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Trempealeau County, WI Parcels & GIS Data

Trempealeau County, WI parcel data: 33,446 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Trempealeau County, Wisconsin parcel data covering 33,446 property records.

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

Trempealeau County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 30,760. Its county seat is Whitehall.

FIPS 55121

Official county website: http://www.tremplocounty.com

The FIPS code for Trempealeau County is 55121.

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Attribute coverage

Trempealeau County contains 33,446 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%33,446
parcelid100%33,446
parcelid296.2%32,173
ogparcelid100%33,446
ogparcelid296.2%32,173
parentid<0.1%0
stackid<0.1%0
geoid100%33,446
statefp100%33,446
countyfp100%33,446
countyname100%33,446
cousubfp100%33,446
cousubname100%33,446
tractce100%33,446
tractname100%33,446
taxacctnum<0.1%0
taxyear<0.1%0
taxdistrict<0.1%0
usecode<0.1%0
usedesc<0.1%0
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs<0.1%0
numunits<0.1%0
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue<0.1%0
landvalue<0.1%0
agvalue<0.1%0
totalvalue<0.1%0
taxacres99.8%33,388
calcarea100%33,446
saleamt<0.1%0
saledate<0.1%0
ownertype96.2%32,173
ownername96.2%32,173
owneraddr96.2%32,173
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr93.4%31,238
parcelcity<0.1%0
parcelstate100%33,446
parcelzip99.8%33,376
legaldesc<0.1%0
township100%33,438
section100%33,438
qtrsection100%33,438
range100%33,438
plssdesc100%33,438
book90.0%30,093
page88.0%29,419
block<0.1%0
lot<0.1%0
parceltype2.4%790
accesstype2.4%790
iucnclass2.0%665
placename4.8%1,596
placetype4.7%1,579
firmid100%33,444
firmdate100%33,444
fldzone100%33,444
zonesubty92.1%30,818
staticbfe<0.1%4
elevmin100%33,437
elevmax100%33,437
elevavg100%33,437
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
naicscode69.1%23,110
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated<0.1%0
centroidx100%33,446
centroidy100%33,446
surfpointx100%33,446
surfpointy100%33,446
geom100%33,446
extras100%33,446
ownerlist89.8%30,023
placefp29.9%10,016
zoningurl<0.1%0

Schema mapping

How source columns from the acquired Trempealeau 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 — Trempealeau County, Wisconsin (55121) 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 pin parcelid gisacres beaconname1 beaconaddress1 beaconaddress2 cvt_no vol page geom monumentation doc beaconname2 beaconcsz parcelid parcelid2 taxacres ownername owneraddr parceladdr township book page 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 92.1% zonesubty 0.0% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 100% parcelstate 100% parcelzip 100% section 100% qtrsection 100% range 100% plssdesc 69.1% naicscode 89.8% ownerlist lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacres calcarea ownertype ownername owneraddr parceladdr parcelstate parcelzip township section qtrsection range plssdesc book page firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg naicscode centroidx centroidy surfpointx surfpointy geom extras ownerlist publish.parcel_layer columns not fed by these sources (51) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxyear, taxdistrict, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors bldgsqft, bedrooms, halfbaths, fullbaths, imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, ownercity, ownerstate, ownerzip parcelcity, legaldesc, block, lot, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation roofcover, siding, bldgtype, frsid, dfrurl, caapermit, cwapermit, rcrapermit, updated, placefp, zoningurl PARCEL 11 mapped · 1 transformed · 44 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL pin parcelid gisacres beaconname1 beaconaddress1 beaconaddress2 cvt_no vol page geom monumentation doc beaconname2 beaconcsz parcelid parcelid2 taxacres ownername owneraddr parceladdr township book page geom extras json_build_object('monumentation', monumentation::text, 'doc', … not present in source — filled with NULL (44) taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, ownercity, ownerstate, ownerzip, parcelcity, parcelstate, parcelzip legaldesc, section, qtrsection, range, plssdesc, block, lot, updated, sourceurl, taxdistrict, parentid, fireplaces, heating, cooling foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering Trempealeau County:

Frequently asked questions

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

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

How many parcels are in Trempealeau County, WI?

The current dataset contains 33,446 parcel records for Trempealeau County, WI, each with its boundary geometry and assessor attributes.

What is the FIPS code for Trempealeau County, WI?

The FIPS code for Trempealeau County, WI is 55121.

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

Each Trempealeau 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 Trempealeau County, WI parcel data free?

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

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated