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Look up zoning maps in California

Official zoning and land-use maps, map directories, instructions and purpose-labelled zoning inquiry channels. County/city scope, historical or partial maps and offline access are identified in each entry.

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In California, 58 county departments and 1 city government publish 60 official links for this service, 3 of them online. Reviewed requirements cover availability notices (44) and processing time (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 · Napa

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California58 counties

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U.S. Census boundaries via U.S. Atlas · 2017 edition, simplified for display.

County government · Napa

Planning, Building & Environmental Services

Building & Safety · Planning & Zoning

Napa Planning zoning-map directoryOfficial instructions

PBES Planning publishes the County of Napa zoning-map PDF link. This is the map-directory entry; the file's revision history and a parcel's current zoning are not independently established.

Source checked October 26, 2026

Napa official map information · Napa 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

Napa County Zoning Map (PDF)

Saved evidence: da44741d3b1cbaed · Agent source review

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Look up zoning maps in California

Planning, Building & Environmental Services

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