The administrative boundary of Iroquois County, a county in Illinois, the United States, covering 2,898.8 km². Get its polygon in one call, as GeoJSON, KML, WKT, GML or SVG.
About 28,700 people live in Iroquois County. Its 2,899 km² are 1.9% of Illinois.
Copy-paste calls for r1800375. One unit each with a free key; the low-detail polygon also works without one.
curl "https://geocodeai.dev/v1/boundaries/r1800375?detail=medium" \
-H "Authorization: Bearer $GEOCODE_API_KEY"curl -X POST "https://geocodeai.dev/v1/boundaries/r1800375/contains" \
-H "Authorization: Bearer $GEOCODE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"points":[[-87.8253,40.7432]]}'Every format and detail level below needs a free API key. Get a free API key
https://geocodeai.dev/v1/boundaries/r1800375.geojson?detail=mediumhttps://geocodeai.dev/v1/boundaries/r1800375.kml?detail=mediumhttps://geocodeai.dev/v1/boundaries/r1800375.wkt?detail=mediumhttps://geocodeai.dev/v1/boundaries/r1800375.svg?detail=mediumhttps://geocodeai.dev/v1/boundaries/r1800375.gml?detail=mediumEach export redirects to a permanent CDN file. Add ?detail=low|medium|high|full. Formats
Get the Iroquois County boundary (r1800375) from Geocode AI as GeoJSON and tell me which of my locations are inside it.With the MCP server or the Claude and Codex plugins.
Boundary data © OpenStreetMap contributors, ODbL. Need several boundaries as one zone, or a zone written in words?