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Waukesha County, WI Parcels & GIS Data

Waukesha County, WI parcel data: 173,871 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Waukesha County, Wisconsin parcel data covering 173,871 property records.

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

Waukesha County is a county in the U.S. state of Wisconsin. As of the 2020 United States Census, the population was 406,978, making it the third-most populous county in Wisconsin. Its county seat and largest city is Waukesha.

FIPS 55133

Official county website: http://www.waukeshacounty.gov

The FIPS code for Waukesha County is 55133.

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Attribute coverage

Waukesha County contains 173,871 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL). For the LBCS columns, only real classifications count: the to-be-determined and not-applicable placeholder codes are excluded.

ColumnCoverageRecords populated
lrid100%173,871
parcelid100%173,871
parcelid2100%173,871
ogparcelid100%173,871
ogparcelid2100%173,871
parentid<0.1%0
stackid<0.1%0
geoid100%173,871
statefp100%173,871
countyfp100%173,871
countyname100%173,871
cousubfp100%173,871
cousubname100%173,871
tractce100%173,871
tractname100%173,871
taxacctnum<0.1%31
taxyear100%173,871
taxdistrict97.9%170,220
usecode92.7%161,139
usedesc44.7%77,778
zoningcode3.0%5,261
zoningdesc2.0%3,429
numbldgs94.1%163,661
numunits87.7%152,435
yearbuilt<0.1%0
numfloors0.1%94
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue97.5%169,468
landvalue97.5%169,590
agvalue<0.1%0
totalvalue97.5%169,590
taxacres99.0%172,101
calcarea100%173,871
saleamt<0.1%0
saledate<0.1%0
ownertype96.9%168,425
ownername96.9%168,425
owneraddr96.2%167,332
ownercity45.1%78,407
ownerstate45.1%78,418
ownerzip45.1%78,425
parceladdr95.2%165,581
parcelcity100%173,871
parcelstate100%173,871
parcelzip100%173,871
legaldesc<0.1%0
township99.9%173,779
section99.9%173,779
qtrsection99.9%173,779
range99.9%173,779
plssdesc99.9%173,779
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype0.5%915
accesstype0.6%1,097
iucnclass0.3%541
placename6.2%10,838
placetype6.2%10,714
firmid100%173,869
firmdate100%173,869
fldzone100%173,869
zonesubty98.7%171,546
staticbfe0.1%178
elevmin99.8%173,488
elevmax99.8%173,488
elevavg99.8%173,488
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
naicscode6.3%11,013
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated98.9%171,957
centroidx100%173,871
centroidy100%173,871
surfpointx100%173,871
surfpointy100%173,871
geom100%173,871
extras100%173,871
ownerlist74.1%128,892
placefp85.1%148,045
zoningurl3.0%5,261
lbcsactivity95.8%166,498
lbcsfunction95.3%165,729
lbcstype95.7%166,455
lbcscharacter96.0%166,869
lbcsownership97.0%168,578
sourceurl<0.1%0

Schema mapping

How source columns from the acquired Waukesha 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 — Waukesha County, Wisconsin (55133) 2 entities · most recent acquisition per entity · generated 2026-10-17 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 taxkey globalid taxrollyear propclass impvalue lndvalue cntassdvalue assdacres deedacres gisacres ownernme1 ownernme2 ownernamefull pstladress siteadress muni_decoded placename zipcode zip4 export_date geom schooldistno_decoded auxclass schooldistno muni estfmkvalue grsprpta netprpta nottruearea pstladressline1 pstladressline2 addnum prefix streetname streettype suffix mflvalue assesswo highschooldistno tifdist firedist lakedist sewerdist prelimflag parcelid parcelid2 taxyear usecode imprvalue landvalue totalvalue taxacres ownername owneraddr parceladdr parcelcity parcelstate parcelzip updated geom taxdistrict extras ZONING code ordinanceu geom 6 cols ⇢ zoningcode ordinance geom extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname geom · derived from geometry geom dem.us_1m · USGS 1m DEM 100% elevmin 100% elevmax 100% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 98.7% zonesubty 0.1% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 94.1% numbldgs 87.7% numunits 100% township 100% section 100% qtrsection 100% range 100% plssdesc 74.1% ownerlist 85.1% placefp 95.8% lbcsactivity 95.3% lbcsfunction 95.7% lbcstype 96.0% lbcscharacter 97.0% lbcsownership lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear taxdistrict usecode zoningcode numbldgs numunits imprvalue landvalue totalvalue taxacres calcarea ownertype ownername owneraddr parceladdr parcelcity parcelstate parcelzip township section qtrsection range plssdesc firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist placefp lbcsactivity lbcsfunction lbcstype lbcscharacter lbcsownership publish.parcel_layer columns not fed by these sources (43) — empty or below 50% fill in this county parentid, stackid, taxacctnum, usedesc, zoningdesc, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, agvalue, saleamt, saledate ownercity, ownerstate, ownerzip, legaldesc, book, page, block, lot, parceltype, accesstype, iucnclass, placename, placetype, fireplaces heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, zoningurl sourceurl PARCEL 18 mapped · 7 transformed · 37 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL taxkey globalid taxrollyear propclass impvalue lndvalue cntassdvalue assdacres deedacres gisacres ownernme1 ownernme2 ownernamefull pstladress siteadress muni_decoded placename zipcode zip4 export_date geom schooldistno_decoded auxclass schooldistno muni estfmkvalue grsprpta netprpta nottruearea pstladressline1 pstladressline2 addnum prefix streetname streettype suffix mflvalue assesswo highschooldistno tifdist firedist lakedist sewerdist prelimflag parcelid parcelid2 taxyear usecode imprvalue landvalue totalvalue taxacres COALESCE(NULLIF(assdacres, 0)::text, NULLIF(deedacres, 0)::text… ownername CASE WHEN COALESCE(NULLIF(TRIM(ownernme1), '')::text, NULLIF(TR… owneraddr parceladdr parcelcity COALESCE(muni_decoded::text, placename::text)::text parcelstate 'WI'::text parcelzip CASE WHEN TRIM(COALESCE(zipcode::text, '')) = '' THEN NULL WHEN… updated to_timestamp(export_date / 1000.0)::text geom taxdistrict extras json_build_object( 'auxclass', auxclass::text, 'schooldistno', … not present in source — filled with NULL (37) taxacctnum, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, agvalue saleamt, saledate, ownercity, ownerstate, ownerzip, legaldesc, township, section, qtrsection, range, plssdesc, book, page, block, lot sourceurl, parentid, heatfuel, fireplaces, heating, cooling, foundation, roofcover, siding ZONING 3 mapped · 2 transformed · 6 kept in extras · 6 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ZONING code ordinanceu geom zoningcode NULLIF(TRIM(code), '')::text ordinance NULLIF(TRIM(ordinanceu), '')::text geom extras · 6 source columns preserved as json uid, userid, editdate, overlay, acres, globalid extras not present in source — filled with NULL (6) zoningdesc, zoningtype, setbacks, restrictions, notes, sourceurl

Neighboring counties

Parcel data for counties bordering Waukesha County:

Frequently asked questions

Where can I find Waukesha County, WI parcel and GIS data?

Land Records publishes a Waukesha County, WI 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 Waukesha County, WI dataset as a GeoPackage or CSV.

How many parcels are in Waukesha County, WI?

The current dataset contains 173,871 parcel records for Waukesha County, WI, each with its boundary geometry and assessor attributes.

What is the FIPS code for Waukesha County, WI?

The FIPS code for Waukesha County, WI is 55133.

What information does each Waukesha County, WI parcel record include?

Each Waukesha County, WI 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 Waukesha County, WI parcel data free?

You can preview Waukesha County, WI 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 Waukesha County, WI have an official GIS or property records website?

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated