Free Parcel Data

Illinois Cook County

May 2021 snapshot

GEOID17031
Archive

Machine verified 5 years old

Parcels
708,073
Fields
43
Completeness
81%
Download size
660 MB

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Available formats

  • gpkg GeoPackage One SQLite file, full-length field names, real CRS metadata, no sidecar files to lose.
  • shp Shapefile The format every desktop GIS reads without being asked, and the one most county assessors still publish.

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What the checks found

708,073 parcel features, 43 attributes, 81% weighted attribute fill. Reprojected to WGS 84 (EPSG:4326); geometries repaired where invalid. Attribute fill rates measured on a 200,000-feature sample. Point-in-time snapshot. No cross-county schema normalisation.

Columns in this file

FieldTypeFilledExample values
PARCEL_ID OFTString 100% 14183200401001, 14183220270000, 14183220260000
SITUS OFTString 100% 2034 W WARNER AVE, 2035 W WARNER AVE, 2037 W WARNER AVE
ADDR_NUMBE OFTString 98% 2034, 2035, 2037
STREET_PRE OFTString 41% W, W, W
STREET_NAM OFTString 100% WARNER, WARNER, WARNER
STREET_SUF OFTString 0% E, E, E
STREET_TYP OFTString 98% Ave, Ave, Ave
SITUS_CITY OFTString 87% CHICAGO, CHICAGO, CHICAGO
SITUS_ZIP OFTString 87% 60618, 60618, 60618
ADDR_SEC_U OFTString 0% LOT, LOT, LOT
ADDR_SE_01 OFTString 0% 6, 7, 8
OWNER OFTString 94% WILLIAMSON AMANDA, ZAMBITO NICHOLAS R, MONTI ADAM
TRANS_DATE OFTDate 66% 2012-06-01, 2016-11-01, 2010-12-01
BLDG_SQFT OFTInteger64 100% 0, 1819, 2066
NGH_CODE OFTString 100% 42, 42, 42
LAND_USE_C OFTString 100% 299, 295, 295
LAND_US_01 OFTString 93% Residential, Residential, Residential
LAND_COVER OFTString 100% {"23": 1, "24": 3}, {"24": 1}, {"24": 2}
MUNI_ID OFTInteger64 100% 428803, 428803, 428803
SCHOOL_DIS OFTInteger64 100% 1709930, 1709930, 1709930
MKT_VAL_LA OFTReal 100% 4275.0, 3888.0, 3816.0
MKT_VAL_BL OFTReal 100% 32190.0, 56154.0, 57278.0
MKT_VAL_TO OFTReal 100% 36465.0, 60042.0, 61094.0
ZIP_CODE OFTString 100% 60618, 60618, 60618
BUILDINGS OFTInteger64 100% 3, 1, 0
MAIL_ADDRE OFTString 94% 2034 W WARNER #101, CHICAGO, IL 60618, 2035 W WARNER AVE, CHICAGO, IL 60618, 2037 W WARNER AVE, CHICAGO, IL 60618
OWNER_OCCU OFTString 100% T, T, T
USPS_RESID OFTString 100% ?, T, T
CENSUS_TRA OFTInteger64 100% 50200, 50200, 50200
CENSUS_BLK OFTInteger 100% 2, 2, 2
CENSUS_BLO OFTInteger 100% 2019, 2034, 2034
AREA_METER OFTReal 100% 1088.2833355529, 77.9939564161, 527.0270740581
FLD_ZONE OFTString 6% {A}, {A}, {A}
ZONE_SUBTY OFTString 6% {NULL}, {NULL}, {NULL}
PLACE_GNIS OFTInteger64 96% 428803, 428803, 428803
ALT_ID_1 OFTString 100% 1418320040, 1418322027, 1418322026
ELEVATION OFTString 99% {"max": 243.625, "min": 243.625, "mean": 243.625}, {"max": 243.625, "min": 243.625, "mean": 243.625}, {"max": 243.625, "min": 243.625, "mean": 243.625}
ROBUST_ID OFTString 100% AABCh8rNAifSbHRz, AABCh8v_iq33lH0m, AABCh6dj18nydhRy
CALC_ACREA OFTReal 100% 0.268925695, 0.0192730866, 0.1302336603
COUNTY_NAM OFTString 100% Cook, Cook, Cook
COUNTY_FIP OFTInteger64 100% 17031, 17031, 17031
STATE_ABBR OFTString 100% IL, IL, IL
CTY_ROW_ID OFTInteger64 100% 1218231, 1218260, 1218259