California law severely limits local school districts' revenue-raising authority compared to most other states, which allow districts to raise local property taxes to support schools. School districts are primarily funded by revenues allocated by the state through complex formulas established decades ago. In California, school districts have limited ways to raise additional funds--through parcel taxes, a seldom-used sales tax, and private donations typically generated by contributions to local education foundations or raised by parent organizations. Parcel taxes are one of the few ways local school districts are able to raise taxes to supplement the revenues they receive from the state and other sources. Most school districts in the state have not taken advantage of parcel taxes as a revenue-raising option. This report presents an overview of parcel taxes in California school districts from 1983-2012.