Mammals of New Jersey
The mammals most often spotted in New Jersey, ranked by recent research-grade observations.
Most-observed mammals in New Jersey
Eastern Gray Squirrel
Sciurus carolinensis
28,471 observations
White-tailed Deer
Odocoileus virginianus
19,131 observations
Eastern Cottontail
Sylvilagus floridanus
8,050 observations
Eastern Chipmunk
Tamias striatus
5,866 observations
Red Fox
Vulpes vulpes
5,578 observations
Groundhog
Marmota monax
5,209 observations
Common Raccoon
Procyon lotor
4,926 observations
Domestic Cat
Felis catus
2,356 observations
Brown Rat
Rattus norvegicus
2,287 observations
American Beaver
Castor canadensis
2,097 observations
American Black Bear
Ursus americanus
2,006 observations
Virginia Opossum
Didelphis virginiana
1,311 observations
Northern Short-tailed Shrew
Blarina brevicauda
1,290 observations
Striped Skunk
Mephitis mephitis
956 observations
Muskrat
Ondatra zibethicus
905 observations
Coyote
Canis latrans
859 observations
Harbor Seal
Phoca vitulina
491 observations
Eastern Red Bat
Lasiurus borealis
463 observations
American Mink
Neogale vison
462 observations
White-footed Mouse
Peromyscus leucopus
431 observations
American Red Squirrel
Tamiasciurus hudsonicus
431 observations
Tamanend's Bottlenose Dolphin
Tursiops erebennus
420 observations · iNaturalist
Bobcat
Lynx rufus
382 observations
North American Porcupine
Erethizon dorsatum
314 observations
House Mouse
Mus musculus
313 observations
Big Brown Bat
Eptesicus fuscus
243 observations
Humpback Whale
Megaptera novaeangliae
233 observations
North American River Otter
Lontra canadensis
225 observations
Southern Flying Squirrel
Glaucomys volans
208 observations
Eastern Meadow Vole
Microtus pennsylvanicus
204 observations
Silver-haired Bat
Lasionycteris noctivagans
155 observations
Grey Seal
Halichoerus grypus
119 observations
Eastern Mole
Scalopus aquaticus
113 observations
Gray Fox
Urocyon cinereoargenteus
107 observations
Masked Shrew
Sorex cinereus
64 observations
Star-nosed Mole
Condylura cristata
46 observations
Long-tailed Weasel
Neogale frenata
33 observations · iNaturalist
Northern Meadow Jumping Mouse
Zapus hudsonius
31 observations
Eastern Deermouse
Peromyscus maniculatus
31 observations
Northern Hoary Bat
Lasiurus cinereus
24 observations
Woodland Vole
Microtus pinetorum
24 observations
European Rabbit
Oryctolagus cuniculus
21 observations · iNaturalist
Common Dolphin
Delphinus delphis
20 observations
Harp Seal
Pagophilus groenlandicus
19 observations · iNaturalist
Fisher
Pekania pennanti
18 observations
Common Minke Whale
Balaenoptera acutorostrata
15 observations
Hairy-tailed Mole
Parascalops breweri
12 observations
Tri-coloured Bat
Perimyotis subflavus
10 observations
American Ermine
Mustela richardsonii
9 observations · iNaturalist
Harbour Porpoise
Phocoena phocoena
8 observations