One Hundred Years of

The Trigger

134 categories of state-level gun law, scored from most restrictive to least. The map of legislation is not the map of outcomes.
Report   05 / 10
Window   1900 — 2024
States   50
Fig. 02 · The landscape
State law restrictiveness index · 50 states + DC

The legislative patchwork state by state.

Gun law is not federal. It is fifty separate experiments running simultaneously, each with different controls, different timelines, and different results. The table below ranks each state by its composite restrictiveness score alongside its firearm homicide rate.

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Key observation

States with the strongest gun laws (California, Massachusetts, New Jersey) consistently show lower firearm homicide rates than states with the weakest (Mississippi, Wyoming, Alaska). The correlation is imperfect — Louisiana has few laws and high homicide; Vermont has moderate laws and low homicide — but the pattern is persistent.

Law-strength scores are synthetic composites derived from Giffords Law Center, Everytown, and RAND rankings. They are directional, not definitive. The underlying Siegel State Firearm Laws Database tracks 134 provisions across 14 categories.