California’s 2011 Public Safety Realignment has received considerable attention nationally as a watershed moment in the movement to downsize prisons. The present study leverages data collected in 12 California counties to provide the most comprehensive examination to date of how Realignment has impacted recidivism for the key offender groups targeted in the reform. We find small to modest increases in rearrest in three of four groups targeted in the reform. The fourth group experienced moderate decreases in rearrest. Moreover, all groups experienced decreases in reconviction, which gives credence to the idea that a significant reprioritization of who should be in prison can positively affect public safety. These findings point to the complex ways that reforms like Realignment can affect custodial and community-based supervision systems by changing incentives for law enforcement and the people who supervise offenders. Our conclusions discuss the implications for other states and systems considering similar reforms.