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Iroquois County, IL Parcels & GIS Data

Iroquois County, IL parcel data: 28,240 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Iroquois County, Illinois parcel data covering 28,240 property records.

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

Iroquois County is a county located in the northeast part of the U.S. state of Illinois. According to the 2020 United States Census, it has a population of 27,077. It is the only county in the United States named Iroquois.

FIPS 17075

Official county website: http://www.co.iroquois.il.us

The FIPS code for Iroquois County is 17075.

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Attribute coverage

Iroquois County contains 28,240 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%28,240
parcelid100%28,240
parcelid2<0.1%0
ogparcelid100%28,240
ogparcelid2<0.1%0
parentid<0.1%0
stackid<0.1%0
geoid100%28,240
statefp100%28,240
countyfp100%28,240
countyname100%28,240
cousubfp100%28,240
cousubname100%28,240
tractce100%28,240
tractname100%28,240
taxacctnum<0.1%0
taxyear<0.1%0
taxdistrict<0.1%0
usecode98.1%27,695
usedesc<0.1%0
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs48.5%13,697
numunits8.2%2,327
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue8.2%2,327
landvalue56.9%16,062
agvalue40.6%11,472
totalvalue<0.1%0
taxacres98.1%27,695
calcarea100%28,240
saleamt40.1%11,318
saledate42.8%12,087
ownertype98.1%27,692
ownername98.1%27,695
owneraddr<0.1%0
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr98.4%27,794
parcelcity53.4%15,091
parcelstate100%28,240
parcelzip100%28,240
legaldesc98.1%27,695
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype1.1%316
accesstype1.1%316
iucnclass0.8%224
placename3.7%1,034
placetype3.6%1,014
firmid100%28,240
firmdate100%28,240
fldzone100%28,240
zonesubty90.3%25,500
staticbfe<0.1%0
elevmin93.8%26,485
elevmax93.8%26,485
elevavg93.8%26,485
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
naicscode17.8%5,023
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated<0.1%0
centroidx100%28,240
centroidy100%28,240
surfpointx100%28,240
surfpointy100%28,240
geom100%28,240
extras100%28,240
lrversion100%28,240

Schema mapping

How source columns from the acquired Iroquois 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 — Iroquois County, Illinois (17075) 1 entity · most recent acquisition per entity · generated 2026-07-13 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 parcelnumber classcode farmbuildingassessment nonfarmlandassessment farmlandassessment acres lastsaleprice lastsaledate owner siteaddress legaldescription township geom 2 cols ⇢ parcelid usecode imprvalue landvalue agvalue taxacres saleamt saledate ownername 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 0.0% updated 100% lrversion geom · derived from geometry geom dem.us_1m · USGS 1m DEM 93.8% elevmin 93.8% elevmax 93.8% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 90.3% zonesubty 100% firmdate 100% firmid supplemented · derived / other pipelines 53.4% parcelcity 100% parcelstate 100% parcelzip lrid parcelid ogparcelid geoid statefp countyfp countyname cousubfp cousubname tractce tractname usecode imprvalue landvalue agvalue taxacres calcarea saleamt saledate ownertype ownername parceladdr parcelcity parcelstate parcelzip legaldesc township firmid firmdate fldzone zonesubty elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras lrversion publish.parcel_layer columns not fed by these sources (51) — empty or below 50% fill in this county parcelid2, ogparcelid2, parentid, stackid, taxacctnum, taxyear, taxdistrict, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, totalvalue, owneraddr, ownercity, ownerstate, ownerzip, section, qtrsection, range plssdesc, book, page, block, lot, parceltype, accesstype, iucnclass, placename, placetype, staticbfe, fireplaces, heating, heatfuel, cooling foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit PARCEL 13 mapped · 2 kept in extras · 41 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcelnumber classcode farmbuildingassessment nonfarmlandassessment farmlandassessment acres lastsaleprice lastsaledate owner siteaddress legaldescription township geom parcelid usecode imprvalue landvalue agvalue taxacres saleamt saledate ownername parceladdr legaldesc township geom extras · 2 source columns preserved as json lastassessmentdate, nonfarmbuildingassessment extras not present in source — filled with NULL (41) parcelid2, taxacctnum, taxyear, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, totalvalue, owneraddr, ownercity, ownerstate, ownerzip, parcelcity, parcelstate, parcelzip, section, qtrsection, range, plssdesc book, page, block, lot, updated, sourceurl, taxdistrict, parentid, fireplaces, heating, cooling, foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering Iroquois County:

On this page

Attribute coverageSchema mappingNeighboring countiesRelated