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McDonough County, IL Parcels & GIS Data

McDonough County, IL parcel data: 18,328 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes McDonough County, Illinois parcel data covering 18,328 property records.

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

McDonough County is a county in the U.S. state of Illinois. According to the 2020 census, it had a population of 27,238. Its county seat is Macomb, which is also the home of Western Illinois University.

FIPS 17109

Official county website: http://www.outfitters.com/illinois/mcdonough

The FIPS code for McDonough County is 17109.

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Attribute coverage

McDonough County contains 18,328 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%18,328
parcelid99.9%18,318
parcelid2<0.1%8
ogparcelid99.9%18,318
ogparcelid2<0.1%1
parentid<0.1%0
stackid<0.1%0
geoid100%18,328
statefp100%18,328
countyfp100%18,328
countyname100%18,328
cousubfp100%18,328
cousubname100%18,328
tractce100%18,328
tractname100%18,328
taxacctnum99.6%18,249
taxyear<0.1%1
taxdistrict99.6%18,247
usecode99.6%18,249
usedesc<0.1%1
zoningcode38.5%7,056
zoningdesc<0.1%0
numbldgs<0.1%0
numunits<0.1%0
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue<0.1%1
landvalue<0.1%1
agvalue<0.1%1
totalvalue<0.1%1
taxacres99.7%18,275
calcarea100%18,328
saleamt<0.1%0
saledate<0.1%0
ownertype0.1%11
ownername99.6%18,257
owneraddr99.6%18,247
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr66.3%12,152
parcelcity<0.1%3
parcelstate100%18,328
parcelzip100%18,328
legaldesc99.6%18,249
township100%18,328
section100%18,328
qtrsection100%18,328
range100%18,328
plssdesc100%18,328
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype0.3%47
accesstype1.2%219
iucnclass0.9%160
placename4.9%906
placetype4.9%892
firmid<0.1%0
firmdate<0.1%0
fldzone<0.1%0
zonesubty<0.1%0
staticbfe<0.1%0
elevmin95.1%17,439
elevmax95.1%17,439
elevavg95.1%17,439
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
naicscode3.7%684
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated38.5%7,065
centroidx100%18,328
centroidy100%18,328
surfpointx100%18,328
surfpointy100%18,328
geom100%18,328
extras37.9%6,938
ownerlist0.1%11
placefp<0.1%0
zoningurl<0.1%0
lbcsactivity95.4%17,492
lbcsfunction95.4%17,491
lbcstype95.4%17,490
lbcscharacter95.4%17,492
lbcsownership99.6%18,257
sourceurl99.9%18,317

Schema mapping

How source columns from the acquired McDonough 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 — McDonough County, Illinois (17109) 1 entity · 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 ZONING zone_code geom zoningcode 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% taxyear 38.5% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 95.1% elevmin 95.1% elevmax 95.1% elevavg supplemented · derived / other pipelines 100% parcelid 100% ogparcelid 100% taxacctnum 100% taxdistrict 100% usecode 100% taxacres 100% ownername 100% owneraddr 66.3% parceladdr 100% parcelstate 100% parcelzip 100% legaldesc 100% township 100% section 100% qtrsection 100% range 100% plssdesc 95.4% lbcsactivity 95.4% lbcsfunction 95.4% lbcstype 95.4% lbcscharacter 100% lbcsownership 100% sourceurl lrid parcelid ogparcelid geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxyear taxdistrict usecode zoningcode taxacres calcarea ownername owneraddr parceladdr parcelstate parcelzip legaldesc township section qtrsection range plssdesc elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras lbcsactivity lbcsfunction lbcstype lbcscharacter lbcsownership sourceurl publish.parcel_layer columns not fed by these sources (56) — empty or below 50% fill in this county parcelid2, ogparcelid2, parentid, stackid, usedesc, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, ownertype, ownercity, ownerstate, ownerzip, parcelcity, book, page block, lot, parceltype, accesstype, iucnclass, placename, placetype, firmid, firmdate, fldzone, zonesubty, staticbfe, fireplaces, heating heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, ownerlist, placefp zoningurl ZONING 3 mapped · 1 transformed · 7 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ZONING zone_code geom zoningcode geom extras json_build_object() not present in source — filled with NULL (7) zoningdesc, zoningtype, ordinance, setbacks, restrictions, notes, sourceurl

Neighboring counties

Parcel data for counties bordering McDonough County:

Frequently asked questions

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

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

How many parcels are in McDonough County, IL?

The current dataset contains 18,328 parcel records for McDonough County, IL, each with its boundary geometry and assessor attributes.

What is the FIPS code for McDonough County, IL?

The FIPS code for McDonough County, IL is 17109.

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

Each McDonough 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 McDonough County, IL parcel data free?

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

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated