The Association of State and Territorial Health Officials is a nonprofit organization committed to supporting the work of state and territorial public health officials and furthering the development and excellence of public health policy nationwide.

ASTHO’s membership is comprised of 59 chief health officials from each of the 50 states, Washington, D.C., five U.S. territories, and three Freely Associated States. ASTHO also supports peer communities of state and territorial health leaders and senior executives in health departments who work with the over 100,000 public health professionals employed at state and territorial public health agencies.