In recent years, California has dramatically restructured its correctional system through a policy called "Realignment," which shifts responsibility over thousands of offenders from the state to its counties. To help manage this influx, the state allocated US$2 billion through 2014 to the counties. Counties have used these funds in different ways. Some have adhered to Realignment's intended focus on evidence-based programming, whereas others have focused on expanding enforcement and custodial capacities. I analyze first-year (2011-2012) county Realignment budgets to identify political, economic, and criminal justice factors that explain different spending emphases. Using quantitative and comparative methods, I find that counties focus on enforcement spending because of pressing local needs related to crime and justice, and counties focus on services spending when sheriffs-key figures in Realignment administrationare politically secure. These findings have practical implications for correctional policies in California, and for other states that seek to reduce their prison populations.