Venomous animals in Michigan
None of them is in the most dangerous class, but bites and stings from several still need medical care.
- 2 medically significant
Where they turn up in Michigan
- None recorded
- 1 species
- 2
- 3 to 4
- 5 or more
Venomous snakes in Michigan
Venomous snakes in Michigan: map, photos and look-alikes
Venomous spiders in Michigan
Venomous spiders in Michigan: map, photos and look-alikes
When they are out
- Venomous snakes
- Venomous spiders
Recorded, but not living here
- Rare records Timber rattlesnake 1 open record, latest 1912
- Rare records Brown recluse 1 open record, latest 2013
A rare record means someone found or reported the animal once or a few times, but there is no known population. Many are strays, pets or hitchhikers in cargo.
Quick answers for Michigan
- Lives here Rattlesnakes
- Not here Copperheads
- Not here Cottonmouths
- Rare records Brown recluses
- Lives here Black widows
- Not here Tarantulas
Questions
How many venomous snakes live in Michigan?
1 species: Eastern massasauga.
Are there brown recluse spiders in Michigan?
Only as rare records. GBIF holds 1 open record of the brown recluse from Michigan, the latest from 2013, but there is no known population.
Are there scorpions in Michigan?
No. There are no open records of native scorpions from the state.
When are venomous animals most active in Michigan?
Most open records from Michigan fall in July to September. Records follow when people are outdoors too, so treat this as a guide, not a rule.
What should I do after a bite or sting?
Call 911 for any venomous snakebite or a severe reaction. For spider bites and scorpion stings, call Poison Control at 1-800-222-1222, free and open 24/7.