WILDLIFE ENCYCLOPEDIA – SNAKES
Non-Venomous Snakes in Southern California – Yards, Crawlspaces & Walls
Southern California has a long list of snakes that are not rattlesnakes – but that doesn’t make it any more relaxing when one slides across your patio or disappears under the house. Most of these snakes are actually following rodent activity and cover, not trying to pick a fight with people.
This entry covers common non-venomous snakes we see around homes – Pacific gopher snakes, kingsnakes, racers, garter snakes and a few smaller, secretive species – how they move through yards, crawlspaces and block walls, and why rodent control and structural sealing matter as much as the snake removal itself.
Fast Facts: Non-Venomous Snakes
- Common species: Pacific gopher snakes, California kingsnakes, garter snakes, racers, coachwhips.
- Hot spots: Yards with rodents, heavy ground cover, rock walls and open crawlspace access.
- Big clues: Shed skins, tracks in dust, snakes basking near walls or slipping under slabs.
- Key driver: Rodent activity – gophers, ground squirrels, rats and mice.
- Control: Identification, safe capture, then exclusion and habitat changes.
Most non-venomous snakes want rodents, shade and hiding cover – not contact with people. They just happen to like the same structures we build.
Common Non-Venomous Snakes Around SoCal Homes
Every neighborhood is a little different, but we repeatedly see the same snake families in Southern California residential areas:
Pacific Gopher Snakes
Thick-bodied snakes that flatten their heads, hiss and sometimes buzz their tails in dry leaves – which gets them mistaken for rattlesnakes all the time. They’re usually working gopher and ground squirrel burrows or hunting along block walls.
California Kingsnakes
Banded snakes that move through yards, rock borders, planters and structures looking for rodents, lizards and sometimes other snakes. They’ll take full advantage of clutter and stacked materials.
Racers & Coachwhips
Very fast, alert snakes that cruise open ground, hillsides and wall lines. Homeowners usually see them as a blur crossing a path or driveway.
Garter Snakes & Secretive Species
Garter snakes stick close to water, lawns and moist areas. Smaller species like ring-necked and sharp-tailed snakes spend more time under boards, tarps and debris, and turn up when people start cleaning up.
Signs of Snake Activity on Your Property
- Snakes regularly seen moving along the same wall, fence or planter line.
- Shed skins caught in fence gaps, crawlspace openings or utility areas.
- Tracks in dusty areas under decks, in garages or in the crawlspace.
- Dogs or cats focusing on the same gap, step or corner repeatedly.
- Snakes disappearing under the home, into retaining walls or under concrete.
In many jobs, the bigger “tell” is the rodent sign we find during inspection – burrows, droppings and runs that practically invite snakes to use your yard as a highway.
Snake Travel Routes – How They Move Through Yards & Structures
Snakes use structure and cover like a map. They rarely cruise across open gravel for fun when they can travel along:
- Block walls and fence lines.
- Dense ground cover, planter beds and rock borders.
- Edges of concrete slabs and walkways.
- Burrow systems from gophers and ground squirrels.
- Openings into crawlspaces and under steps.
Once they find a safe path that consistently leads to food, they tend to use that route again and again. That’s why inspections focus so much on edges, seams and gaps.
Snakes & Rodent Activity – They Go Hand in Hand
Where there are rodents, there are usually predators somewhere nearby. Most non-venomous snakes are dialed in on:
- Active gopher mounds and ground squirrel burrows.
- Rat and mouse runs along fences and foundations.
- Areas with spilled bird seed, chicken feed or pet food.
If your property has heavy rodent pressure, knocking down snake sightings without addressing the rodents is usually a short-term win at best. In real life, rodent control, exclusion and habitat changes are part of every serious snake plan.
Crawlspaces, Wall Voids & Slabs – Hidden Snake Hangouts
Snakes don’t just move across the surface. They also run the “subway system” underneath structures:
- Crawlspaces with open vents and gaps in access doors.
- Voids along block walls and railroad-tie retaining walls.
- Spaces under concrete steps, AC pads and walkways.
- Utility chases and gaps where foundation and framing meet.
If we see signs that snakes are moving under the home, we may recommend a crawlspace inspection and cleanup and targeted exclusion and repair to cut off those routes as much as realistically possible.
When to Call a Snake Removal Specialist
- You’re seeing snakes in play areas, dog runs or high-traffic walkways.
- Snakes are entering under the house, steps or retaining walls.
- You’ve got visible gopher or ground squirrel problems plus snakes.
- You are not sure if the snake is non-venomous or a rattlesnake.
- Family members are anxious and want a clear plan, not guesses.
Snake FAQ – Wildlife Encyclopedia
Do non-venomous snakes mean rattlesnakes are nearby?
Not automatically. Non-venomous snakes and rattlesnakes both follow food, cover and temperature, so they can share the same general environment. Seeing a gopher snake does not prove rattlesnakes are present, but the habitat that attracted the gopher snake might also work for rattlers.
Will removing snakes fix my rodent problem?
No. Snakes are there because rodents are already established. Removing snakes without addressing gophers, ground squirrels, rats and mice just removes one of the predators. Long-term control requires a rodent plan and structural work.
Can I safely move a non-venomous snake myself?
From a safety and legal standpoint, the best answer is: let a pro handle it. Misidentification, bites, and falls while trying to pin or grab snakes are common homeowner injuries. Licensed handlers use proper tools and know how to work snakes without creating more risk.