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Washtenaw County, MI Parcels & GIS Data

Washtenaw County, MI parcel data: 126,570 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Washtenaw County, Michigan parcel data covering 126,570 property records.

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

Washtenaw County is a southern county in the U.S. state of Michigan. At the 2020 census, the population was 372,258. The county seat and the largest city in the county is Ann Arbor.

FIPS 26161

Official county website: https://www.washtenaw.org

The FIPS code for Washtenaw County is 26161.

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Attribute coverage

Washtenaw County contains 126,570 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%126,570
parcelid99.9%126,476
parcelid21.4%1,787
ogparcelid99.9%126,477
ogparcelid20.2%229
parentid21.1%26,742
stackid<0.1%0
geoid100%126,570
statefp100%126,570
countyfp100%126,570
countyname100%126,570
cousubfp100%126,570
cousubname100%126,570
tractce100%126,570
tractname100%126,570
taxacctnum<0.1%0
taxyear100%126,570
taxdistrict99.5%125,893
usecode99.5%125,894
usedesc99.5%125,934
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs1.2%1,490
numunits1.0%1,292
yearbuilt<0.1%0
numfloors1.0%1,279
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue99.5%125,915
landvalue1.4%1,785
agvalue<0.1%0
totalvalue99.5%125,915
taxacres22.8%28,863
calcarea100%126,570
saleamt<0.1%0
saledate<0.1%0
ownertype99.5%125,979
ownername99.5%125,979
owneraddr99.3%125,698
ownercity99.3%125,702
ownerstate99.3%125,711
ownerzip99.3%125,746
parceladdr99.3%125,695
parcelcity98.9%125,160
parcelstate100%126,570
parcelzip100%126,570
legaldesc99.5%125,905
township100%126,558
section100%126,558
qtrsection100%126,558
range100%126,558
plssdesc100%126,558
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype0.4%515
accesstype1.4%1,766
iucnclass0.2%309
placename4.5%5,715
placetype4.4%5,627
firmid99.9%126,501
firmdate99.9%126,501
fldzone99.9%126,501
zonesubty98.1%124,190
staticbfe0.5%603
elevmin99.7%126,158
elevmax99.7%126,158
elevavg99.7%126,158
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
naicscode3.4%4,355
frsid<0.1%1
dfrurl<0.1%1
caapermit<0.1%1
cwapermit<0.1%1
rcrapermit<0.1%1
updated85.6%108,357
centroidx100%126,570
centroidy100%126,570
surfpointx100%126,570
surfpointy100%126,570
geom100%126,570
extras99.9%126,501
ownerlist78.2%98,947
placefp39.4%49,913
zoningurl<0.1%0
lbcsactivity99.2%125,539
lbcsfunction99.2%125,512
lbcstype99.2%125,522
lbcscharacter99.2%125,541
lbcsownership99.5%125,991
sourceurl<0.1%0

Schema mapping

How source columns from the acquired Washtenaw 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 — Washtenaw County, Michigan (26161) 1 entity · 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 pin tax_year prop_class prop_class_description building_assessment assessed_value statedarea owner_name owner_name2 owner_street owner_city owner_state owner_zip prop_street prop_city prop_state prop_zip legal_description lastupdate geom school_name parent_parcel_num 23 cols ⇢ parcelid taxyear usecode usedesc imprvalue totalvalue taxacres ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc updated geom taxdistrict parentid 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 98.1% zonesubty 0.5% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 100% township 100% section 100% qtrsection 100% range 100% plssdesc 78.2% ownerlist 99.2% lbcsactivity 99.2% lbcsfunction 99.2% lbcstype 99.2% lbcscharacter 100% lbcsownership lrid parcelid ogparcelid parentid geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear taxdistrict usecode usedesc imprvalue totalvalue taxacres calcarea ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc township section qtrsection range plssdesc 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 (44) — empty or below 50% fill in this county parcelid2, ogparcelid2, stackid, taxacctnum, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, landvalue, agvalue, saleamt, saledate, book, page, 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 21 mapped · 2 transformed · 23 kept in extras · 33 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL pin tax_year prop_class prop_class_description building_assessment assessed_value statedarea owner_name owner_name2 owner_street owner_city owner_state owner_zip prop_street prop_city prop_state prop_zip legal_description lastupdate geom school_name parent_parcel_num parcelid taxyear usecode usedesc imprvalue totalvalue taxacres ownername CASE WHEN NULLIF(TRIM(owner_name), '') IS NULL AND NULLIF(TRIM(… owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc updated CASE WHEN lastupdate IS NULL THEN NULL ELSE to_timestamp(lastup… geom taxdistrict parentid extras · 23 source columns preserved as json cvt_code, cvt_description, school_district, prop_street_num unit_apt_num, owner_care_of, owner_country, txpyrs_name txpyrs_care_of, txpyrs_street_addr, txpyrs_city, txpyrs_state txpyrs_zip_code, txpyrs_country, homestea_pct homestead_taxable, sev, capped_value, taxable_value historical_district, acreage_of_parent, status_code status_desc extras not present in source — filled with NULL (33) parcelid2, taxacctnum, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, landvalue agvalue, saleamt, saledate, township, section, qtrsection, range, plssdesc, book, page, block, lot, sourceurl, heatfuel, fireplaces, heating cooling, foundation, roofcover, siding

Neighboring counties

Parcel data for counties bordering Washtenaw County:

Frequently asked questions

Where can I find Washtenaw County, MI parcel and GIS data?

Land Records publishes a Washtenaw County, MI 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 Washtenaw County, MI dataset as a GeoPackage or CSV.

How many parcels are in Washtenaw County, MI?

The current dataset contains 126,570 parcel records for Washtenaw County, MI, each with its boundary geometry and assessor attributes.

What is the FIPS code for Washtenaw County, MI?

The FIPS code for Washtenaw County, MI is 26161.

What information does each Washtenaw County, MI parcel record include?

Each Washtenaw County, MI 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 Washtenaw County, MI parcel data free?

You can preview Washtenaw County, MI 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 Washtenaw County, MI have an official GIS or property records website?

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated