Checked
County dataHousing & Development
Lot
Published by Cook County Clerk / Map Department · Updated 12/15/2015 · Yearly
- Last updated
- 12/15/2015
- First published 12/15/2015
- Update frequency
- Yearly
- Formats
- 4
- CSV, JSON, GeoJSON
- Coverage
- Cook County, Illinois
- County in Illinois
About this dataset
The feature class LOT contains lot polygons as shown on the tax map.
Files and access
Links open the official government source
- CSV downloaddatacatalog.cookcountyil.govCSV
- JSON (SODA API)datacatalog.cookcountyil.govJSON
- GeoJSONdatacatalog.cookcountyil.govGeoJSON
- XMLdatacatalog.cookcountyil.govXML
API endpoint: https://datacatalog.cookcountyil.gov/resource/rh7w-4dqv.json
Links open outside websites we do not control.
Frequently asked questions
- Who publishes Lot?
- Cook County Clerk / Map Department, part of Cook County, Illinois, publishes this dataset on Cook County Open Data.
- How often is it updated?
- The publisher lists the update frequency as yearly. The last update was on 12/15/2015.
- How do I download it?
- It is available as CSV, JSON, GeoJSON, XML. Use the links in Files and access, which open the official government source.
Similar data from other publishers
- LotCity of Baton Rouge · City-Parish Planning CommissionPolygon geometry with attributes displaying the recorded boundaries or lot lines of property in East Baton Rouge Parish, Louisiana. MetadataCSVJSONGeoJSONXMLUpdated 10/06/2026Weekly
- Lot ProfileCity of Baton Rouge · Department of Information ServicesPolygon geometry with complete attributes displaying the recorded boundaries or lot lines of property in East Baton Rouge Parish, Louisiana.CSVJSONGeoJSONXMLUpdated 10/07/2026Weekly
- Tax LotsDistrict of Columbia · Department of BuildingsTax lots are not determined by survey and are therefore not official lots in the same way record lots are. These lots are normally numbered between 800 and 1999 within a square to differentiate them from record lots on the property tax maps. When a tax lot is CSVGeoJSONShapefileKML+1Updated 10/24/2026
- Tax LotsDistrict of Columbia · Department of BuildingsTax lots are not determined by survey and are therefore not official lots in the same way record lots are. These lots are normally numbered between 800 and 1999 within a square to differentiate them from record lots on the property tax maps. When a tax lot is CSVZIPGeoJSONKML+1Updated 10/24/2026
Where this catalog comes from
- Data.gov CatalogU.S. General Services Administration
- State and local open data portalsSocrata Discovery API
- State and city CKAN portalsCalifornia, Virginia, Boston, Houston and more
- Government ArcGIS Hub sitesCity and county GIS data
Catalog checked 10/24/2026
We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.
Source: Cook County Open Data and Data.gov · Last updated 10/24/2026 · Listing only; the data stays with the publisher
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