Mammals of San Diego, California
The mammals most often spotted near San Diego, ranked by recent research-grade observations.
Most-observed mammals near San Diego
California Sea Lion
Zalophus californianus
9,787 observations
California Ground Squirrel
Otospermophilus beecheyi
6,955 observations
Desert Cottontail
Sylvilagus audubonii
5,317 observations
Harbor Seal
Phoca vitulina
3,879 observations
Eastern Fox Squirrel
Sciurus niger
2,258 observations
Coyote
Canis latrans
2,033 observations
Common Bottlenose Dolphin
Tursiops truncatus
1,599 observations
Common Raccoon
Procyon lotor
1,448 observations
Mule Deer
Odocoileus hemionus
1,257 observations
Common Dolphin
Delphinus delphis
943 observations
Virginia Opossum
Didelphis virginiana
851 observations
Bobcat
Lynx rufus
812 observations
Striped Skunk
Mephitis mephitis
693 observations
Domestic Cat
Felis catus
450 observations
Grey Whale
Eschrichtius robustus
328 observations
Brush Rabbit
Sylvilagus bachmani
293 observations
Gray Fox
Urocyon cinereoargenteus
270 observations
Black Rat
Rattus rattus
226 observations
Black-tailed Jackrabbit
Lepus californicus
212 observations
Blue Whale
Balaenoptera musculus
194 observations
Humpback Whale
Megaptera novaeangliae
137 observations
House Mouse
Mus musculus
110 observations
Big-eared Woodrat
Neotoma macrotis
105 observations · iNaturalist
Fin Whale
Balaenoptera physalus
95 observations
Risso's Dolphin
Grampus griseus
92 observations
Pacific White-sided Dolphin
Aethalodelphis obliquidens
75 observations · iNaturalist
California Vole
Microtus californicus
64 observations
Northern Elephant Seal
Mirounga angustirostris
57 observations
Botta's Pocket Gopher
Megascapheus bottae
53 observations · iNaturalist
Northern Baja Deer Mouse
Peromyscus fraterculus
45 observations · iNaturalist
Mountain Lion
Puma concolor
42 observations
San Diego Pocket Mouse
Chaetodipus fallax
41 observations · iNaturalist
Mexican Free-tailed Bat
Tadarida brasiliensis
40 observations
Western Harvest Mouse
Reithrodontomys megalotis
38 observations
Long-tailed Weasel
Neogale frenata
38 observations · iNaturalist
Brown Rat
Rattus norvegicus
37 observations
Canyon Bat
Parastrellus hesperus
37 observations
Guadalupe Fur Seal
Arctocephalus townsendi
35 observations · iNaturalist
Gambel's Deer Mouse
Peromyscus gambelii
35 observations · iNaturalist
Bryant's Woodrat
Neotoma bryanti
34 observations · iNaturalist
Southern California Pocket Gopher
Megascapheus nigricans
34 observations · iNaturalist
Dulzura Kangaroo Rat
Dipodomys simulans
30 observations · iNaturalist
Common Minke Whale
Balaenoptera acutorostrata
29 observations
Western Spotted Skunk
Spilogale gracilis
27 observations
Western red bat
Lasiurus frantzii
25 observations
Domestic Dog
Canis familiaris
22 observations · iNaturalist
Yuma Myotis
Myotis yumanensis
19 observations
Orca
Orcinus orca
19 observations
Merriam's Chipmunk
Neotamias merriami
17 observations · iNaturalist
Big Brown Bat
Eptesicus fuscus
16 observations