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Endangered and Threatened Species by County

Instructions for navigating the table:
  • The search box can be used to find keywords or specific species. Delete the entry in the search box and press enter to return to the original table.
  • The filter function can be used to filter the table by groups. Select the desired filter(s) and click on the "Filter Table" button.  Use the "Clear Filters" button to return to the original table.
  • The rows in the table can be clicked to view additional information.
  • A spreadsheet may be downloaded using the "Export to CSV" link (note, if the table is filtered, only those records will be exported).

County Scientific Name Common Name State Status Informal Taxonomy Last Observed # of Records

Last updated February 2026

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​Contact Information

Illinois Department of Natural Resources
The Division of Natural Heritage
One Natural Resources Way
Springfield, IL 62702-1271

217-782-6302

Illinois Department of Natural Resources

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