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Washington County, IA Parcels & GIS Data

Washington County, IA parcel data: 22,262 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Washington County, Iowa parcel data covering 22,262 property records.

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

Washington County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 22,565. The county seat and the largest city is Washington.

FIPS 19183

Official county website: http://co.washington.ia.us

The FIPS code for Washington County is 19183.

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Attribute coverage

Washington County contains 22,262 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%22,262
parcelid100%22,262
parcelid20.7%166
ogparcelid100%22,262
ogparcelid299.8%22,207
parentid<0.1%0
stackid<0.1%0
geoid100%22,262
statefp100%22,262
countyfp100%22,262
countyname100%22,262
cousubfp100%22,262
cousubname100%22,262
tractce100%22,262
tractname100%22,262
taxacctnum<0.1%0
taxyear100%22,262
taxdistrict<0.1%0
usecode<0.1%0
usedesc0.7%160
zoningcode26.1%5,817
zoningdesc26.1%5,817
numbldgs18.8%4,193
numunits18.3%4,066
yearbuilt<0.1%0
numfloors<0.1%1
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue98.7%21,981
landvalue98.7%21,981
agvalue98.7%21,981
totalvalue98.7%21,981
taxacres55.1%12,259
calcarea100%22,262
saleamt<0.1%0
saledate<0.1%0
ownertype99.8%22,210
ownername99.8%22,210
owneraddr<0.1%0
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr97.2%21,649
parcelcity52.9%11,778
parcelstate100%22,262
parcelzip100%22,262
legaldesc<0.1%0
township100%22,261
section100%22,261
qtrsection100%22,261
range100%22,261
plssdesc100%22,261
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype0.5%104
accesstype1.6%353
iucnclass0.9%210
placename4.3%950
placetype4.2%943
firmid100%22,262
firmdate100%22,262
fldzone100%22,262
zonesubty90.0%20,041
staticbfe<0.1%0
elevmin99.6%22,169
elevmax99.6%22,169
elevavg99.6%22,169
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
naicscode19.2%4,272
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated93.2%20,753
centroidx100%22,262
centroidy100%22,262
surfpointx100%22,262
surfpointy100%22,262
geom100%22,262
extras100%22,262
ownerlist63.8%14,201
placefp33.7%7,498
zoningurl26.1%5,815
lbcsactivity26.8%5,965
lbcsfunction26.8%5,962
lbcstype25.7%5,711
lbcscharacter99.2%22,076
lbcsownership99.8%22,210
sourceurl<0.1%0

Schema mapping

How source columns from the acquired Washington 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 — Washington County, Iowa (19183) 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 parcelid2 totalvalue taxacres ownername parceladdr geom parentid 2 cols ⇢ parcelid parcelid2 totalvalue taxacres ownername parceladdr geom parentid extras ZONING geom zoning districtnamefull classtype zoningnotes 254 cols ⇢ geom zoningcode zoningdesc zoningtype notes extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% taxyear 93.2% 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 90.0% zonesubty 100% firmdate 100% firmid supplemented · derived / other pipelines 98.7% imprvalue 98.7% landvalue 98.7% agvalue 52.9% parcelcity 100% parcelstate 100% parcelzip 100% township 100% section 100% qtrsection 100% range 100% plssdesc 63.8% ownerlist 99.2% lbcscharacter 100% lbcsownership lrid parcelid parcelid2 ogparcelid ogparcelid2 parentid geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear zoningcode zoningdesc imprvalue landvalue agvalue totalvalue taxacres calcarea ownertype ownername parceladdr parcelcity parcelstate parcelzip township section qtrsection range plssdesc firmid firmdate fldzone zonesubty elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist lbcscharacter lbcsownership publish.parcel_layer columns not fed by these sources (50) — empty or below 50% fill in this county stackid, taxacctnum, taxdistrict, usecode, usedesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, saleamt saledate, owneraddr, ownercity, ownerstate, ownerzip, legaldesc, book, page, block, lot, parceltype, accesstype, iucnclass, placename placetype, staticbfe, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit cwapermit, rcrapermit, placefp, zoningurl, lbcsactivity, lbcsfunction, lbcstype, sourceurl PARCEL 8 mapped · 2 kept in extras · 46 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcelid parcelid2 totalvalue taxacres ownername parceladdr geom parentid parcelid parcelid2 totalvalue taxacres ownername parceladdr geom parentid 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 · 254 kept in extras · 4 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ZONING geom zoning districtnamefull classtype zoningnotes geom zoningcode zoningdesc zoningtype notes extras · 254 source columns preserved as json zoning_join, city, source, fips7, acres, districtmapped districtmappedextinct, districtoverlay isrestrictedresidencedistrict, zoningtype districtoverlayalters, districtisplanneddev, family1treatment family1minlotsize, family1frontsetback, family1sidesetback family1rearsetback, family1maxcoveragebldgimperv family1minparking, family1parkingunit, family1maxstories family1maxheight, family1ftar, family1minunitsize family1maxbedrooms, family1landscaping, family1minfrontage family2treatment, family2minlotsize, family2maxdensity family2frontsetback, family2sidesetback, family2rearsetback family2maxcoveragebldgimperv, family2minparking family2maxstories, family2maxheight, family2ftar family2minunitsize, family2maxbedrooms, family2landscaping family2minfrontage, family2parkingunit, family3treatment family3minlotsize, family3maxdensity, family3frontsetback family3sidesetback, family3rearsetback family3maxcoveragebldgimperv, family3minparking family3connectiontransit, family3maxstories, family3maxheight family3ftar, family3minunitsize, family3maxbedrooms family3landscaping, family3minfrontage, family3parkingunit family4treatment, family4minlotsize, family4maxdensity family4frontsetback, family4sidesetback, family4rearsetback family4maxcoveragebldgimperv, family4minparking family4connectionsewer, family4maxstories, family4maxheight family4ftar, family4minunitsize, family4maxbedrooms family4maxunitsbldg, family4maxunitsdev, family4minfrontage family4parkingunit, family4landscaping, family5treatment family5minlotsize, family5minfrontage, family5maxdensity family5frontsetback, family5sidesetback, family5rearsetback family5maxcoveragebldgimperv, family5minparking family5parkingunit, family5connectionsewer family5connectiontransit, family5maxstories, family5maxheight family5ftar, family5minunitsize, family5maxbedrooms family5maxunitsbldg, family5maxunitsdev, family5landscaping family6treatment, family6minlotsize, family6minfrontage family6maxdensity, family6frontsetback, family6sidesetback family6rearsetback, family6maxcoveragebldgimperv family6minparking, family6parkingunit family6connectiontransit, family6maxstories, family6maxheight family6ftar, family6minunitsize, family6maxbedrooms family6maxunitsbldg, family6maxunitsdev, family6landscaping family7treatment, family7minlotsize, family7minfrontage family7maxdensity, family7frontsetback, family7sidesetback family7rearsetback, family7maxcoveragebldgimperv family7minparking, family7parkingunit, family7connectionsewer family7connectiontransit, family7maxstories, family7maxheight family7ftar, family7minunitsize, family7maxbedrooms family7maxunitsbldg, family7maxunitsdev, family7landscaping family8treatment, family8minlotsize, family8minfrontage family8maxdensity, family8frontsetback, family8sidesetback family8rearsetback, family8maxcoveragebldgimperv family8minparking, family8parkingunit family8connectiontransit, family8maxstories, family8maxheight family8ftar, family8minunitsize, family8maxbedrooms family8maxunitsbldg, family8maxunitsdev, family8landscaping family9treatment, family9affordable, family9minlotsize family9maxdensity, family9frontsetback, family9sidesetback family9rearsetback, family9maxcoveragebldgimperv family9minparking, family9connectiontransit family9maxstories, family9maxheight, family9ftar family9minunitsize, family9maxbedrooms, family9maxunitsbldg family9maxunitsbldgunits, family9maxunitsdev family9landscaping, family9minfrontage, family9parkingunit afftreatment, affminlotsize, aff2maxdensity, affminparking affconnectiontransit, affmaxbedrooms, affmaxunitsbldg affmaxunitsdev, afflandscaping, affminfrontage affparkingunit, affregulationdesc, adutreatment aduoccupancyfamily, aduoccupancyrenter, aduoccupancyowner aduelderly, aduminlotsize, aduminparking adurestrictedtoprimary, adusizeperc, adusizepercunit adumaxbedrooms, adurequirelotsize, adurequireminsize adurequiremaxsize, adurequireparking, adusizepercvalue adumaxbedroomsvalue, mobileparktreatment mobileparkminparksize, mobileparkminlotsize mobileparkmaxparksize, mobilehometreatment mobilehomeregulations, manufacturedhometreatment manufacturedhomeregulations, tinyhometreatment tinyhomethreshold, tinyhomeregulations, liveworktreatment planneddevsize, planneddevreferences planneddevreferenceslist, planneddevdensityregulated planneddevdensity, planneddevdensitytype, planneddevmixeduse manuparktreatment, manuparkminparksize, manuparkmaxparksize manuparkminlotsize, grptreatment, grpregulationdesc smallgrpbyright, smallgrpbypermit, biggrpbyright biggrpbypermit, grpminlotsize, grpminfrontage, grp2maxdensity grpminparking, grpparkingunit, grpmaxbedrooms grpmaxunitsbldg, grpmaxunitsdev, grplandscaping, pudtreatment pudminsize, puddensity, pudmixeduse, liveworkdefinition grpdefinition, tinyhomedefinition, affdefinition, city_class extras not present in source — filled with NULL (4) ordinance, setbacks, restrictions, sourceurl

Neighboring counties

Parcel data for counties bordering Washington County:

Frequently asked questions

Where can I find Washington County, IA parcel and GIS data?

Land Records publishes a Washington County, IA 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 Washington County, IA dataset as a GeoPackage or CSV.

How many parcels are in Washington County, IA?

The current dataset contains 22,262 parcel records for Washington County, IA, each with its boundary geometry and assessor attributes.

What is the FIPS code for Washington County, IA?

The FIPS code for Washington County, IA is 19183.

What information does each Washington County, IA parcel record include?

Each Washington County, IA 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 Washington County, IA parcel data free?

You can preview Washington County, IA 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 Washington County, IA have an official GIS or property records website?

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

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Attribute coverageSchema mappingNeighboring countiesFAQRelated