Venomous animals in Utah

Venomous species living here
114 venomous snakes, 2 venomous spiders, 3 scorpions, 1 large centipede, 1 venomous lizard

The ones that need the most respect: western rattlesnake, sidewinder, Mojave rattlesnake, speckled rattlesnake. A bite from any of them is a medical emergency.

Dangerous: 4Medically significant: 3Painful, rarely serious: 4
  • 4 dangerous
  • 3 medically significant
  • 4 painful, rarely serious
Venomous snakes
4
Venomous spiders
2
Scorpions
3
Centipedes
1
Venomous lizards
1
Open records
1,048
Counties with any record
26

Where they turn up in Utah

San Juan: Arizona bark scorpion, Black widow, Northern scorpion, Tarantula, Western rattlesnakeMorgan: Western rattlesnakeCache: Black widow, Western rattlesnakeDavis: Black widow, Northern scorpion, Tarantula, Western rattlesnakePiute: Western rattlesnakeUtah: Black widow, Northern scorpion, Tarantula, Western rattlesnakeSanpete: Black widow, Northern scorpion, Western rattlesnakeWayne: Northern scorpion, Western rattlesnakeEmery: Black widow, Northern scorpion, Tarantula, Western diamondback rattlesnake, Western rattlesnakeGarfield: Black widow, Northern scorpion, Tarantula, Tiger centipede, Western rattlesnakeBeaver: Black widow, Northern scorpion, Western rattlesnakeIron: Tarantula, Western rattlesnakeBox Elder: Black widow, Western rattlesnakeUintah: Northern scorpion, Western rattlesnakeWashington: Arizona bark scorpion, Black widow, Giant desert hairy scorpion, Gila monster, Mojave rattlesnake, Sidewinder, Speckled rattlesnake, Tarantula, Tiger centipede, Western rattlesnakeDuchesne: Western rattlesnakeJuab: Black widow, Western rattlesnakeMillard: Western rattlesnakeSevier: Northern scorpion, Western rattlesnakeTooele: Black widow, Northern scorpion, Western rattlesnakeCarbon: Black widow, Northern scorpion, Western rattlesnakeGrand: Black widow, Northern scorpion, Tiger centipede, Western rattlesnakeWasatch: Black widowSalt Lake: Black widow, Northern scorpion, Tarantula, Western diamondback rattlesnake, Western rattlesnakeWeber: Black widow, Tarantula, Western rattlesnakeKane: Arizona bark scorpion, Black widow, Mojave rattlesnake, Northern scorpion, Tarantula, Western rattlesnake
Number of venomous species with open GBIF records in each county. Blank counties often mean nobody has posted a record yet, not that nothing lives there.

Venomous snakes in Utah

Venomous snakes in Utah: map, photos and look-alikes

Venomous spiders in Utah

Venomous spiders in Utah: map, photos and look-alikes

Scorpions in Utah

Scorpions in Utah: map, photos and look-alikes

Centipedes in Utah

Centipedes in Utah: map, photos and look-alikes

Venomous lizards in Utah

When they are out

Jan: 4 records (venomous snake)JanFeb: 1 records (venomous snake)Feb: 1 records (spider)Feb: 1 records (scorpion)FebMar: 7 records (venomous snake)Mar: 2 records (spider)Mar: 2 records (scorpion)Mar: 1 records (large centipede)MarApr: 41 records (venomous snake)Apr: 9 records (spider)Apr: 5 records (scorpion)Apr: 1 records (venomous lizard)AprMay: 131 records (venomous snake)May: 11 records (spider)May: 8 records (scorpion)May: 1 records (large centipede)May: 5 records (venomous lizard)MayJun: 88 records (venomous snake)Jun: 16 records (spider)Jun: 4 records (scorpion)Jun: 1 records (large centipede)Jun: 3 records (venomous lizard)JunJul: 100 records (venomous snake)Jul: 32 records (spider)Jul: 10 records (scorpion)Jul: 1 records (venomous lizard)JulAug: 75 records (venomous snake)Aug: 54 records (spider)Aug: 9 records (scorpion)AugSep: 53 records (venomous snake)Sep: 53 records (spider)Sep: 3 records (scorpion)Sep: 1 records (large centipede)SepOct: 26 records (venomous snake)Oct: 35 records (spider)Oct: 2 records (scorpion)Oct: 1 records (large centipede)OctNov: 5 records (venomous snake)Nov: 9 records (spider)NovDec
Open records by month; most fall in May to August. People record animals when they are outdoors too, so winter looks quieter than it may be.

Recorded, but not living here

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.

Harmless look-alikes in Utah

Quick answers for Utah

Questions

How many venomous snakes live in Utah?

4 species: Western rattlesnake, Sidewinder, Mojave rattlesnake and Speckled rattlesnake.

Are there brown recluse spiders in Utah?

No. There are no open records of the brown recluse from Utah, and the state is outside its range.

Are there scorpions in Utah?

Yes: Arizona bark scorpion, Giant desert hairy scorpion and Northern scorpion.

When are venomous animals most active in Utah?

Most open records from Utah fall in May to August. 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.

Neighboring states