RockHoundR

Where to Find Geodes in Illinois

Illinois has 10 mapped collecting spots that report geodes, spread across 2 counties. The largest share sits in Hancock County with 9 spots. 10 of the spots are on land mapped as publicly accessible.

Open the full map

Every geode spot we track in Illinois

Standout geode spots in Illinois

Hand-picked from the full list above, with the reason each one earns a trip.

Best counties for geodes in Illinois

Ranked by the number of mapped geode spots. County links open the full rockhounding page for that county.

Before you go

Read the geodes identification guide so you know what a keeper looks like in the field: Geode in the encyclopedia.

Geodes in Illinois FAQ

Where can you find geodes in Illinois?+
The mapped spots concentrate in Hancock County and Pike County. Every spot on this page is on the map, and each spot's own page has its coordinates and access notes.
How many geode spots are mapped in Illinois?+
10 spots across 2 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.
Is it legal to collect geodes in Illinois?+
Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 10 of the 10 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find geodes

More minerals to hunt in Illinois

Hunt geodes in Illinois with the map in your pocket

RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.

Download on the App StoreGet it on Google Play