California records
Sierra Garter Snake in California
HarmlessThamnophis couchii

Yes. The Sierra Garter Snake has been recorded in 52 California counties. It is non-venomous (harmless). Slender body with three light stripes running the length of a darker back.
California counties with Sierra Garter Snake records
52 listed- Shasta
- Plumas
- Monterey
- Kern
- Tulare
- Siskiyou
- San Luis Obispo
- Nevada
- Fresno
- Lassen
- Tuolumne
- Sierra
- Humboldt
- Placer
- Butte
- El Dorado
- Trinity
- Solano
- Los Angeles
- Mariposa
- Riverside
- Tehama
- San Bernardino
- Madera
- Alameda
- Sonoma
- San Diego
- Alpine
- Calaveras
- Amador
- Inyo
- Contra Costa
- Yuba
- Santa Cruz
- Orange
- Mono
- Del Norte
- Ventura
- Santa Barbara
- Santa Clara
- San Mateo
- Marin
- San Joaquin
- Merced
- Mendocino
- Stanislaus
- San Francisco
- Sacramento
- Modoc
- Lake
- Kings
- Glenn
See the full Sierra Garter Snake profile or all snakes in California.