11 Types of Snakes in Washington
Yes, Washington is home to roughly 15 species of snakes, with the most common being garter snakes, gopher snakes, and the venomous northern Pacific rattlesnake. Start your ID efforts in dry, rocky areas east of the Cascades during spring and summer for the best odds of a sighting.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 6, 2026.
- 8
- species recorded
- May, June, April
- peak months
Verified species, source iNaturalist
11 types of snakes recorded in Washington
11 snake species have a verified observation record in Washington across snakes (suborder Serpentes), each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.
1
2
3
4
5
6
7
8
9
10
11
Plus 3 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations. Photos by iNaturalist observers, reused under the licence each observer chose.
Real sighting data, source iNaturalist
18,953 verified observations on iNaturalist of snake have been recorded in Washington, most often in May, June, April.
When snake are recorded in Washington
Yes, Washington is home to roughly 15 species of snakes, with the most common being garter snakes, gopher snakes, and the venomous northern Pacific rattlesnake. Start your ID efforts in dry, rocky areas east of the Cascades during spring and summer for the best odds of a sighting.
What Types of Snakes Are Found in Washington?
Washington hosts about 15 snake species. The most widespread are the common garter snake, western terrestrial garter snake, and the gopher snake. You'll also find the northwestern garter snake, rubber boa, and the northern Pacific rattlesnake in the eastern parts. For a full species breakdown, check out oursnake hub.
How Can You Identify the Most Common Snakes in Washington?
Focus on pattern and scale features. Garter snakes have three light stripes running the length of their body. Gopher snakes have a blotched pattern similar to a rattlesnake but lack a rattle and have a narrow head. The northern Pacific rattlesnake has a broad triangular head, vertical pupils, and a rattle at the tail. Start with stripe vs. blotch to narrow it down.
Where in Washington Do You Usually See Snakes First?
Your best chance is east of the Cascades in dry, open habitats: sagebrush flats, rocky slopes, and near agricultural fields. West-side snakes are more common in forest clearings, meadows, and along stream banks. Start with the Columbia Basin and the lower elevations of the Okanogan region. For more Washington wildlife tips, visit ourstate hub.
See ourstate animal guidefor the next step.
When Is the Best Season for Snake Sightings in Washington?
Snakes emerge in early spring (April) and remain active through October. Peak activity is on warm days between 70°F and 85°F, especially after a rain. Early morning and late afternoon in late spring and early summer give you the best odds.
Are There Venomous Snakes in Washington?
The only venomous snake is the northern Pacific rattlesnake. It's found east of the Cascades, especially in dry, rocky areas. It has a heavy body, distinct rattle, and a diamond-shaped head. Non-venomous lookalikes like gopher snakes often mimic its pattern but lack the rattle and have a narrower head. Learn more about safe identification on oursnake page.
How Do You Tell a Gopher Snake from a Rattlesnake?
Gopher snakes are often mistaken for rattlesnakes because they flatten their heads and hiss. Key differences: rattlesnakes have a thick body, a rattle, vertical pupils, and a heat-sensing pit between eye and nostril. Gopher snakes have round pupils, no rattle, and a narrower head. If you see a snake with blotches but no rattle, it's almost certainly a gopher snake.
Where to Find Washington Snake-Themed T-Shirts and Gear
After a day of snake spotting, show off your interest with apparel from Easy Street Markets. These designs are perfect for anyone who appreciates Washington's reptiles.
Rattlesnake Graphic T-Shirt
A bold design featuring a coiled rattlesnake silhouette. Great for fans of the state's only venomous species.Check Price and Availability
Green Viper Snake T-Shirt
A vibrant viper graphic that stands out in your wardrobe. Soft fabric and durable print.Check Price and Availability
Retro Cute Snake T-Shirt
A playful cartoon snake in a vintage style. A conversation starter for herpetology lovers.Check Price and Availability
Snake T-Shirt
A simple, clean snake print for everyday wear. Comfortable and true-to-size.Check Price and Availability
Browse our fullsnake t-shirt collectionfor more designs.
Frequently Asked Questions About Snakes in Washington
**Are there water moccasins in Washington?** No, water moccasins are not found in Washington. The only venomous snake is the northern Pacific rattlesnake.
**What should I do if I get bitten by a rattlesnake?** Stay calm, call 911, and immobilize the bitten limb. Do not cut or suck the wound.
**Can I keep a native snake as a pet?** Washington requires a permit for most native reptiles, and it's best to leave them in the wild.
**Do snakes climb trees in Washington?** Yes, garter snakes and rubber boas sometimes climb low shrubs, but most species stay on the ground.
See ourtour planning ideasfor the next step.
Gear and field guides
Frequently asked questions
What Types of Snakes Are Found in Washington?+
Washington hosts about 15 snake species. The most widespread are the common garter snake, western terrestrial garter snake, and the gopher snake. You'll also find the northwestern garter snake, rubber boa, and the northern Pacific rattlesnake in the eastern parts. For a full species breakdown, check out oursnake hub.
How Can You Identify the Most Common Snakes in Washington?+
Focus on pattern and scale features. Garter snakes have three light stripes running the length of their body. Gopher snakes have a blotched pattern similar to a rattlesnake but lack a rattle and have a narrow head. The northern Pacific rattlesnake has a broad triangular head, vertical pupils, and a rattle at the tail. Start with stripe vs. blotch to narrow it down.
Where in Washington Do You Usually See Snakes First?+
Your best chance is east of the Cascades in dry, open habitats: sagebrush flats, rocky slopes, and near agricultural fields. West-side snakes are more common in forest clearings, meadows, and along stream banks. Start with the Columbia Basin and the lower elevations of the Okanogan region. For more Washington wildlife tips, visit ourstate hub. See ourstate animal guidefor the next step.
When Is the Best Season for Snake Sightings in Washington?+
Snakes emerge in early spring (April) and remain active through October. Peak activity is on warm days between 70°F and 85°F, especially after a rain. Early morning and late afternoon in late spring and early summer give you the best odds.
Are There Venomous Snakes in Washington?+
The only venomous snake is the northern Pacific rattlesnake. It's found east of the Cascades, especially in dry, rocky areas. It has a heavy body, distinct rattle, and a diamond-shaped head. Non-venomous lookalikes like gopher snakes often mimic its pattern but lack the rattle and have a narrower head. Learn more about safe identification on oursnake page.
How Do You Tell a Gopher Snake from a Rattlesnake?+
Gopher snakes are often mistaken for rattlesnakes because they flatten their heads and hiss. Key differences: rattlesnakes have a thick body, a rattle, vertical pupils, and a heat-sensing pit between eye and nostril. Gopher snakes have round pupils, no rattle, and a narrower head. If you see a snake with blotches but no rattle, it's almost certainly a gopher snake.
Keep exploring
More places to see snake
More wildlife in Washington