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View parcel maps in California

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.

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In California, 57 county departments and 1 public authority publish 59 official links for this service. Reviewed requirements cover availability notices (15) and payment methods (1). 56 counties have a page for it below.

Before you start · 2 things to check
  • Start with the jurisdiction of the property. County permit offices may serve only unincorporated areas.
  • Use the official map and confirm project requirements with the planning or building office.

1 guide with reviewed service links · Mendocino

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County government · Mendocino

Mendocino County Information Services — GIS

Official geographic information and map-access function. A county association identifies the published provider/referral context; it does not assert legal map boundaries, county planning authority inside cities, or complete coverage of every layer.

Mendocino GIS APN and parcel-map guide (opens in a new tab)Official instructions

Information Services' map guide explains eight-digit APN/address searching and the Assessor's Parcel Number layer. This is GIS parcel-map information; the county expressly rejects its use for determining property boundaries or financial decisions.

Published APN format; no parcel queried

The APN must be eight digits (e.g. 11122203). If it exceeds this length you may need to remove the last 2 numbers.

Official information checked October 26, 2026 · Details & sources

Source checked October 26, 2026

Mendocino official map information · Mendocino official zoning map information candidate (opens in a new tab)

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

The purpose of this map is to provide information about assessors parcel numbers, zoning districts and general plan classifications and the relationships between them.

Saved evidence: bb42c15cd3b9c2ac · Agent source review

Full guide, contact details & sources →

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