Mammals of New Jersey
The mammals most often spotted in New Jersey, ranked by recent research-grade observations.
103,318
recent observations
50
species listed
50
mammals
Naturalists have logged 103,318 research-grade observations across the 50 most-recorded species in New Jersey. The most frequently seen is the Eastern Gray Squirrel, with 29,902 recorded sightings.
Rarer finds confirmed in New Jersey include Bobcat and Fisher - uncommon enough that a sighting is worth logging.
Most-observed mammals in New Jersey
Eastern Gray Squirrel
Sciurus carolinensis
29,902 observations
White-tailed Deer
Odocoileus virginianus
20,736 observations
Eastern Cottontail
Sylvilagus floridanus
8,765 observations
Eastern Chipmunk
Tamias striatus
6,287 observations
Red Fox
Vulpes vulpes
5,851 observations
Groundhog
Marmota monax
5,617 observations
Common Raccoon
Procyon lotor
5,139 observations
Domestic Cat
Felis catus
2,481 observations
Brown Rat
Rattus norvegicus
2,402 observations
American Black Bear
Ursus americanus
2,239 observations
American Beaver
Castor canadensis
2,235 observations
Virginia Opossum
Didelphis virginiana
1,368 observations
Northern Short-tailed Shrew
Blarina brevicauda
1,365 observations
Striped Skunk
Mephitis mephitis
1,019 observations
Muskrat
Ondatra zibethicus
924 observations
Coyote
Canis latrans
900 observations
Harbor Seal
Phoca vitulina
505 observations
Tamanend's Bottlenose Dolphin
Tursiops erebennus
485 observations
White-footed Mouse
Peromyscus leucopus
484 observations
Eastern Red Bat
Lasiurus borealis
482 observations
American Mink
Neogale vison
481 observations
American Red Squirrel
Tamiasciurus hudsonicus
476 observations
Bobcat
Lynx rufus
399 observations
North American Porcupine
Erethizon dorsatum
331 observations
House Mouse
Mus musculus
323 observations
Big Brown Bat
Eptesicus fuscus
259 observations
Humpback Whale
Megaptera novaeangliae
253 observations
North American River Otter
Lontra canadensis
241 observations
Eastern Meadow Vole
Microtus pennsylvanicus
225 observations
Southern Flying Squirrel
Glaucomys volans
222 observations
Silver-haired Bat
Lasionycteris noctivagans
156 observations
Grey Seal
Halichoerus grypus
123 observations
Eastern Mole
Scalopus aquaticus
121 observations
Gray Fox
Urocyon cinereoargenteus
111 observations
Masked Shrew
Sorex cinereus
68 observations
Star-nosed Mole
Condylura cristata
50 observations
Long-tailed Weasel
Neogale frenata
37 observations · iNaturalist
Woodland Vole
Microtus pinetorum
35 observations
Northern Meadow Jumping Mouse
Zapus hudsonius
32 observations
Eastern Deermouse
Peromyscus maniculatus
29 observations
Northern Hoary Bat
Lasiurus cinereus
24 observations
European Rabbit
Oryctolagus cuniculus
22 observations · iNaturalist
Common Dolphin
Delphinus delphis
20 observations
Fisher
Pekania pennanti
20 observations
Harp Seal
Pagophilus groenlandicus
19 observations
Common Minke Whale
Balaenoptera acutorostrata
15 observations
Hairy-tailed Mole
Parascalops breweri
12 observations
Tri-coloured Bat
Perimyotis subflavus
10 observations
North American Least Shrew
Cryptotis parvus
9 observations · iNaturalist
American Ermine
Mustela richardsonii
9 observations
Mammals in nearby places
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