Sierra County, California · Property and assessment

View parcel maps in Sierra County

Assessor parcel maps, GIS parcel viewers, recorded parcel-map catalogues and office map-access instructions. Each entry identifies the map type; assessment and GIS maps do not establish legal boundaries.

1 provider · 1 official link · sources checked October 26, 2026

In Sierra County, 1 county department publishes 1 official link for this service.

These are the Sierra County providers with a reviewed service link for this task. Other offices may also help, and a provider may serve only part of the county: check each service area. Fees and forms stay on each office’s guide, where their sources are cited.

County government

Assessor

Sierra Assessor parcel-map review and copiesOfficial instructions

The Assessor maintains over 350 assessment parcel maps and offers review/purchase in Downieville or via ParcelQuest. Assessment maps and the Planning Department's annotated old zoning documents are distinct.

Source & saved evidence

Sierra official map information · Sierra official parcel map information candidate (opens in a new tab)

Official county map/provider evidence: exact named map, actual layer list, access instructions or limitation

These maps are available for review and may be purchased at the Assessor's Office in Downieville or from Parcel Quest.

Agent source review: October 26, 2026 · Snapshot aa8b6897282c2413

Phone: 530-289-3283

Contacts & sources

View parcel maps in Sierra County

Assessor

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