28 Types of Squirrels in California
Yes, several squirrel species call California home. The most widespread are the eastern gray squirrel, western gray squirrel, and California ground squirrel. Start by checking oak woodlands and parks near water sources. Look for bushy tails, ear tufts, or ground burrows to tell them apart.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 6, 2026.
Verified species, source iNaturalist
28 types of squirrels recorded in California
28 squirrel species have a verified observation record in California across the squirrel family (Sciuridae), each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.
2 of the 28 shown are recorded as introduced to California rather than native, and 5 are endemic to California, found here and effectively nowhere else.
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Also recorded in California
| # | Species | Scientific name | Records |
|---|---|---|---|
| 13 | Sonoma ChipmunkEndemicNeotamias sonomae | Neotamias sonomae | 1,179 |
| 14 | Nelson's Antelope SquirrelEndemicAmmospermophilus nelsoni | Ammospermophilus nelsoni | 695 |
| 15 | Humboldt's Flying SquirrelNativeGlaucomys oregonensis | Glaucomys oregonensis | 675 |
| 16 | Long-eared ChipmunkNativeNeotamias quadrimaculatus | Neotamias quadrimaculatus | 568 |
| 17 | Yellow-pine ChipmunkNativeNeotamias amoenus | Neotamias amoenus | 438 |
| 18 | Least ChipmunkNativeNeotamias minimus | Neotamias minimus | 350 |
| 19 | Shadow ChipmunkNativeNeotamias senex | Neotamias senex | 301 |
| 20 | Round-tailed Ground SquirrelNativeXerospermophilus tereticaudus | Xerospermophilus tereticaudus | 289 |
| 21 | California ChipmunkNativeNeotamias obscurus | Neotamias obscurus | 177 |
| 22 | Yellow-cheeked ChipmunkEndemicNeotamias ochrogenys | Neotamias ochrogenys | 166 |
| 23 | Alpine ChipmunkEndemicNeotamias alpinus | Neotamias alpinus | 144 |
| 24 | Siskiyou ChipmunkNativeNeotamias siskiyou | Neotamias siskiyou | 121 |
| 25 | Uinta ChipmunkNativeNeotamias umbrinus | Neotamias umbrinus | 49 |
| 26 | Mohave Ground SquirrelEndemicXerospermophilus mohavensis | Xerospermophilus mohavensis | 48 |
| 27 | Panamint ChipmunkNativeNeotamias panamintinus | Neotamias panamintinus | 45 |
| 28 | Rock SquirrelNativeOtospermophilus variegatus | Otospermophilus variegatus | 29 |
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.
Yes, several squirrel species call California home. The most widespread are the eastern gray squirrel, western gray squirrel, and California ground squirrel. Start by checking oak woodlands and parks near water sources. Look for bushy tails, ear tufts, or ground burrows to tell them apart.
1. What types of squirrels live in California?
California hosts three main tree squirrel species: the **eastern gray squirrel**, **western gray squirrel**, and **Douglas squirrel**. Ground squirrels include the **California ground squirrel** and the **white-tailed antelope squirrel**. Each occupies a different habitat and elevation range, which is your first clue for identification.
2. How can you tell the species apart by appearance?
Focus on color, tail shape, and ear tufts. Eastern gray squirrels have a silver-gray body with white belly and a large bushy tail. Western gray squirrels are darker gray with a blackish tail tip and no ear tufts. Douglas squirrels are smaller with reddish-brown fur and white eye rings. Ground squirrels have shorter, less bushy tails and often stripes on the back. For more details, see oursquirrel identification hub.
3. Where in California are you most likely to see each type?
Eastern gray squirrels thrive in coastal and central valley parks and suburbs. Western gray squirrels prefer oak woodlands in the coastal ranges and Sierra foothills. California ground squirrels are common in open grasslands and along roadsides statewide. The best odds are in areas with mature oaks, especially near water. Check ourCalifornia wildlife pagefor regional hotspots.
See ourstate animal guidefor the next step.
4. What is the best season for squirrel sightings?
Squirrels are active year-round, but the best viewing is in **early morning and late afternoon**. Spring and fall are prime because cooler temperatures bring them out to forage. During summer, they rest in midday heat. Winter offers good sightings during mild spells, especially in oak woodlands where acorns are stored.
5. What behaviors help confirm a squirrel's species?
Tree squirrels are agile climbers and often seen gathering nuts or building leaf nests (dreys). Ground squirrels spend more time on the ground and retreat to burrows. The Douglas squirrel is notably vocal and territorial, chattering loudly from branches. Watching for these habits can seal the ID.
6. How do you separate tree squirrels from ground squirrels?
Tail is the quickest tell: tree squirrels have long, bushy tails held over the back, while ground squirrels have shorter, less fluffy tails. Also, ground squirrels often have stripes on the back or sides (e.g., California ground squirrel has a mottled coat with small white spots). Habitat: tree squirrels prefer woodland canopy; ground squirrels are in open, arid areas.
7. What gear and gifts can enhance your squirrel watching?
After a good day of spotting, you might want to remember your sightings with a wildlife shirt. Check out these options:
Wild Wings Wildlife T-Shirt Gray Squirrel Unisex Graphic Tee For Men & Women
A front-printed gray squirrel design on a quality cotton tee. Perfect for casual outings.Check Price and Availability
Squirrel Lover Vintage T-Shirt
A budget-friendly shirt with a retro squirrel graphic.Check Price and Availability
Squirrel and Laptop Graphic T-Shirt
A fun design for those who enjoy modern squirrel humor.Check Price and Availability
Browse more options in ourwildlife shirt collection.
Squirrel Shirt. Squirrel Gift. Squirrel Clothing. Funny Squirrel Shirt. Squirrels Shirt. Squirrel Tshirt. Squirrel Lover Gift. #OS5686
A strong match for this wildlife page and an easy next click after the guide.Check Price and Availability
8. Frequently asked questions about California squirrel identification
**Are there flying squirrels in California?** Yes, the northern flying squirrel lives in conifer forests of the Sierra Nevada and coastal ranges, but they are nocturnal and rarely seen.
**What is the largest squirrel in California?** The western gray squirrel is the largest tree squirrel, up to 60 cm including tail.
**Can you find black squirrels in California?** Black morphs of the eastern gray squirrel occur occasionally in urban areas, but they are not a separate species.
**Do California ground squirrels hibernate?** Some populations in colder areas enter torpor, but many remain active year-round in mild climates.
See ourtour planning ideasfor the next step.
Gear and field guides
Frequently asked questions
1. What types of squirrels live in California?+
California hosts three main tree squirrel species: the **eastern gray squirrel**, **western gray squirrel**, and **Douglas squirrel**. Ground squirrels include the **California ground squirrel** and the **white-tailed antelope squirrel**. Each occupies a different habitat and elevation range, which is your first clue for identification.
2. How can you tell the species apart by appearance?+
Focus on color, tail shape, and ear tufts. Eastern gray squirrels have a silver-gray body with white belly and a large bushy tail. Western gray squirrels are darker gray with a blackish tail tip and no ear tufts. Douglas squirrels are smaller with reddish-brown fur and white eye rings. Ground squirrels have shorter, less bushy tails and often stripes on the back. For more details, see oursquirrel identification hub.
3. Where in California are you most likely to see each type?+
Eastern gray squirrels thrive in coastal and central valley parks and suburbs. Western gray squirrels prefer oak woodlands in the coastal ranges and Sierra foothills. California ground squirrels are common in open grasslands and along roadsides statewide. The best odds are in areas with mature oaks, especially near water. Check ourCalifornia wildlife pagefor regional hotspots. See ourstate animal guidefor the next step.
4. What is the best season for squirrel sightings?+
Squirrels are active year-round, but the best viewing is in **early morning and late afternoon**. Spring and fall are prime because cooler temperatures bring them out to forage. During summer, they rest in midday heat. Winter offers good sightings during mild spells, especially in oak woodlands where acorns are stored.
5. What behaviors help confirm a squirrel's species?+
Tree squirrels are agile climbers and often seen gathering nuts or building leaf nests (dreys). Ground squirrels spend more time on the ground and retreat to burrows. The Douglas squirrel is notably vocal and territorial, chattering loudly from branches. Watching for these habits can seal the ID.
6. How do you separate tree squirrels from ground squirrels?+
Tail is the quickest tell: tree squirrels have long, bushy tails held over the back, while ground squirrels have shorter, less fluffy tails. Also, ground squirrels often have stripes on the back or sides (e.g., California ground squirrel has a mottled coat with small white spots). Habitat: tree squirrels prefer woodland canopy; ground squirrels are in open, arid areas.
7. What gear and gifts can enhance your squirrel watching?+
After a good day of spotting, you might want to remember your sightings with a wildlife shirt. Check out these options: ### Wild Wings Wildlife T-Shirt Gray Squirrel Unisex Graphic Tee For Men & Women A front-printed gray squirrel design on a quality cotton tee. Perfect for casual outings.Check Price and Availability ### Squirrel Lover Vintage T-Shirt A budget-friendly shirt with a retro squirrel graphic.Check Price and Availability ### Squirrel and Laptop Graphic T-Shirt A fun design for those who enjoy modern squirrel humor.Check Price and Availability Browse more options in ourwildlife shirt collection. ### Squirrel Shirt. Squirrel Gift. Squirrel Clothing. Funny Squirrel Shirt. Squirrels Shirt. Squirrel Tshirt. Squirrel Lover Gift. #OS5686 A strong match for this wildlife page and an easy next click after the guide.Check Price and Availability
Keep exploring
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