58 counties
California GIS, zoning, parcel and land-research resources
Start with California county maps and records, identify every authority that controls the land, and carry each verified finding, claim and open question into one Property Review.
58 county research doors
Every California county has a page connecting official county-office discovery with statewide water, septic, wildfire, flood, coastal and terrain resources.
Authority must be confirmed
County geography alone does not establish permitting authority. Cities, the Coastal Commission, tribes and state or federal agencies may control separate questions.
Water and wastewater are local
Use state well, water-right and onsite-wastewater resources, then confirm the actual county, city, district or provider requirements for the parcel.
Hazards change feasibility
Screen wildfire, flood, slope, landslide and seismic conditions, then obtain the property-specific studies and agency determinations the proposed use requires.
California county research directory
Each page connects official county-office discovery and statewide research resources to a county-prefilled Property Review. A page does not imply automated parcel coverage.
Alameda County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Alpine County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Amador County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Butte County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Calaveras County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Colusa County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Contra Costa County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Del Norte County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
El Dorado County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Fresno County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Glenn County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Humboldt County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Imperial County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Inyo County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Kern County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Kings County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Lake County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Lassen County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Los Angeles County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Madera County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Marin County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Mariposa County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Mendocino County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Merced County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Modoc County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Mono County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Monterey County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Napa County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Nevada County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Orange County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Placer County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Plumas County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Riverside County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Sacramento County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
San Benito County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
San Bernardino County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
San Diego County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
San Francisco County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
San Joaquin County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
San Luis Obispo County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
San Mateo County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Santa Barbara County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Santa Clara County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Santa Cruz County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Shasta County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Sierra County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Siskiyou County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Solano County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Sonoma County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Stanislaus County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Sutter County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Tehama County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Trinity County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Tulare County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Tuolumne County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Ventura County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Yolo County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
Yuba County
Planning, parcel, records, water, wastewater, coastal, wildfire, flood and terrain paths
California coverage is deliberately separated from research access
Humboldt is currently the only California county accepted for LandGauge assisted parcel identity and acreage lookup. Kern remains directory-only. The other county pages provide official manual research paths and do not claim statewide automated parcel coverage.