Traffic safety reports for unincorporated King County

King County produces traffic safety reports annually in an ongoing effort to reduce the number and severity of vehicle collisions on county roadways. The reports track collision trends and assess the effectiveness of safety programs utilized by the county. The reports also detail information that is useful in determining how limited safety funds should be used and steps that can be taken to improve the safety of the traveling public.

• 2021 Traffic Safety Report (800KB PDF)
• 2020 Traffic Safety Report (828KB PDF)
• 2019 Traffic Safety Report (818KB PDF)
• 2018 Traffic Safety Report (1MB PDF)
• 2017 Traffic Safety Report (1MB PDF)