A team of PISC Scholars assessed rates of firearm mortality at the county level across the United States over two five year periods. The study, led by Michelle Degli Esposti and the team of Doug Wiebe, Jason Gravel, Elinore Kaufman, Kit Delgado, and Terry Richmond, makes a novel contribution to the literature which previously lacked in terms of characterizing firearm mortality over space and time. These findings of geographic hotspots and high/low “outlier” counties can inform targeted prevention efforts and local policy responses.