Cook County, IL Parcels & GIS Data

Cook County, IL parcel data: 1,539,274 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Cook County, Illinois parcel data covering 1,539,274 property records.

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

Cook County is the most populous county in the U.S. state of Illinois and the second-most-populous county in the United States, after Los Angeles County, California. More than 40 percent of all residents of Illinois live within Cook County. As of 2020, the population was 5,275,541.

FIPS 17031

Official county website: http://www.cookcountygov.com

The FIPS code for Cook County is 17031.

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Attribute coverage

Cook County contains 1,539,274 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%1,539,274
parcelid99.9%1,537,613
parcelid299.9%1,537,609
ogparcelid99.9%1,537,613
ogparcelid299.9%1,537,613
parentid<0.1%0
stackid<0.1%0
geoid100%1,539,274
statefp100%1,539,274
countyfp100%1,539,274
countyname100%1,539,274
cousubfp100%1,539,274
cousubname100%1,539,274
tractce100%1,539,274
tractname100%1,539,274
taxacctnum<0.1%0
taxyear99.9%1,537,609
taxdistrict<0.1%0
usecode0.5%7,411
usedesc7.9%122,202
zoningcode51.4%791,543
zoningdesc49.5%762,198
numbldgs99.7%1,535,366
numunits99.9%1,537,599
yearbuilt99.9%1,537,587
numfloors84.5%1,300,404
bldgsqft92.1%1,417,444
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue99.9%1,537,587
landvalue99.9%1,537,587
agvalue76.8%1,182,439
totalvalue99.9%1,537,587
taxacres8.1%124,488
calcarea100%1,539,274
saleamt99.8%1,536,204
saledate26.9%413,722
ownertype99.9%1,537,760
ownername99.9%1,537,760
owneraddr8.1%124,398
ownercity8.1%124,355
ownerstate8.1%124,402
ownerzip8.1%124,338
parceladdr100%1,538,928
parcelcity99.9%1,537,573
parcelstate100%1,539,274
parcelzip100%1,539,273
legaldesc8.1%124,485
township91.5%1,408,328
section91.5%1,408,328
qtrsection<0.1%0
range91.5%1,408,328
plssdesc91.5%1,408,328
book1.5%23,687
page1.5%23,690
block5.4%83,393
lot7.1%108,551
parceltype1.1%16,716
accesstype1.1%16,716
iucnclass0.3%4,901
placename17.2%264,744
placetype16.7%257,677
firmid<0.1%0
firmdate<0.1%0
fldzone<0.1%0
zonesubty<0.1%0
staticbfe<0.1%0
elevmin100%1,539,274
elevmax100%1,539,274
elevavg100%1,539,274
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
naicscode4.8%73,943
frsid0.6%9,514
dfrurl0.6%9,514
caapermit0.6%9,514
cwapermit0.6%9,514
rcrapermit0.6%9,514
updated100%1,539,274
centroidx100%1,539,274
centroidy100%1,539,274
surfpointx100%1,539,274
surfpointy100%1,539,274
geom100%1,539,274
extras<0.1%4
lrversion100%1,539,274

Neighboring counties

Parcel data for counties bordering Cook County:

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