This collection contains records of cases heard in the County Court for Sonoma County, California, between 1850 and 1880. Includes record of civil and criminal cases heard in County Court, daily records of County Court operations, and records of cases on appeal.

This collection contains reporters' transcripts and related papers for cases brought before the Third District Court of Appeal between 1909 and 1922.

This collection contains the Geothermal Research Information and Planning Services (GRIPS) records records include meeting minutes and related files of the Commission on Geothermal Issues Impacting Sonoma County. GRIPS was a California Joint Power Agency (Mendocino, Lake, Sonoma, Napa counties).

This collection contains Planning Agency official records. Includes records of the Planning Commission and the Board of Zoning Adjustments.

This collection contains records of the Sonoma County Civil Service Commission. Includes correspondence, minutes of meetings, rule books and other related materials.

Collection contains Redwood Township Justice Court records, including matters relating to Fish and Game. Records are variously titled as "Criminal Docket" or "Criminal Justice Docket." Includes the criminal justice docket for the Redwood Township Justice Court and its successor, the Redwood Judicial District Court, in Sonoma County, California between 1937 and 1964 and Small Claims Court docket for the Redwood Judicial District Court, in Sonoma County, California, between 1960 and 1963.

This collection contains records that provide details on the operations of the Santa Rosa Justice Court and its successor, the Santa Rosa Judicial District Court. Includes the justice docket (i.e., criminal justice docket) for the court between 1906-1955 (titles of volumes in the justice docket vary).

This collection contains minute books for civil and criminal cases brought before the Santa Rosa Municipal Court (formally, California. Municipal Court for the Santa Rosa Judicial District).

This collection contains registers and minutes of criminal cases brought before the Court of Sessions.

This collection contains records reflect various aspects of the operations of the Sonoma County District Courts. These include: registers of actions in civil and criminal cases heard in the District Court, and fees paid; liens for state and county taxes; lists of defendents and plaintiffs; minutes of each court session, court actions, and rules of the court.