CountyCaseField Ledger contour markCountyCase
Mercer County, Ohio context mapThe county is outlined and labeled within OH using 2025 Census TIGER geometry.Mercer County
Census TIGER/Line 2025 county geometry.

Crash severity

10.4

Share of reported crashes that were fatal: 10.4 per 1,000, 2021-2025

n=38 · window 2021-2025

well above well above the state rate

3.1%

Suspected-serious share of the source-defined reported-crash injury universe, 2021-2025

n=115 · window 2021-2025

well above possibly well above the state share

95% range: 2.6%–3.8%

Keep in view: The share of reported crashes that were fatal does not measure a county's danger, a traveler's risk, or the cause of any crash.

Fatal-crash timing

9.4%

Share of FARS fatal crashes that were night, 2021-2024

n=3 · window 2021-2024

well below well below the state share

37.5%

Share of FARS fatal crashes that were weekend, 2021-2024

n=12 · window 2021-2024

above somewhat above the state share

95% range: 22.9%–54.7%
6.2%

Share of FARS fatal crashes that were impaired involved, 2021-2024

n=2 · window 2021-2024

well below well below the state share

Keep in view: These time and involvement shares describe fatal crashes in FARS and do not measure an individual's risk or establish why a crash occurred.

Population context

185.5

Annual reported crashes per 10,000 residents (2024 ACS population), 2025

n=788 · window 2025

below below the state rate

172.1

Five-year annualized reported crashes per 10,000 residents (2024 ACS population), 2021-2025

n=3655 · window 2021-2025

below below the state rate

Keep in view: Crashes per resident use population as context, not miles traveled, and do not measure an individual resident's driving risk.

Truck-crash context

1.72

Truck-crash share relative to overall reported-crash share, 2021-2023

n=79 · window 2021-2023

well above well above the state level

Keep in view: This location quotient compares shares of reported crashes and does not measure truck-driver fault, carrier safety, or roadway danger.

Source notices