Snakes
California kingsnake care guide
Lampropeltis californiae
Hardy, active and food-motivated, including the black kingsnake forms. Kingsnakes eat other snakes — always house alone.
Terrestrial — floor space first
New to reptiles? Check your keeper level first →California kingsnake enclosure size
Terrestrial — floor space first. An adult california kingsnake should live in at least 36" L × 18" W × 18" H; we build toward 48" L × 24" W × 24" H (4 × 2 × 2 ft, roughly 8 sq ft of floor and about a 120-gallon glass equivalent).
- Hatchling / baby
- 18" L × 12" W × 12" H recommended · min 12" L × 12" W × 12" H
- Juvenile
- 30" L × 18" W × 18" H recommended · min 24" L × 12" W × 12" H
- Adult
- 48" L × 24" W × 24" H recommended · min 36" L × 18" W × 18" H
Temperature and heating
Overhead heat (halogen, deep heat projector or radiant panel) on a thermostat, creating a warm-to-cool gradient.
- Basking / warm surface
- 88–92°F surface
- Warm side (ambient)
- 82–86°F
- Cool side (ambient)
- 72–78°F
- Night
- No lower than 65°F
Lighting and UVB
UVB: Low-level UVB (ShadeDweller / T5 6%) is beneficial but not strictly required. Run lights on a 12 hours on, 12 hours off photoperiod, on a timer, and replace UVB bulbs on the manufacturer's schedule even while they still emit visible light.
Humidity
Target 40–60%. Large water bowl on the cool side and a humid hide for shedding.
Substrate and depth
Aspen, cypress mulch or a soil/sand mix. Depth: 3–4 in.
Diet and feeding
Appropriately sized frozen-thawed rodents — every 5–7 days for juveniles, every 10–14 days for adults.
Enclosure tips and furnishing
- Hides on both the warm and cool sides
- Clean water available at all times
- Clutter — cork, leaf litter, plants — for cover
Build list
- Enclosure at adult size — Buy for the adult footprint to avoid repeated upgrades.
- Digital thermostat — Every heat source must run through a thermostat — unregulated heat burns animals.
- Two digital probe thermometers + hygrometer — Read the warm side, cool side and humidity directly.
California kingsnake FAQ
How big should an adult California kingsnake enclosure be?
At least 36" L × 18" W × 18" H, and we recommend building to 48" L × 24" W × 24" H — about 4 × 2 × 2 ft, or a 120-gallon glass equivalent. Terrestrial — floor space first.
What temperatures does a California kingsnake need?
Basking or warm surface 88–92°F surface, warm side 82–86°F, cool side 72–78°F, night No lower than 65°F. Overhead heat (halogen, deep heat projector or radiant panel) on a thermostat, creating a warm-to-cool gradient.
Does a California kingsnake need UVB?
Low-level UVB (ShadeDweller / T5 6%) is beneficial but not strictly required. Photoperiod: 12 hours on, 12 hours off.
What humidity does a California kingsnake need?
40–60%. Large water bowl on the cool side and a humid hide for shedding.
What substrate is best for a California kingsnake?
Aspen, cypress mulch or a soil/sand mix, at a depth of 3–4 in.
How big does a California kingsnake enclosure need to be for a hatchling?
Hatchling / baby: 18" L × 12" W × 12" H recommended, minimum 12" L × 12" W × 12" H. Scale up to the adult footprint as the animal grows.
Sources
Put this guide to work
Apply these targets to your own california kingsnake record, then log feedings, sheds and weights against them.