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San Mateo County, CA Parcels & GIS Data

San Mateo County, CA parcel data: 257,135 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes San Mateo County, California parcel data covering 257,135 property records.

This page documents parcel-level coverage for San Mateo 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 San Mateo County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete San Mateo County property dataset.

San Mateo County, officially the County of San Mateo, is a county located in the U.S. state of California. As of the 2020 United States census, the population was 764,442. Redwood City is the county seat, the third-most populated city in the county after Daly City and San Mateo.

FIPS 06081

Official county website: https://smcgov.org

The FIPS code for San Mateo County is 06081.

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Attribute coverage

San Mateo County contains 257,135 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%257,135
parcelid100%257,135
parcelid2100%257,135
ogparcelid100%257,135
ogparcelid2100%257,135
parentid<0.1%0
stackid<0.1%0
geoid100%257,135
statefp100%257,135
countyfp100%257,135
countyname100%257,135
cousubfp100%257,135
cousubname100%257,135
tractce100%257,135
tractname100%257,135
taxacctnum<0.1%0
taxyear89.5%230,123
taxdistrict10.5%26,995
usecode46.3%119,138
usedesc88.9%228,553
zoningcode93.5%240,543
zoningdesc46.5%119,629
numbldgs100%257,134
numunits77.6%199,543
yearbuilt0.3%807
numfloors70.8%182,058
bldgsqft0.3%713
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue44.5%114,308
landvalue44.5%114,309
agvalue44.5%114,308
totalvalue44.5%114,309
taxacres<0.1%4
calcarea100%257,135
saleamt<0.1%0
saledate35.7%91,797
ownertype93.2%239,592
ownername92.2%236,984
owneraddr45.6%117,293
ownercity45.6%117,282
ownerstate45.6%117,200
ownerzip45.6%117,243
parceladdr99.2%255,179
parcelcity99.4%255,610
parcelstate100%257,135
parcelzip99.9%256,901
legaldesc<0.1%0
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book<0.1%1
page<0.1%1
block<0.1%2
lot<0.1%2
parceltype1.2%3,108
accesstype1.2%3,108
iucnclass0.5%1,373
placename5.0%12,921
placetype4.6%11,789
firmid100%257,131
firmdate100%257,131
fldzone100%257,131
zonesubty96.6%248,280
staticbfe2.1%5,363
elevmin12.8%32,964
elevmax12.8%32,964
elevavg12.8%32,964
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
naicscode9.7%24,896
frsid0.7%1,835
dfrurl0.7%1,835
caapermit0.7%1,835
cwapermit0.7%1,835
rcrapermit0.7%1,835
updated100%257,134
centroidx100%257,135
centroidy100%257,135
surfpointx100%257,135
surfpointy100%257,135
geom100%257,135
extras100%257,135
lrversion100%257,135

Schema mapping

How source columns from the acquired San Mateo 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 — San Mateo County, California (06081) 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 search_apn owner_firstname owner_lastname owner_st_number owner_st_dir owner_st_name owner_st_type owner_st_unit owner_city owner_state owner_zip site_st_number site_st_dir site_st_name site_st_type site_st_unit site_city site_state site_zip geom 7 cols ⇢ parcelid parcelid2 ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip geom extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% updated 100% lrversion geom · derived from geometry geom dem.us_1m · USGS 1m DEM 12.8% elevmin 12.8% elevmax 12.8% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 96.6% zonesubty 2.1% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 89.5% taxyear 88.9% usedesc 93.5% zoningcode 100% numbldgs 77.6% numunits 70.8% numfloors lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear usedesc zoningcode numbldgs numunits numfloors calcarea ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip 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 (47) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxdistrict, usecode, zoningdesc, yearbuilt, bldgsqft, bedrooms, halfbaths, fullbaths, imprvalue, landvalue agvalue, totalvalue, taxacres, saleamt, saledate, legaldesc, township, section, qtrsection, range, plssdesc, book, page, block, lot, parceltype accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid dfrurl, caapermit, cwapermit, rcrapermit PARCEL 12 mapped · 3 transformed · 7 kept in extras · 42 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL apn search_apn owner_firstname owner_lastname owner_st_number owner_st_dir owner_st_name owner_st_type owner_st_unit owner_city owner_state owner_zip site_st_number site_st_dir site_st_name site_st_type site_st_unit site_city site_state site_zip geom parcelid parcelid2 ownername CAST(COALESCE(owner_firstname, '') || ' ' || COALESCE(owner_las… owneraddr CAST(COALESCE(owner_st_number, '') || ' ' || COALESCE(owner_st_… ownercity ownerstate ownerzip parceladdr CAST(COALESCE(site_st_number, '') || ' ' || COALESCE(site_st_di… parcelcity parcelstate parcelzip geom extras · 7 source columns preserved as json site_st_post_dir, clientid, shape_starea__, shape_stlength__ stagingid, oldglobalid, globalid extras not present in source — filled with NULL (42) taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, totalvalue, taxacres, saleamt, saledate, legaldesc, township, section, qtrsection, range, plssdesc book, page, block, lot, updated, sourceurl, taxdistrict, parentid, fireplaces, heating, cooling, foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering San Mateo County:

On this page

Attribute coverageSchema mappingNeighboring countiesRelated