City districts

Community Improvement districts

Community Services districts

County Sub districts

Elementary School districts

Fire districts

Healthcare districts

Park & Recreation districts

Police districts

School districts

Secondary School districts

Sewer / Sanitary districts

Unified School districts

Water / Natural Resources districts

Elected Offices

Position title Next election date Filing window
Contra Costa County Assessor Jun 05, 2018 Feb 12, 2018 - Mar 09, 2018
Contra Costa County Auditor-Controller Jun 05, 2018 Feb 12, 2018 - Mar 09, 2018
Contra Costa County Clerk-Recorder Jun 05, 2018 Feb 12, 2018 - Mar 09, 2018
Contra Costa County District Attorney Jun 05, 2018 Feb 12, 2018 - Mar 09, 2018
Contra Costa County Sheriff-Coroner Jun 05, 2018 Feb 12, 2018 - Mar 09, 2018
Contra Costa County Treasurer-Tax Collector Jun 05, 2018 Feb 12, 2018 - Mar 09, 2018