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Land Records

Alameda County, CA Parcels & GIS Data

Alameda County, CA parcel data: 489,609 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Alameda County, California parcel data covering 489,609 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.

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Attribute coverage

Alameda County contains 489,609 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%489,609
parcelid100%489,609
parcelid2100%489,609
ogparcelid100%489,609
ogparcelid2100%489,609
parentid<0.1%0
stackid<0.1%0
geoid100%489,609
statefp100%489,609
countyfp100%489,609
countyname100%489,609
cousubfp100%489,609
cousubname100%489,609
tractce100%489,609
tractname100%489,609
taxacctnum<0.1%7
taxyear<0.1%9
taxdistrict<0.1%22
usecode99.9%489,316
usedesc<0.1%2
zoningcode<0.1%2
zoningdesc<0.1%2
numbldgs92.2%451,183
numunits92.2%451,183
yearbuilt<0.1%7
numfloors<0.1%6
bldgsqft<0.1%21
bedrooms<0.1%7
halfbaths<0.1%7
fullbaths<0.1%22
imprvalue92.3%451,720
landvalue94.2%461,290
agvalue50.5%247,223
totalvalue93.7%458,975
taxacres<0.1%7
calcarea100%489,609
saleamt<0.1%0
saledate<0.1%2
ownertype<0.1%9
ownername<0.1%9
owneraddr<0.1%22
ownercity<0.1%22
ownerstate<0.1%9
ownerzip<0.1%22
parceladdr99.9%489,313
parcelcity99.9%489,316
parcelstate100%489,609
parcelzip100%489,608
legaldesc<0.1%0
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book100%489,594
page100%489,594
block83.5%408,867
lot10.7%52,350
parceltype0.7%3,252
accesstype0.7%3,252
iucnclass0.1%505
placename8.5%41,776
placetype8.4%41,004
firmid100%489,609
firmdate100%489,609
fldzone100%489,609
zonesubty98.0%479,730
staticbfe1.1%5,267
elevmin8.8%43,110
elevmax8.8%43,110
elevavg8.8%43,110
fireplaces<0.1%6
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%41,776
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated<0.1%22
centroidx100%489,609
centroidy100%489,609
surfpointx100%489,609
surfpointy100%489,609
geom100%489,609
extras100%489,609
lrversion100%489,609

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 2026-07-13 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 0.0% updated 100% lrversion 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 92.2% numbldgs 92.2% numunits 50.5% agvalue 100% parcelstate 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 book page block lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras lrversion publish.parcel_layer columns not fed by these sources (48) — 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, township, section qtrsection, range, plssdesc, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit 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:

On this page

Attribute coverageSchema mappingNeighboring countiesRelated