What the Data Shows

Mason County, Washington recorded 91 total road fatalities across 86 reported crashes during the 2016-2023 reporting window, according to NHTSA's Fatality Analysis Reporting System. The most recent year covered by the data logged 20 deaths on county roads, and the annual average works out to approximately 10.1 fatalities per year. Adjusted for population, the fatality rate is 14.8 per 100,000 residents, which places it close to the national middle by that per-capita measure among the 3,137 U.S. counties in this dataset.

Despite a comparatively active crash history (86 recorded crashes), individual cause-code breakdowns are not published for Mason County in the current FARS release, so readers looking for contributing-factor data should use the Washington state page, which aggregates county-level case files into statewide totals. Either way, the underlying records are drawn from a census of fatal crashes, not a statistical sample, so the counts are actual deaths rather than estimates.

The directional trend for Mason County is increasing, which means annual fatalities have risen across the reporting period and may warrant closer attention from local transportation and enforcement agencies. Residents, insurers, and policy analysts can use this baseline alongside population density, highway mile data, and rural-versus-urban road mix to judge whether Mason County's 91-death total is proportionate to its exposure. All numbers are for research and informational use only.