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Washington County, IL Parcels & GIS Data

Washington County, IL parcel data: 22,236 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Washington County, Illinois parcel data covering 22,236 property records.

This page documents parcel-level coverage for Washington County, Illinois. 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 Illinois. As of the 2020 census, it had a population of 13,761. Its county seat is Nashville.

FIPS 17189

Official county website: http://washingtonco.illinois.gov/

The FIPS code for Washington County is 17189.

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JeffersonPerryRandolphSt. ClairClintonMarionWashington

Attribute coverage

Washington County contains 22,236 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%22,236
parcelid99.6%22,149
parcelid2100%22,236
ogparcelid99.6%22,149
ogparcelid2100%22,236
parentid<0.1%0
stackid<0.1%0
geoid100%22,236
statefp100%22,236
countyfp100%22,236
countyname100%22,236
cousubfp100%22,236
cousubname100%22,236
tractce100%22,236
tractname100%22,236
taxacctnum<0.1%0
taxyear100%22,236
taxdistrict<0.1%0
usecode1.2%277
usedesc2.4%523
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs43.3%9,623
numunits35.4%7,875
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue35.4%7,875
landvalue41.1%9,135
agvalue55.3%12,303
totalvalue<0.1%0
taxacres94.8%21,085
calcarea100%22,236
saleamt39.1%8,698
saledate<0.1%0
ownertype92.8%20,645
ownername92.8%20,645
owneraddr84.2%18,723
ownercity91.2%20,285
ownerstate91.2%20,285
ownerzip91.2%20,285
parceladdr42.7%9,501
parcelcity4.6%1,021
parcelstate100%22,236
parcelzip100%22,236
legaldesc93.0%20,674
township100%22,236
section100%22,236
qtrsection100%22,236
range100%22,236
plssdesc100%22,236
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype0.1%33
accesstype0.3%69
iucnclass0.2%55
placename29.8%6,634
placetype2.1%465
firmid0.1%13
firmdate0.1%13
fldzone0.1%13
zonesubty<0.1%3
staticbfe<0.1%0
elevmin99.3%22,087
elevmax99.3%22,087
elevavg99.3%22,087
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
naicscode37.9%8,425
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated88.5%19,688
centroidx100%22,236
centroidy100%22,236
surfpointx100%22,236
surfpointy100%22,236
geom100%22,236
extras100%22,236
ownerlist72.6%16,146
placefp34.7%7,707
zoningurl<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, Illinois (17189) 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 pin parcel_number land_use_code non_farm_building farm_dwelling farm_building non_farm_land farm_homesite farm_land acreage net_sale_price sale_date owner_name_1 owner_name_2 address address_2 billing_city billing_state billing_zip_code site_address_1 site_address_2 legal_description_1 legal_description_2 legal_description_3 legal_description_4 township_name geom entid dbtype mslink point_type label_class txt_angle condoid globalid parcelid objectid_1 property_class township_code tax_code gross_acreage mineral owner_occupied_exemption f1977_value senior_citizen_exemption home_improvement_exemption hie_year city_state zip_code sale_exist_y_n grantee document_number senior_assmnt_freeze veterans_exemption parcel_status subdivision_number home_owner_exemption_flag senior_citizen_flag senior_assessment_flag lending_code billing_name billing_address_1 billing_address_2 disabeled_veteran_exemption disabeled_vete…n_exemption_fla fraternal_freeze_exemption fraternal_free…_exemption_flag special_ownr_o…upied_exemption special_ownr_o…upied_exempti_1 historic_freeze_exemption historic_freeze_exemption_flag ntrl_disaster_exemption ntrl_disaster_exemption_flag returning_veteran_exemption returning_vete…n_exemption_fla veteran_freeze_exemption veteran_freeze_exemption_flag disabled_person_exemption disabled_person_exemption_flag location parcelid parcelid2 usecode imprvalue landvalue agvalue taxacres saleamt saledate ownername owneraddr ownercity ownerstate ownerzip parceladdr legaldesc township 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 88.5% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 99.3% elevmin 99.3% elevmax 99.3% elevavg s_fld_haz_ar · FEMA NFHL 0.1% fldzone 0.0% zonesubty 0.1% firmdate 0.1% firmid supplemented · derived / other pipelines 100% parcelstate 100% parcelzip 100% section 100% qtrsection 100% range 100% plssdesc 72.6% ownerlist lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear usecode imprvalue landvalue agvalue taxacres calcarea saleamt saledate ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelstate parcelzip legaldesc township section qtrsection range plssdesc firmid firmdate fldzone zonesubty elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist publish.parcel_layer columns not fed by these sources (43) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxdistrict, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms halfbaths, fullbaths, totalvalue, parcelcity, 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 PARCEL 19 mapped · 17 transformed · 36 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL pin parcel_number land_use_code non_farm_building farm_dwelling farm_building non_farm_land farm_homesite farm_land acreage net_sale_price sale_date owner_name_1 owner_name_2 address address_2 billing_city billing_state billing_zip_code site_address_1 site_address_2 legal_description_1 legal_description_2 legal_description_3 legal_description_4 township_name geom entid dbtype mslink point_type label_class txt_angle condoid globalid parcelid objectid_1 property_class township_code tax_code gross_acreage mineral owner_occupied_exemption f1977_value senior_citizen_exemption home_improvement_exemption hie_year city_state zip_code sale_exist_y_n grantee document_number senior_assmnt_freeze veterans_exemption parcel_status subdivision_number home_owner_exemption_flag senior_citizen_flag senior_assessment_flag lending_code billing_name billing_address_1 billing_address_2 disabeled_veteran_exemption disabeled_veteran_exemption_fla fraternal_freeze_exemption fraternal_freeze_exemption_flag special_ownr_occupied_exemption special_ownr_occupied_exempti_1 historic_freeze_exemption historic_freeze_exemption_flag ntrl_disaster_exemption ntrl_disaster_exemption_flag returning_veteran_exemption returning_veteran_exemption_fla veteran_freeze_exemption veteran_freeze_exemption_flag disabled_person_exemption disabled_person_exemption_flag location parcelid nullif(btrim(pin), '')::text parcelid2 usecode nullif(btrim(land_use_code), '')::text imprvalue case when COALESCE(non_farm_building, 0) = 0 and COALESCE(farm_… landvalue case when COALESCE(non_farm_land, 0) = 0 and COALESCE(farm_home… agvalue case when COALESCE(farm_land, 0) = 0 then NULL::text else farm_… taxacres case when acreage is null or acreage = 0 then NULL::text else a… saleamt case when net_sale_price is null or net_sale_price = 0 then NUL… saledate case when sale_date is null or sale_date = 0 then NULL::text el… ownername nullif( concat_ws('; ', nullif(btrim(owner_name_1), ''), nullif… owneraddr nullif( concat_ws('; ', nullif(btrim(address), ''), nullif(btri… ownercity nullif(btrim(billing_city), '')::text ownerstate nullif(btrim(billing_state), '')::text ownerzip case when billing_zip_code is null or billing_zip_code = 0 then… parceladdr nullif( coalesce( nullif(btrim(site_address_1), ''), nullif(btr… legaldesc nullif( concat_ws(' ', nullif(btrim(legal_description_1), ''), … township nullif(btrim(township_name), '')::text geom extras ( json_build_object( 'entid', entid::text, 'dbtype', dbtype::te… not present in source — filled with NULL (36) taxacctnum, taxyear, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths totalvalue, parcelcity, parcelstate, parcelzip, section, qtrsection, range, plssdesc, book, page, block, lot, updated, sourceurl, taxdistrict parentid, heatfuel, fireplaces, heating, cooling, foundation, roofcover, siding

Neighboring counties

Parcel data for counties bordering Washington County:

Frequently asked questions

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

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

How many parcels are in Washington County, IL?

The current dataset contains 22,236 parcel records for Washington County, IL, each with its boundary geometry and assessor attributes.

What is the FIPS code for Washington County, IL?

The FIPS code for Washington County, IL is 17189.

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

Each Washington County, IL 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, IL parcel data free?

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

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated