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Marathon County, WI Parcels & GIS Data

Marathon County, WI parcel data: 83,746 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Marathon County, Wisconsin parcel data covering 83,746 property records.

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

Marathon County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 138,013. Its county seat is Wausau.

FIPS 55073

Official county website: https://ascent.co.marathon.wi.us/AscentLandRecords/PropertyListing/RealEstateTaxParcel/DetailByMuniCodeParcelNumber?parcelNumber=

The FIPS code for Marathon County is 55073.

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Attribute coverage

Marathon County contains 83,746 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%83,746
parcelid100%83,746
parcelid2100%83,707
ogparcelid100%83,746
ogparcelid2100%83,746
parentid<0.1%0
stackid<0.1%0
geoid100%83,746
statefp100%83,746
countyfp100%83,746
countyname100%83,746
cousubfp100%83,746
cousubname100%83,746
tractce100%83,746
tractname100%83,746
taxacctnum<0.1%0
taxyear100%83,746
taxdistrict99.4%83,216
usecode91.0%76,217
usedesc<0.1%21
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs65.5%54,823
numunits65.4%54,791
yearbuilt<0.1%0
numfloors<0.1%1
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue100%83,713
landvalue100%83,707
agvalue<0.1%0
totalvalue100%83,707
taxacres100%83,746
calcarea100%83,746
saleamt<0.1%0
saledate<0.1%0
ownertype99.4%83,215
ownername99.4%83,215
owneraddr99.4%83,216
ownercity99.3%83,151
ownerstate99.3%83,151
ownerzip99.3%83,151
parceladdr99.3%83,169
parcelcity99.3%83,201
parcelstate100%83,746
parcelzip100%83,746
legaldesc99.3%83,151
township100%83,739
section100%83,739
qtrsection100%83,739
range100%83,739
plssdesc100%83,739
book98.7%82,620
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype0.5%404
accesstype1.8%1,480
iucnclass1.4%1,211
placename53.9%45,110
placetype5.2%4,328
firmid100%83,746
firmdate100%83,746
fldzone100%83,746
zonesubty95.7%80,161
staticbfe0.1%45
elevmin99.7%83,534
elevmax99.7%83,534
elevavg99.7%83,534
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
naicscode59.5%49,824
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%83,746
centroidx100%83,746
centroidy100%83,746
surfpointx100%83,746
surfpointy100%83,746
geom100%83,746
extras100%83,746
ownerlist67.6%56,585
placefp51.9%43,486
zoningurl<0.1%0

Schema mapping

How source columns from the acquired Marathon 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 — Marathon County, Wisconsin (55073) 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 parcelid stateid taxrollyea propclass impvalue lndvalue cntassdval assdacres ownernme1 ownernme2 pstladress siteadress placename state zipcode loaddate geom schooldist 24 cols ⇢ parcelid parcelid2 taxyear usecode imprvalue landvalue totalvalue taxacres ownername owneraddr parceladdr parcelcity parcelstate parcelzip updated geom taxdistrict 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 95.7% zonesubty 0.1% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 65.5% numbldgs 65.4% numunits 99.3% ownercity 99.3% ownerstate 99.3% ownerzip 99.3% legaldesc 100% township 100% section 100% qtrsection 100% range 100% plssdesc 98.7% book 53.9% placename 59.5% naicscode 67.6% ownerlist 51.9% placefp lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear taxdistrict usecode numbldgs numunits imprvalue landvalue totalvalue taxacres calcarea ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc township section qtrsection range plssdesc book placename firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg naicscode updated centroidx centroidy surfpointx surfpointy geom extras ownerlist placefp publish.parcel_layer columns not fed by these sources (36) — empty or below 50% fill in this county parentid, stackid, taxacctnum, usedesc, zoningcode, zoningdesc, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, agvalue saleamt, saledate, page, block, lot, parceltype, accesstype, iucnclass, placetype, fireplaces, heating, heatfuel, cooling, foundation roofcover, siding, bldgtype, frsid, dfrurl, caapermit, cwapermit, rcrapermit, zoningurl PARCEL 17 mapped · 1 transformed · 24 kept in extras · 37 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcelid stateid taxrollyea propclass impvalue lndvalue cntassdval assdacres ownernme1 ownernme2 pstladress siteadress placename state zipcode loaddate geom schooldist parcelid parcelid2 taxyear usecode imprvalue landvalue totalvalue taxacres ownername NULLIF(concat_ws(';', ownernme1, ownernme2), '')::text owneraddr parceladdr parcelcity parcelstate parcelzip updated geom taxdistrict extras · 24 source columns preserved as json id, taxparceli, parceldate, addnumpref, addnum, addnumsuff prefix, streetname, streettype, suffix, landmarkna, unittype unitid, zip4, schooldi_1, mflvalue, estfmkvalu, netprpta grsprpta, auxclass, deedacres, gisacres, longitude, latitude extras 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

Neighboring counties

Parcel data for counties bordering Marathon County:

Frequently asked questions

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

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

How many parcels are in Marathon County, WI?

The current dataset contains 83,746 parcel records for Marathon County, WI, each with its boundary geometry and assessor attributes.

What is the FIPS code for Marathon County, WI?

The FIPS code for Marathon County, WI is 55073.

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

Each Marathon 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 Marathon County, WI parcel data free?

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

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated