Sonoma Valley Hospital was founded in 1946 as a non-profit district hospital with a publicly elected five-member Board of Directors. Directors serve four-year terms, with elections taking place during general elections for local, state or national offices.

As part of the Sonoma Valley Health Care District, the hospital is supported primarily by revenues from services. This is augmented by taxpayer support in the form of a parcel tax, charitable bequests, and fundraising activities. The Sonoma Valley Hospital Foundation and the Hospital Auxiliary play integral roles in these fundraising efforts.

The District Board of Directors is currently comprised of:
Richard F. Kirk, M.D. (Chair)
Mike Smith (1st Vice President)
Arnold Riebli (2nd Vice President)
Michael J. Nugent (Treasurer)
Bill Boerum (Secretary)