Illinois records
Western Ratsnake in Illinois
HarmlessPantherophis obsoletus

Yes. The Western Ratsnake has been recorded in 20 Illinois counties. It is non-venomous (harmless). Long-bodied with weakly keeled scales; blotched, striped, or solid depending on species.
Illinois counties with Western Ratsnake records
20 listedSee the full Western Ratsnake profile or all snakes in Illinois.