In 2020, the U.S. Department of Homeland Security identified white supremacists as the most lethal threat in America. White supremacy is a system rooted in racist policies and ideas that produce and normalize racial inequities. Combatting white supremacism thus requires identification and promotion of antiracist policies, actions, and systemic changes. This study constructs an Antiracist Index comprised of 15 indicators to assess the degree to which American states exhibit antiracist conditions across political, economic, and cultural dimensions. Indices are rank-ordered for all 50 states, from Very High to Very Low scores. Results demonstrate that three indicators—self-defense laws, gun ownership, and support for Black Lives Matter—primarily impact both high and low ranking states. The Antiracism Index thus serves as an exploratory assessment tool which enables state-by-state comparisons, identification of antiracist indicators, and the ability to monitor changes in racism and antiracism moving forward.