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Trempealeau County, WI Parcels & GIS Data

Trempealeau County, WI parcel data: 33,310 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Trempealeau County, Wisconsin parcel data covering 33,310 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 33,310 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%33,310
parcelid100%33,310
parcelid299.5%33,160
ogparcelid100%33,310
ogparcelid299.5%33,160
parentid<0.1%0
stackid<0.1%0
geoid100%33,310
statefp100%33,310
countyfp100%33,310
countyname100%33,310
cousubfp100%33,310
cousubname100%33,310
tractce100%33,310
tractname100%33,310
taxacctnum<0.1%1
taxyear100%33,310
taxdistrict95.7%31,881
usecode83.5%27,829
usedesc11.0%3,679
zoningcode54.3%18,087
zoningdesc54.1%18,016
numbldgs74.4%24,773
numunits41.1%13,688
yearbuilt<0.1%0
numfloors<0.1%2
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue99.5%33,148
landvalue99.5%33,148
agvalue<0.1%0
totalvalue99.7%33,197
taxacres99.9%33,284
calcarea100%33,310
saleamt<0.1%0
saledate<0.1%0
ownertype96.1%32,022
ownername96.1%32,022
owneraddr95.8%31,895
ownercity50.5%16,825
ownerstate50.5%16,834
ownerzip50.5%16,834
parceladdr81.3%27,088
parcelcity100%33,294
parcelstate100%33,310
parcelzip99.8%33,245
legaldesc<0.1%0
township100%33,303
section100%33,303
qtrsection100%33,303
range100%33,303
plssdesc100%33,303
book89.6%29,847
page87.6%29,173
block<0.1%0
lot<0.1%0
parceltype1.6%532
accesstype2.4%788
iucnclass2.0%661
placename4.8%1,609
placetype4.8%1,592
firmid100%33,307
firmdate100%33,307
fldzone100%33,307
zonesubty92.3%30,747
staticbfe<0.1%4
elevmin100%33,301
elevmax100%33,301
elevavg100%33,301
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
naicscode3.9%1,283
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated99.6%33,174
centroidx100%33,310
centroidy100%33,310
surfpointx100%33,310
surfpointy100%33,310
geom100%33,310
extras100%33,310
ownerlist59.0%19,662
placefp30.0%10,002
zoningurl<0.1%0
lbcsactivity90.2%30,048
lbcsfunction88.0%29,329
lbcstype94.2%31,363
lbcscharacter90.6%30,180
lbcsownership96.3%32,079
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 2026-10-17 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 parcelid parcelid2 totalvalue taxacres ownername parceladdr geom parentid 2 cols ⇢ parcelid parcelid2 totalvalue taxacres ownername parceladdr geom parentid 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 100% taxyear 100% updated 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 92.3% zonesubty 0.0% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 95.7% taxdistrict 83.5% usecode 74.4% numbldgs 100% imprvalue 100% landvalue 95.8% owneraddr 50.5% ownercity 50.5% ownerstate 50.5% ownerzip 100% parcelcity 100% parcelstate 100% parcelzip 100% township 100% section 100% qtrsection 100% range 100% plssdesc 89.6% book 87.6% page 59.0% ownerlist 90.2% lbcsactivity 88.0% lbcsfunction 94.2% lbcstype 90.6% lbcscharacter 96.3% lbcsownership lrid parcelid parcelid2 ogparcelid ogparcelid2 parentid geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear taxdistrict usecode zoningcode zoningdesc numbldgs imprvalue landvalue totalvalue taxacres calcarea ownertype ownername owneraddr ownercity ownerstate ownerzip 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 ownerlist lbcsactivity lbcsfunction lbcstype lbcscharacter lbcsownership publish.parcel_layer columns not fed by these sources (38) — empty or below 50% fill in this county stackid, taxacctnum, usedesc, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, agvalue, saleamt, saledate, legaldesc block, lot, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, placefp, zoningurl, sourceurl PARCEL 8 mapped · 7 transformed · 2 kept in extras · 46 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcelid parcelid2 totalvalue taxacres ownername parceladdr geom parentid parcelid NULLIF(TRIM(parcelid), '')::text parcelid2 NULLIF(TRIM(parcelid2), '')::text totalvalue NULLIF(TRIM(totalvalue), '')::text taxacres NULLIF(TRIM(taxacres), '')::text ownername NULLIF(TRIM(ownername), '')::text parceladdr NULLIF(TRIM(parceladdr), '')::text geom parentid NULLIF(TRIM(parentid), '')::text extras · 2 source columns preserved as json ogparcelid, geoid extras not present in source — filled with NULL (46) taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, saleamt, saledate, owneraddr, ownercity, ownerstate, ownerzip, parcelcity, parcelstate, parcelzip legaldesc, township, section, qtrsection, range, plssdesc, book, page, block, lot, updated, sourceurl, taxdistrict, 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 33,310 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