Venomous snakes in Washington
Venomous snakes living in Washington
1species
Western rattlesnake. A bite from the western rattlesnake is a medical emergency.
How to recognize them
Western rattlesnake Crotalus oreganus
- Brown, gray or olive with darker blotches down the back
- Blotches turn to bands toward the rattle
- Pale line from behind the eye to the jaw
Every venomous snake species known from the US is on this site.
Counties with records
- None recorded
- 1 species
- 2
- 3 to 4
- 5 or more
Active months
Harmless snakes people mistake for them
- Rattlesnake vs Gopher Snake Gopher snake: harmless
Quick answers
Questions
How many venomous snakes are in Washington?
1 species live in the state: Western rattlesnake.
Which venomous snakes in Washington are dangerous?
Western rattlesnake: a bite is a medical emergency.
When are venomous snakes most active in Washington?
Most open records fall in May to June, August.
Which harmless snakes get mistaken for venomous ones in Washington?
Gopher snake. See the side-by-side comparisons below.