Cook County
MapServerAPN + ADDR
https://gis12.cookcountyil.gov/traditional/rest/services/CookViewer3Parcels/MapServer/0Endpoint
FeatureServer / MapServer
Paste a county's ArcGIS REST URL — FeatureServer or MapServer — and the tool inspects the layer, learns its fields, and queries property records the way the assessor stored them. APN, address, owner name, zoning, assessed value. Browser-side. No proxy.
Direct URLs for 8 Illinois county parcel layers. Copy any URL into ArcGIS, Postman, or QGIS. Or hit "Use it" to load the endpoint into the search tool below. Each card links to that county's atlas page with field documentation and a working sample query.
https://gis12.cookcountyil.gov/traditional/rest/services/CookViewer3Parcels/MapServer/0https://services7.arcgis.com/hEXJrPwm89CLXBYe/arcgis/rest/services/DeKalbIL_Parcels/FeatureServer/0https://gis.dupageco.org/arcgis/rest/services/DuPage_County_IL/ParcelsWithRealEstateCC/MapServer/0https://gistech.countyofkane.org/arcgis/rest/services/KanePINList/MapServer/0https://maps.lakecountyil.gov/arcgis/rest/services/GISMapping/WABParcels/MapServer/12https://services1.arcgis.com/6iYC5AXXYapRVNzl/arcgis/rest/services/McHenry_County_TaxParcels/FeatureServer/0https://arcgispublicmap.co.st-clair.il.us/server/rest/services/SCC_parcel_map_data/MapServer/29https://gis.willcountyillinois.com/server/rest/services/Basemap/Parcels_21/MapServer/0No public ArcGIS REST endpoint. WinGIS (Winnebago County GIS partner) runs a token-gated or viewer-only system.
Not in Illinois? Browse the full atlas of US county parcel APIs →
/FeatureServer/0 or /MapServer/0An ArcGIS Feature Layer is a web service that provides access to geographic data stored on an ArcGIS Server. Most U.S. counties publish parcel, zoning, and land use data through ArcGIS REST services, making them queryable via standard web URLs. These services expose structured data including property boundaries, owner names, mailing addresses, assessed values, zoning designations, and more.
Feature Layers follow Esri's REST API specification, which means any tool that speaks HTTP can query them. This tool sends queries directly from your browser to the county's GIS server—no middleman, no data storage.
Most county GIS departments publish their data through an ArcGIS Server. Here's how to find the URL:
hub.arcgis.com and search for your county's parcel dataThe URL typically looks like: https://gis.countyname.gov/arcgis/rest/services/Parcels/FeatureServer/0
While field names vary by county, most parcel layers include some combination of:
No. All queries are sent directly from your browser to the county's ArcGIS server. We don't intercept, log, or store any search data or results.
Not all counties publish ArcGIS REST services publicly. Some require authentication or only offer data through web map viewers. Try searching for your county on ArcGIS Hub or contact your county GIS department directly.
Both work! MapServer layers support query operations just like FeatureServer layers. Just make sure the URL ends with a layer number (e.g., /MapServer/0).
Some county GIS servers don't allow cross-origin requests from web browsers. In that case, you may need to use the county's own web map viewer or download the data as a file.
Start at your county's GIS portal — typically maps.<county>.gov or gis.<county>.gov. Browse to "Services" or the "REST Services Directory" link, then find the parcel layer. The URL ends in /FeatureServer/0 or /MapServer/0. The UrbanKit Parcel Atlas lists 117 already-verified endpoints across 39 states; if your county is indexed, use "Open in Parcel Lookup" on the atlas card to skip the discovery step entirely.
Some county GIS servers don't include the CORS headers that browsers require for cross-origin fetches. The endpoint works in Postman or curl but not directly in this browser tool. Workarounds: use a CORS proxy (cors-anywhere or your own), run a small backend that fetches on your behalf, or download parcels via curl and import the GeoJSON. The tool stays browser-only so we can't proxy on your behalf.
Not directly — Cook County's public REST layer (CookViewer3Parcels/MapServer/0) only exposes PIN10, PIN14_dash, and street_address. Owner name is not indexed in the public layer. For Cook owner searches, use cookcountypropertyinfo.com. Adjacent Illinois counties — Kane (TaxName), DuPage (BILLNAME), DeKalb (Owner), Lake (taxpayer_name), McHenry (Owner), St. Clair (owner) — do expose owner-equivalent fields and work in this tool.
Both expose the same /query operation this tool uses. FeatureServer is the newer ArcGIS service type and supports editing as well as read; MapServer is older and read-only. For copy-the-URL searches by APN, address, or owner name, they work identically. The tool auto-detects which type you've pasted and adjusts the query accordingly.
No. The tool calls the county's public ArcGIS REST endpoint directly from your browser. Nothing is uploaded to UrbanKit; no account or login is required. The only friction is whether the county's server allows browser-origin fetches (the CORS question above) and whether the layer requires authentication — a few counties such as Winnebago Illinois do, but most do not.
Related reading: Find My Parcel Number by Address · How to Find a Property Owner by Address · Querying parcel data by owner name · Find an ArcGIS parcel layer URL.