traffic crashes in 2025, up from 11,505 in 2024 and 11,226 in 2023 (Ohio Traffic Safety Office, 2025 Montgomery County datasheet). That works out to about 33 crashes a day across the county. The Highway Patrol’s year-end summary lists Montgomery County among the Ohio counties with the most crashes, alongside Hamilton, Franklin, Cuyahoga, and Lucas counties. (The Patrol’s preliminary year-end count for Montgomery County was 11,790; the April 2026 datasheet carries the final figure.) Montgomery County appears on every recent list of Ohio’s most dangerous counties for car accidents.
Three years of Montgomery County crashes by severity, from the same source:
- Fatal crashes: 58 in 2023, 60 in 2024, 54 in 2025
- Serious injury crashes: 290 in 2023, 282 in 2024, 311 in 2025
- Minor injury crashes: 1,940 in 2023, 1,942 in 2024, 2,064 in 2025
- Possible injury crashes: 1,163 in 2023, 1,207 in 2024, 1,218 in 2025
- Property damage only: 7,775 in 2023, 8,014 in 2024, 8,367 in 2025
Fatal crashes fell by about 10 percent in 2025 while serious injury crashes rose by about 10 percent, and every other category grew.
Montgomery County Car Accidents by Severity
Not every car accident ends in catastrophic injuries, but a meaningful share do. Of the 12,014 crashes in Montgomery County in 2025 (Ohio Traffic Safety Office):
- 54 fatal crashes, less than 1 percent of the total
- 311 crashes with a suspected serious injury
- 2,064 crashes with a minor injury
- 1,218 crashes with a possible injury, where someone reported pain but no visible injury
- 8,367 property damage only crashes, about 70 percent of the total
In other words, roughly 3 in 10 Montgomery County crashes involve a reported injury. Many of the “possible injury” crashes turn out to involve whiplash, concussions, and back injuries that are diagnosed days later.
Most Dangerous Roads and Intersections in Dayton
The Ohio Traffic Safety Office lists the three routes with the most crashes in Montgomery County in 2025:
- I-75: 1,182 crashes. The top road in the county by crash count by a wide margin, running north-south through downtown Dayton, Moraine, Vandalia, and past the airport, with the I-75/I-70 interchange and the downtown stretch between U.S. 35 and Route 4 among its most congested segments.
- State Route 48: 690 crashes. SR-48 is Main Street through Dayton and Far Hills Avenue through Oakwood, Kettering, and Centerville, a corridor of signals, driveways, and left turns from one end of the county to the other.
- State Route 725: 400 crashes. The east-west arterial through Miamisburg, the Dayton Mall area, and Centerville, with heavy retail traffic and frequent rear-end and intersection crashes.
The county datasheet does not publish counts for other routes, so the corridors below are described as high-volume roads without figures. They are the ones we see most often in our Dayton cases:
- I-70, which carries the county’s heaviest truck traffic east and west and meets I-75 near Vandalia.
- U.S. 35, the limited-access route through the middle of Dayton, where closely spaced ramps feed downtown traffic toward Beavercreek and the I-675 interchange.
- I-675, the outer loop connecting Miamisburg, Kettering, Beavercreek, and Fairborn, with its junctions at U.S. 35 and I-75.
- Salem Avenue, a wide arterial through northwest Dayton with frequent angle and left-turn crashes at its signalized intersections.
- Gettysburg Avenue, the north-south connector on the west side, where speed and red-light running are recurring factors.
- Wayne Avenue, dense with businesses, bus stops, and cross streets between downtown and Kettering.
Our page on dangerous roads in Ohio covers the statewide list, and our interactive Ohio traffic data map lets you look up crash history near a specific location.
