County GIS map in Sierra County
The interactive map the county publishes. Parcels, aerial photos, roads, and lakes in one place.
Sierra County parcel map and property search
Sierra County's public map viewer for parcel boundaries and local map layers.
GIS data downloads
- Sierra County GIS and mappingThe mapping office: what maps and data are kept, how to get them, and who to ask.
Sierra County
- California GIS data downloadsDownload California's statewide GIS data, such as roads, boundaries, imagery and elevation. It has no statewide property lines.
Statewide What is this?
Aerial imagery
- Sanborn Fire Insurance MapsDigitized Sanborn fire insurance maps showing building footprints, materials and uses for American towns and cities, widely used in property history and enviro…
National What is this?
- USDA NAIP Imagery HubFind and download USDA's leaf-on aerial photography for the contiguous United States. Check coverage and acquisition dates for the area you need.
National What is this?
Who to ask
- Sierra County GISSierra County Assessor's Office keeps the maps and GIS for Sierra County.Eric Jackson, Assessor
- Phone
- 530-289-3283
- assessor@sierracounty.ca.gov
- Address
- 100 Courthouse Square #200 Downieville, CA 95936
- Website
- Visit website
Guide: A parcel map is not a survey
About county gis map
County GIS viewers show mapped parcels, aerial photos, roads, water, and other local layers. Start with the county map or parcel viewer for the place you are researching.