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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.

59 guides with reviewed service links · Reviewed local guides

Choose a county on the map

Highlighted counties have a reviewed service guide matching this selection. An agency may serve only a city or part of a county.

California58 counties
California county mapChoose a county to open its directory. Use the county search and list for smaller counties.Alameda County: open directoryAlpine County: open directoryAmador County: open directoryButte County: open directoryCalaveras County: open directoryColusa County: open directoryContra Costa County: open directoryDel Norte County: open directoryEl Dorado County: open directoryFresno County: open directoryGlenn County: open directoryHumboldt County: open directoryImperial County: open directoryInyo County: open directoryKern County: open directoryKings County: open directoryLake County: open directoryLassen County: open directoryLos Angeles County: open directoryMadera County: open directoryMarin County: open directoryMariposa County: open directoryMendocino County: open directoryMerced County: open directoryModoc County: open directoryMono County: open directoryMonterey County: open directoryNapa County: open directoryNevada County: open directoryOrange County: open directoryPlacer County: open directoryPlumas County: open directoryRiverside County: open directorySacramento County: open directorySan Benito County: open directorySan Bernardino County: open directorySan Diego County: open directorySan Francisco County: open directorySan Joaquin County: open directorySan Luis Obispo County: open directorySan Mateo County: open directorySanta Barbara County: open directorySanta Clara County: open directorySanta Cruz County: open directoryShasta County: open directorySierra County: open directorySiskiyou County: open directorySolano County: open directorySonoma County: open directoryStanislaus County: open directorySutter County: open directoryTehama County: open directoryTrinity County: open directoryTulare County: open directoryTuolumne County: open directoryVentura County: open directoryYolo County: open directoryYuba County: open directory
County directory Reviewed service guides available
Map for browsing; agency service areas may differ.
Map source

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

Showing 59 guides as a short list. Choose your county or type a city above to see each guide’s instructions, conditions and sources here.

County government · Alameda

Alameda County Community Development Agency — Planning Department

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Alameda unincorporated zoning maps and Planning confirmation (opens in a new tab)
Alameda county map confirmation; urban unincorporated map directory

Disclaimer: Please contact the Planning Department to confirm zoning or if there is any question pertaining to this information by calling the phone number (510) 670-5400.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Butte

Butte County Development Services — Planning map information

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Butte zoning map, overlay maps and Parcel Lookup instructions (opens in a new tab)
Unincorporated overlay-map scope

These links (below) provide access to PDF maps showing overlay zones in the unincorporated portion of Butte County.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Colusa

Colusa County Public Works — GIS

County GIS/planning resource. The map is informational; confirm property jurisdiction, layer accuracy and project requirements with the responsible office.

Colusa countywide and community zoning maps (opens in a new tab)
Explicit zoning-layer activation; not inferred from generic GIS

Interactive GIS Tool (You must turn on the Zoning Layer through the green circle icon at the bottom)

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Contra Costa

Conservation & Development — Building Permits

County building permits and inspections for unincorporated Contra Costa and Clayton, Hercules, Lafayette, Moraga and Orinda. Planning approvals within those cities remain with the city or town.

Contra Costa CCMAP zoning and property research referral (opens in a new tab)

Service area: General Plan and zoning map information for unincorporated Contra Costa County areas only.

CCMAP county zoning and General Plan scope

Note the general plan and zoning information is available for unincorporated County areas only.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · El Dorado

El Dorado County Planning Division

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

El Dorado Planning parcel-data zoning instructions (opens in a new tab)
Parcel Data Lookup search input

You will be asked to supply the parcel's APN or Assessor's Parcel Number. If you do not have the APN, select APN Lookup.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Humboldt

Humboldt County Planning and Building — Web GIS

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Humboldt Web GIS zoning scope and instructions (opens in a new tab)
City zoning remains with the city, although county GIS includes parcel boundaries there

Contact each city for General Plan Land Use and Zoning Designations for city parcels.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Inyo

Inyo 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.

Inyo Information Services public GIS zoning layer (opens in a new tab)
Actual public application layer list; no feature or parcel queries

Planning General Plan Zoning

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Kern

Kern County — Planning map information

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Kern official zone-map directory referral (opens in a new tab)
Kern Public Works zone-map catalogue filename instructions

Zone Maps are named with a leading "Z" (for Zone Map)

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Marin

Community Development Agency

Building & Safety · Planning & Zoning

Marin zoning and Countywide Plan lookup instructions (opens in a new tab)
Official zoning/Countywide Plan search

Vacant parcels are only searchable by Assessor Parcel Number.

Official information checked October 26, 2026 · Details & sources

Official lookup input guidance

Begin typing the full address or Assessor Parcel Number, including leading zeros.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
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 zoning web-map guide (opens in a new tab)
GIS reference limitation

Do not use this map or its associated data to determine property boundaries or to make financial decisions.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Merced

Merced County Community and Economic Development — Planning map information

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Merced Planning community zoning-map directory (opens in a new tab)
Published PDF viewing instructions; file contents/revision dates not inferred

To view the Zoning and General Plan maps side by side in Adobe (reader or pro)

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Modoc

Modoc County Planning

County Planning application information; confirm the applicable property and project jurisdiction.

Examine zoning maps at the Modoc Planning Department (opens in a new tab)
Specific statutory office map-examination access. This does not establish an online viewer, present counter opening, appointment policy, copy availability or price.

Copies shall be maintained and shall be available for examination in the planning department during normal working hours.

Official information checked October 26, 2026 · Details & sources

Statutory zoning-map scope is the unincorporated county; a city map is not substituted for this county service.

A series of maps known as zoning maps shall be utilized to show the designations, locations, and boundaries of each zone district established by this title within the unincorporated areas of Modoc County.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Mono

Mono County Community Development — Planning

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Mono combined General Plan and zoning map information (opens in a new tab)
Explicit combined-plan context; not a generic assumption that all General Plan maps are zoning maps

Mono County is unique in that the General Plan and Zoning Code have been combined into one document.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Monterey

Monterey County Information Technology — 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.

Monterey official unincorporated zoning lookup referral (opens in a new tab)
Zoning lookup scope; distinct from wider parcel reports and city jurisdiction

Zoning Look-Up - Determine zoning for any location in unincorporated Monterey County.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Plumas

Plumas County — GIS map information

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.

Plumas official GIS zoning-map referral (opens in a new tab)
County GIS map portal limitation

Parcel boundary lines should be considered a graphical representation and not in any way a legal survey or engineering document.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Riverside

Building and Safety Department

Riverside County building permit services. Confirm which county or city agency handles your property before applying.

Riverside Building and Safety Find My Zoning instructions (opens in a new tab)
Building and Safety zoning instruction; no parcel-specific allowed-use conclusion

If zoning shows a Specific Plan (SP####) → use the Specific Plans page.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · San Benito

Resource Management Agency

San Benito County building permit services. Confirm which county or city agency handles your property before applying.

San Benito county GIS zoning and land-use information (opens in a new tab)
GIS data coverage does not establish county planning authority in the cities

for the county of San Benito, Cities of Hollister and San Juan Bautista.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · San Bernardino

San Bernardino County Land Use Services — Planning zoning maps

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

San Bernardino unincorporated zoning and overlay maps (opens in a new tab)
County zoning jurisdiction

The County of San Bernardino regulates zoning for all unincorporated areas of the county.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · San Diego

San Diego County Planning and Development Services — zoning information

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Full guide, contact details & sources →
County government · San Mateo

Planning & Building

San Mateo County building permit services. Confirm which county or city agency handles your property before applying.

San Mateo unincorporated zoning GIS instructions (opens in a new tab)
Planning GIS lookup input requirement

You will need the 9-digit APN (0XX-XXX-XX0) for the property. The GIS Database may not be able to find property-specific information by address.

Official information checked October 26, 2026 · Details & sources

Multiple zoning overlays require the applicable ordinance sections

Each “layer” represents a distinct chapter or section in the County’s Zoning Regulations.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Santa Cruz

Community Development & Infrastructure — Unified Permit Center

Santa Cruz County building permit services. Confirm which county or city agency handles your property before applying.

Santa Cruz County Planning GIS zoning instructions (opens in a new tab)
Official zoning display instructions

To see the zoning map, click the box next to "Zoning (text)" and "Zoning Graphic." This will turn on those layers.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Sierra

Sierra County Planning Department

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Sierra Planning paper-map access and current zoning inquiries (opens in a new tab)
Explicit lack of a current countywide online zoning map

Sierra County does not currently have a current, countywide Zoning Map or Zoning Plan as a GIS layer or other "official" digital map.

Official information checked October 26, 2026 · Details & sources

Paper maps require current Planning confirmation

However, these "hard copy" maps do not reflect all subsequent rezones (or zone changes/amendments) since 1973.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Solano

Solano County Resource Management — Planning Services

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Solano unincorporated zoning and GIS Parcel Viewer guide (opens in a new tab)
Actual zoning-specific GIS instruction page

This page acts as a guide for determining your zoning using the GIS Parcel Viewer

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Sutter

Sutter County — Geographic Information Systems

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.

Sutter official Planning GIS zoning lookup referral (opens in a new tab)
Specifically named zoning/general-plan app, distinct from Assessor GIS & Record Maps

Planning GIS Lookup App

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Tehama

Tehama County Planning Department

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Tehama Planning zoning inquiries and public map information (opens in a new tab)
Actual public viewer county layer list; no attributes/features requested

Tax Parcel Zoom to Opacity 100% View in Attribute Table Zip Codes Zoom to Opacity 100% View in Attribute Table Zoning

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Trinity

Trinity County Community Development — Planning Division

County GIS/planning resource. The map is informational; confirm property jurisdiction, layer accuracy and project requirements with the responsible office.

Trinity Planning Hayfork community zoning-map directory (opens in a new tab)
Named Hayfork community resource only, without countywide current zoning-map claim

Hayfork Community Zoning Map (PDF)

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Tuolumne

Community Development — Building Division

Unincorporated Tuolumne County building permits and inspections.

Tuolumne Building and Land Use map referral and limitations (opens in a new tab)
Application explicitly incomplete for Open Space zoning

Parcels may have Open Space zonings that are not yet mapped.

Official information checked October 26, 2026 · Details & sources

Individual amended zoning areas need the ordinance or Planning, not a GIS inference

If your parcel has multiple zoning districts, click the Ordinance link in the Parcel Info popup or contact the Planning Division

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →
County government · Ventura

Ventura County Resource Management — Planning zoning information

Official county Planning map/information function. County zoning applies to its unincorporated jurisdiction; included city maps, federal/state land and third-party reference layers do not transfer planning authority. Map access, inquiry and partial community-map limits remain stated on each service.

Ventura unincorporated zoning lookup and CountyView fallback (opens in a new tab)
Official lookup input

Enter the 9 or 10-digit Assessor Parcel Number (APN) and click on Submit.

Official information checked October 26, 2026 · Details & sources

Check whether the parcel is in the unincorporated county before applying county zoning

turn on the “Cities” layer under the “Layers” tab when using the County View GIS.

Official information checked October 26, 2026 · Details & sources

Full guide, contact details & sources →

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