| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1693213 | IL | Lake | Waukegan, near intersection Glen Rock Ave. & Washington St. | 2001 | 04040002 | Pike-Root | unknown |
| 1693214 | IL | Lake | Waukegan, near intersection Glen Rock Ave. & Washington St. | 1998 | 04040002 | Pike-Root | unknown |
| 1693588 | IL | Lake | Waukegan dates collected: 22 May 2003, 24 July 2003, 2 October 2003 | 2003 | 04040002 | Pike-Root | unknown |
| 1899121 | IL | Cook | Lake Michigan, at Chicago, IL | 2016 | 04040002 | Pike-Root | |
| 1899194 | IL | Cook | Lake Michigan, at Chicago, IL | 2017 | 04040002 | Pike-Root | |
| 1899199 | IL | Cook | Lake Michigan, at Chicago, IL | 2017 | 04040002 | Pike-Root | |
| 1900737 | IL | Cook | Lake Michigan, at Chicago, IL | 2019 | 04040002 | Pike-Root | |
| 1900900 | IL | Cook | Lake Michigan, at Chicago, IL | 2018 | 04040002 | Pike-Root | |
| 1901192 | IL | Cook | Lake Michigan, at Chicago, IL | 2018 | 04040002 | Pike-Root | |
Citation for this information:
U.S. Geological Survey, 2026,
Oncorhynchus mykiss: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 6/6/2026