Illinois
Snakes in Macoupin County
10 species have been documented here, and none are venomous.
Every snake recorded in Macoupin County

Common Watersnake
Nerodia sipedon
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Prairie Kingsnake
Lampropeltis calligaster
Harmless

North American Racer
Coluber constrictor
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Gray Ratsnake
Pantherophis spiloides
Harmless

Red-bellied Snake
Storeria occipitomaculata
Harmless

Smooth Earthsnake
Virginia valeriae
Harmless

Western Ratsnake
Pantherophis obsoletus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Macoupin County: FAQ
- Are there venomous snakes in Macoupin County, Illinois?
- No venomous snakes have verified records in Macoupin County, Illinois. Every snake recorded here is harmless to humans, though any snake may bite defensively if handled.
- How many snake species live in Macoupin County, Illinois?
- 10 snake species have verified records in Macoupin County, Illinois.
- What is the most commonly seen snake in Macoupin County, Illinois?
- The Common Watersnake is the most frequently reported snake in Macoupin County, Illinois, based on verified wildlife observations.