Mammals of New Jersey
The mammals most often spotted in New Jersey, ranked by recent research-grade observations.
99,955
recent observations
50
species listed
50
mammals
Naturalists have logged 99,955 research-grade observations across the 50 most-recorded species in New Jersey. The most frequently seen is the Eastern Gray Squirrel, with 28,975 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
28,975 observations
White-tailed Deer
Odocoileus virginianus
19,891 observations
Eastern Cottontail
Sylvilagus floridanus
8,498 observations
Eastern Chipmunk
Tamias striatus
6,089 observations
Red Fox
Vulpes vulpes
5,712 observations
Groundhog
Marmota monax
5,406 observations
Common Raccoon
Procyon lotor
5,043 observations
Domestic Cat
Felis catus
2,410 observations
Brown Rat
Rattus norvegicus
2,340 observations
American Beaver
Castor canadensis
2,138 observations
American Black Bear
Ursus americanus
2,129 observations
Virginia Opossum
Didelphis virginiana
1,331 observations
Northern Short-tailed Shrew
Blarina brevicauda
1,319 observations
Striped Skunk
Mephitis mephitis
985 observations
Muskrat
Ondatra zibethicus
917 observations
Coyote
Canis latrans
883 observations
Harbor Seal
Phoca vitulina
494 observations
American Mink
Neogale vison
472 observations
Eastern Red Bat
Lasiurus borealis
471 observations
White-footed Mouse
Peromyscus leucopus
456 observations
American Red Squirrel
Tamiasciurus hudsonicus
456 observations
Tamanend's Bottlenose Dolphin
Tursiops erebennus
454 observations · iNaturalist
Bobcat
Lynx rufus
387 observations
North American Porcupine
Erethizon dorsatum
322 observations
House Mouse
Mus musculus
317 observations
Big Brown Bat
Eptesicus fuscus
254 observations
Humpback Whale
Megaptera novaeangliae
243 observations
North American River Otter
Lontra canadensis
231 observations
Eastern Meadow Vole
Microtus pennsylvanicus
217 observations
Southern Flying Squirrel
Glaucomys volans
213 observations
Silver-haired Bat
Lasionycteris noctivagans
156 observations
Grey Seal
Halichoerus grypus
119 observations
Eastern Mole
Scalopus aquaticus
117 observations
Gray Fox
Urocyon cinereoargenteus
108 observations
Masked Shrew
Sorex cinereus
67 observations
Star-nosed Mole
Condylura cristata
47 observations
Long-tailed Weasel
Neogale frenata
36 observations · iNaturalist
Woodland Vole
Microtus pinetorum
33 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
21 observations · iNaturalist
Common Dolphin
Delphinus delphis
20 observations
Fisher
Pekania pennanti
20 observations
Harp Seal
Pagophilus groenlandicus
19 observations · iNaturalist
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
Mammals in nearby places
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