Health care in California and in the nation requires an adequate supply of well-prepared professional nurses. Complex demographic, economic, and political factors influence changes in the demand for nurses. The Healthforce Center has collaborated with the Hospital Association of Southern California and the California Institute for Nursing and Health Care to conduct surveys of California nurse employers since 2010. These data are analyzed in conjunction with other data on the education and supply of RNs to track the nursing labor market in the state. Results of this work has informed policymakers, educators, and employers and helped them shape programs and policies to ensure a stable nursing labor market. The ongoing surveys of California RNs complement years of research conducted by Healthforce Center researchers on the factors that affect demand for nurses and other health workers in California.