Snakes and spiders in Del Norte County, California
Del Norte County, home of Crescent City, has 8 snake and 4 spider species on record, from 539 licensed snake and 114 spider records. Venomous species here: the western rattlesnake.
Are there venomous snakes or spiders in Del Norte County?
Yes. The western rattlesnake: 2 licensed records, 0% of all California records of it.
What snakes are in Del Norte County?
In all, 8 snake species are on the Del Norte County list. The most recorded are the northwestern garter snake (197), the common garter snake (165) and the western terrestrial garter snake (130). Del Norte County holds more than half of all California records of the northwestern garter snake.
| # | Species | Records | Share of California records |
|---|---|---|---|
| 1 | Northwestern garter snake Thamnophis ordinoides | 197 | 88% |
| 2 | Common garter snake Thamnophis sirtalis | 165 | 3% |
| 3 | Western terrestrial garter snake Thamnophis elegans | 130 | 1% |
| 4 | Aquatic garter snake Thamnophis atratus | 18 | 0% |
| 5 | Western aquatic garter snake Thamnophis couchii | 10 | 0% |
| 6 | Eastern racer Coluber constrictor | 6 | 0% |
| 7 | Ring-necked snake Diadophis punctatus | 2 | 0% |
| 8 | Western rattlesnake venomous Crotalus oreganus | 2 | 0% |
What spiders are in Del Norte County?
In all, 4 spider species are on the Del Norte County list. The most recorded are Trogloraptor marchingtoni (10), the goldenrod crab spider (9) and the garden spider (2). Del Norte County holds more than half of all California records of Trogloraptor marchingtoni.
| # | Species | Records | Share of California records |
|---|---|---|---|
| 1 | Trogloraptor marchingtoni | 10 | 100% |
| 2 | Goldenrod crab spider Misumena vatia | 9 | 4% |
| 3 | Garden spider Araneus diadematus | 2 | 0% |
| 4 | Johnson jumper Phidippus johnsoni | 1 | 0% |
What stands out in Del Norte County
Species for which Del Norte County holds a large share of all California records: the northwestern garter snake, 88% (197 of 223).
Common in California, not on the Del Norte County list
Among the snakes most recorded across California, these do not reach the county list: the gopher snake (7,188 statewide), the California kingsnake (2,675 statewide), the sidewinder (1,923 statewide), the two-striped garter snake (1,620 statewide), the western shovel-nosed snake (1,482 statewide) and the glossy snake (1,425 statewide). Few records here can mean the species is rare in the county, or that few people have looked.
Del Norte County among California counties
By licensed snake records Del Norte County ranks 28th of 58 California counties with any.
Other California counties with their own page: San Diego County, Lassen County, Shasta County, Riverside County, San Bernardino County, Humboldt County, Sonoma County and San Mateo County.
The whole state: venomous species in California, all snakes, all spiders.
GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.