Land Records Logo

Land Records

Alameda County, CA Parcels & GIS Data

Alameda County, CA parcel data: 489,651 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Alameda County, California parcel data covering 489,651 property records.

This page documents parcel-level coverage for Alameda County, California. Each parcel record carries its boundary polygon (GIS geometry) along with attributes such as the parcel ID/APN, owner name and mailing address, situs (property) address, assessed land and improvement values, acreage, land-use and zoning codes, year built, and most recent sale price and date. Exact fill rates for Alameda County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete Alameda County property dataset.

Alameda County is located in the U.S. state of California. As of the 2020 census, the population was 1,682,353, making it the 7th-most populous county in the state and 21st most populous nationally. The county seat is Oakland.

FIPS 06001

Official county website: http://www.acgov.org

The FIPS code for Alameda County is 06001.

ExploreBuyDownload Alameda County data
San FranciscoSan MateoSanta ClaraContra CostaSan JoaquinStanislausAlameda
Hosted Web API$200/mo

Attribute coverage

Alameda County contains 489,651 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%489,651
parcelid100%489,651
parcelid2100%489,651
ogparcelid100%489,651
ogparcelid2100%489,651
parentid<0.1%0
stackid<0.1%0
geoid100%489,651
statefp100%489,651
countyfp100%489,651
countyname100%489,651
cousubfp100%489,651
cousubname100%489,651
tractce100%489,651
tractname100%489,651
taxacctnum<0.1%0
taxyear<0.1%0
taxdistrict<0.1%0
usecode99.9%489,357
usedesc<0.1%0
zoningcode9.0%44,216
zoningdesc9.0%44,214
numbldgs92.1%451,212
numunits92.1%451,212
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue92.3%451,759
landvalue94.2%461,321
agvalue50.5%247,247
totalvalue93.7%459,026
taxacres<0.1%0
calcarea100%489,651
saleamt<0.1%0
saledate<0.1%0
ownertype<0.1%0
ownername<0.1%0
owneraddr<0.1%0
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr100%489,617
parcelcity100%489,597
parcelstate100%489,651
parcelzip100%489,650
legaldesc<0.1%0
township100%489,646
section100%489,646
qtrsection100%489,646
range100%489,646
plssdesc100%489,646
book100%489,651
page100%489,651
block83.5%408,924
lot10.7%52,349
parceltype0.7%3,250
accesstype0.7%3,250
iucnclass0.1%503
placename8.5%41,774
placetype8.4%41,002
firmid100%489,651
firmdate100%489,651
fldzone100%489,651
zonesubty98.0%479,767
staticbfe1.1%5,271
elevmin8.8%43,107
elevmax8.8%43,107
elevavg8.8%43,107
fireplaces<0.1%0
heating<0.1%0
heatfuel<0.1%0
cooling<0.1%0
foundation<0.1%0
roofcover<0.1%0
siding<0.1%0
bldgtype<0.1%0
naicscode8.5%41,774
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated9.0%44,216
centroidx100%489,651
centroidy100%489,651
surfpointx100%489,651
surfpointy100%489,651
geom100%489,651
extras100%489,651
ownerlist<0.1%0
placefp99.3%486,266
zoningurl<0.1%0

Schema mapping

How source columns from the acquired Alameda County GIS layers map into the harmonized entity schemas and assemble into the published parcel table, alongside supplemented fields (elevation, flood zone) and deterministic columns.

Schema mapping — Alameda County, California (06001) 1 entity · most recent acquisition per entity · generated 2026-08-30 direct column transformed (expression) geometry extras json supplemented determined ALL ENTITIES → FINAL PARCEL SCHEMA Harmonized entity columns assemble into publish.parcel_layer — matched by column name. Supplemented fields show their fill rate in this county. SOURCE COLUMNS HARMONIZED ENTITIES PUBLISH.PARCEL_LAYER PARCEL apn sortparcel usecode imps land totalnetvalue situsaddress situscity situszip book page parcel sub_parcel geom 24 cols ⇢ parcelid parcelid2 usecode imprvalue landvalue totalvalue parceladdr parcelcity parcelzip book page block lot geom extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 9.0% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 8.8% elevmin 8.8% elevmax 8.8% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 98.0% zonesubty 1.1% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 92.1% numbldgs 92.1% numunits 50.5% agvalue 100% parcelstate 100% township 100% section 100% qtrsection 100% range 100% plssdesc 99.3% placefp lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname usecode numbldgs numunits imprvalue landvalue agvalue totalvalue calcarea parceladdr parcelcity parcelstate parcelzip township section qtrsection range plssdesc book page block lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras placefp publish.parcel_layer columns not fed by these sources (45) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxyear, taxdistrict, usedesc, zoningcode, zoningdesc, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, taxacres, saleamt, saledate, ownertype, ownername, owneraddr, ownercity, ownerstate, ownerzip, legaldesc, parceltype, accesstype iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl caapermit, cwapermit, rcrapermit, ownerlist, zoningurl PARCEL 14 mapped · 24 kept in extras · 40 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL apn sortparcel usecode imps land totalnetvalue situsaddress situscity situszip book page parcel sub_parcel geom parcelid parcelid2 usecode imprvalue landvalue totalvalue parceladdr parcelcity parcelzip book page block lot geom extras · 24 source columns preserved as json apn_sort, clca_category, centroid_x, centroid_y, printparcel traprimary, trasecondary, situsstreetnumber, situsstreetname situsunit, situszip_4, clcaland, clcaimps, hoex, otex latestdocument_prefix, latestdocumentseries latestdocumentdate, mailingaddressstreet, mailingaddressunit mailingaddresscitystate, mailingaddresszip mailingaddresszip_4, econunit extras not present in source — filled with NULL (40) taxacctnum, taxyear, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths agvalue, taxacres, saleamt, saledate, ownername, owneraddr, ownercity, ownerstate, ownerzip, parcelstate, legaldesc, township, section qtrsection, range, plssdesc, updated, sourceurl, taxdistrict, parentid, fireplaces, heating, cooling, foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering Alameda County:

Frequently asked questions

Where can I find Alameda County, CA parcel and GIS data?

Land Records publishes a Alameda County, CA parcel dataset in which every parcel carries its boundary polygon (GIS geometry) along with ownership, assessed value, land use, acreage, and sale history. Preview it in the interactive explorer on this page, or download the full Alameda County, CA dataset as a GeoPackage or CSV.

How many parcels are in Alameda County, CA?

The current dataset contains 489,651 parcel records for Alameda County, CA, each with its boundary geometry and assessor attributes.

What is the FIPS code for Alameda County, CA?

The FIPS code for Alameda County, CA is 06001.

What information does each Alameda County, CA parcel record include?

Each Alameda County, CA parcel record includes the parcel ID/APN, owner name and mailing address, situs (property) address, assessed land and improvement values, acreage, land-use and zoning codes, year built, and the most recent sale price and date — plus the parcel boundary polygon. Per-attribute fill rates are listed in the coverage table on this page.

Is Alameda County, CA parcel data free?

You can preview Alameda County, CA parcels for free in the interactive explorer. The complete dataset is available as a one-time download or through the nationwide parcel web service; see the download options on this page for current pricing.

Does Alameda County, CA have an official GIS or property records website?

Yes — the official Alameda County, CA government website is linked in the county details above. Land Records standardizes Alameda County, CA assessor and recorder records into a single nationwide parcel schema with GIS boundary geometry.

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated