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Trempealeau County, WI Parcels & GIS Data

Trempealeau County, WI parcel data: 33,185 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Trempealeau County, Wisconsin parcel data covering 33,185 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 33,185 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%33,185
parcelid100%33,185
parcelid299.9%33,163
ogparcelid100%33,185
ogparcelid299.9%33,163
parentid<0.1%0
stackid<0.1%0
geoid100%33,185
statefp100%33,185
countyfp100%33,185
countyname100%33,185
cousubfp100%33,185
cousubname100%33,185
tractce100%33,185
tractname100%33,185
taxacctnum<0.1%1
taxyear100%33,185
taxdistrict96.1%31,881
usecode83.9%27,829
usedesc0.1%23
zoningcode99.7%33,097
zoningdesc99.5%33,005
numbldgs41.4%13,724
numunits41.2%13,687
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue99.9%33,148
landvalue99.9%33,148
agvalue<0.1%0
totalvalue99.9%33,148
taxacres100%33,185
calcarea100%33,185
saleamt<0.1%0
saledate<0.1%0
ownertype<0.1%15
ownername96.1%31,898
owneraddr96.1%31,898
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr93.7%31,109
parcelcity96.1%31,880
parcelstate100%33,185
parcelzip99.8%33,120
legaldesc<0.1%0
township100%33,176
section100%33,176
qtrsection100%33,176
range100%33,176
plssdesc100%33,176
book89.9%29,849
page87.9%29,175
block<0.1%0
lot<0.1%0
parceltype1.6%523
accesstype2.3%777
iucnclass2.0%651
placename4.8%1,585
placetype4.7%1,567
firmid100%33,183
firmdate100%33,183
fldzone100%33,183
zonesubty92.2%30,599
staticbfe<0.1%4
elevmin100%33,176
elevmax100%33,176
elevavg100%33,176
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
naicscode4.8%1,593
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%33,185
centroidx100%33,185
centroidy100%33,185
surfpointx100%33,185
surfpointy100%33,185
geom100%33,185
extras100%33,185
ownerlist<0.1%15
placefp30.0%9,963
zoningurl<0.1%0
lbcsactivity90.3%29,965
lbcsfunction89.5%29,714
lbcstype90.3%29,968
lbcscharacter90.3%29,981
lbcsownership96.3%31,953
sourceurl<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) 2 entities · most recent acquisition per entity · generated 2026-10-10 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 parcelid stateid taxparceli taxrollyea propclass impvalue lndvalue cntassdval assdacres ownernme1 ownernme2 pstladress siteadress placename state zipcode parceldate loaddate geom schooldist id addnumpref addnum addnumsuff prefix streetname streettype suffix landmarkna unittype unitid zip4 schooldi_1 mflvalue estfmkvalu netprpta grsprpta auxclass deedacres gisacres coname parcelfips parcelsrc longitude latitude parcelid parcelid2 taxacctnum taxyear usecode imprvalue landvalue totalvalue taxacres ownername owneraddr parceladdr parcelcity parcelstate parcelzip updated geom taxdistrict extras ZONING district description resolutions geom datechanged prevdesignation proposed planningtown globalid verified_date verified_by zoningcode zoningdesc 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 92.2% zonesubty 0.0% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 100% township 100% section 100% qtrsection 100% range 100% plssdesc 89.9% book 87.9% page 90.3% lbcsactivity 89.5% lbcsfunction 90.3% lbcstype 90.3% lbcscharacter 96.3% lbcsownership lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxyear taxdistrict usecode zoningcode zoningdesc imprvalue landvalue totalvalue taxacres calcarea ownertype ownername owneraddr parceladdr parcelcity parcelstate parcelzip township section qtrsection range plssdesc book page firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras 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, usedesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, agvalue, saleamt, saledate ownercity, ownerstate, ownerzip, legaldesc, block, lot, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, ownerlist, placefp, zoningurl sourceurl PARCEL 19 mapped · 14 transformed · 36 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcelid stateid taxparceli taxrollyea propclass impvalue lndvalue cntassdval assdacres ownernme1 ownernme2 pstladress siteadress placename state zipcode parceldate loaddate geom schooldist id addnumpref addnum addnumsuff prefix streetname streettype suffix landmarkna unittype unitid zip4 schooldi_1 mflvalue estfmkvalu netprpta grsprpta auxclass deedacres gisacres coname parcelfips parcelsrc longitude latitude parcelid NULLIF(btrim(parcelid), '')::text parcelid2 NULLIF(btrim(stateid), '')::text taxacctnum NULLIF(btrim(taxparceli), '')::text taxyear NULLIF(btrim(taxrollyea), '')::text usecode NULLIF(btrim(propclass), '')::text imprvalue landvalue totalvalue taxacres ownername NULLIF(btrim(concat(ownernme1, ';', ownernme2), ';'), '')::text owneraddr NULLIF(btrim(pstladress), '')::text parceladdr NULLIF(btrim(siteadress), '')::text parcelcity NULLIF(btrim(placename), '')::text parcelstate NULLIF(btrim(state), '')::text parcelzip NULLIF(btrim(zipcode), '')::text updated COALESCE(NULLIF(btrim(parceldate), '')::text, NULLIF(btrim(load… geom taxdistrict NULLIF(btrim(schooldist), '')::text extras (json_build_object( 'id', id::text, 'addnumpref', addnumpref::t… not present in source — filled with NULL (36) 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 5 mapped · 1 transformed · 5 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ZONING district description resolutions geom datechanged prevdesignation proposed planningtown globalid verified_date verified_by zoningcode zoningdesc ordinance geom extras json_build_object( 'datechanged', datechanged::text, 'prevdesig… not present in source — filled with NULL (5) zoningtype, setbacks, restrictions, notes, sourceurl

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 33,185 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