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Clark County, IL Parcels & GIS Data

Clark County, IL parcel data: 14,560 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Clark County, Illinois parcel data covering 14,560 property records.

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

Clark County is a county located in the southeastern part of the U.S. state of Illinois, along the Indiana state line. As of the 2020 census, the population was 15,455. Its county seat is Marshall.

FIPS 17023

Official county website: http://www.clarkcountyil.org

The FIPS code for Clark County is 17023.

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Attribute coverage

Clark County contains 14,560 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%14,560
parcelid100%14,560
parcelid2<0.1%0
ogparcelid100%14,560
ogparcelid2100%14,560
parentid<0.1%0
stackid<0.1%0
geoid100%14,560
statefp100%14,560
countyfp100%14,560
countyname100%14,560
cousubfp100%14,560
cousubname100%14,560
tractce100%14,560
tractname100%14,560
taxacctnum<0.1%0
taxyear<0.1%0
taxdistrict<0.1%0
usecode<0.1%0
usedesc<0.1%0
zoningcode<0.1%0
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
imprvalue96.9%14,102
landvalue96.9%14,102
agvalue96.9%14,102
totalvalue96.9%14,102
taxacres99.4%14,470
calcarea100%14,560
saleamt<0.1%0
saledate<0.1%0
ownertype99.7%14,512
ownername99.7%14,512
owneraddr<0.1%0
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr100%14,560
parcelcity<0.1%0
parcelstate100%14,560
parcelzip100%14,560
legaldesc<0.1%0
township100%14,560
section100%14,560
qtrsection100%14,560
range100%14,560
plssdesc100%14,560
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype0.1%16
accesstype0.9%138
iucnclass0.7%101
placename4.1%591
placetype4.0%582
firmid100%14,560
firmdate100%14,560
fldzone100%14,560
zonesubty96.0%13,983
staticbfe<0.1%6
elevmin95.7%13,937
elevmax95.7%13,937
elevavg95.7%13,937
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
naicscode11.3%1,640
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated99.7%14,513
centroidx100%14,560
centroidy100%14,560
surfpointx100%14,560
surfpointy100%14,560
geom100%14,560
extras100%14,560
ownerlist75.2%10,952
placefp33.9%4,930
zoningurl<0.1%0
lbcsactivity2.1%304
lbcsfunction2.1%302
lbcstype1.9%279
lbcscharacter97.4%14,183
lbcsownership99.7%14,513
sourceurl<0.1%0

Schema mapping

How source columns from the acquired Clark 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 — Clark County, Illinois (17023) 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 PARCEL parcelid parcelid2 totalvalue taxacres ownername parceladdr geom parentid 2 cols ⇢ parcelid parcelid2 totalvalue taxacres ownername parceladdr geom parentid extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 95.7% elevmin 95.7% elevmax 95.7% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 96.0% zonesubty 0.0% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 96.9% imprvalue 96.9% landvalue 96.9% agvalue 100% parcelstate 100% parcelzip 100% township 100% section 100% qtrsection 100% range 100% plssdesc 75.2% ownerlist 97.4% lbcscharacter 100% lbcsownership lrid parcelid parcelid2 ogparcelid ogparcelid2 parentid geoid statefp countyfp countyname cousubfp cousubname tractce tractname imprvalue landvalue agvalue totalvalue taxacres calcarea ownertype ownername parceladdr parcelstate parcelzip township section qtrsection range plssdesc firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist lbcscharacter lbcsownership publish.parcel_layer columns not fed by these sources (53) — empty or below 50% fill in this county stackid, taxacctnum, taxyear, taxdistrict, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft bedrooms, halfbaths, fullbaths, saleamt, saledate, owneraddr, ownercity, ownerstate, ownerzip, parcelcity, legaldesc, 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, 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

Neighboring counties

Parcel data for counties bordering Clark County:

Frequently asked questions

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

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

How many parcels are in Clark County, IL?

The current dataset contains 14,560 parcel records for Clark County, IL, each with its boundary geometry and assessor attributes.

What is the FIPS code for Clark County, IL?

The FIPS code for Clark County, IL is 17023.

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

Each Clark 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 Clark County, IL parcel data free?

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

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated