Contra Costa County
County seat: MartinezCentral CaliforniaCCS Zone 3
Interactive Map
Assessor's Office
Property assessment data, parcel information, and assessor maps.
Recorder's Office
Recorded documents including deeds, maps, easements, and CC&Rs.
GIS / Parcel Viewer
Interactive online map with parcel boundaries, aerial imagery, and data layers.
CCMAP provides parcel data, assessor maps, aerial images
County Surveyor
Records of Survey, Corner Records, and survey-related filings.