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Common Garter Snake
Thamnophis sirtalis
10,930 observations
Common Watersnake
Nerodia sipedon
5,015 observations
Painted Turtle
Chrysemys picta
4,805 observations
Central Ratsnake
Pantherophis alleghaniensis
4,387 observations
Common Snapping Turtle
Chelydra serpentina
4,202 observations
Common Box Turtle
Terrapene carolina
4,157 observations
Pond Slider
Trachemys scripta
3,176 observations
DeKay's Brownsnake
Storeria dekayi
2,698 observations
Timber Rattlesnake
Crotalus horridus
2,574 observations
Ring-necked Snake
Diadophis punctatus
2,166 observations
Eastern Milksnake
Lampropeltis triangulum
1,971 observations
Wood Turtle
Glyptemys insculpta
1,259 observations
Red-bellied Snake
Storeria occipitomaculata
749 observations
Northern Map Turtle
Graptemys geographica
685 observations
Northern Red-bellied Cooter
Pseudemys rubriventris
684 observations
Common Five-lined Skink
Plestiodon fasciatus
653 observations
Eastern Copperhead
Agkistrodon contortrix
421 observations
North American Racer
Coluber constrictor
404 observations
Eastern Musk Turtle
Sternotherus odoratus
397 observations
Spiny Softshell
Apalone spinifera
357 observations
Short-headed Garter Snake
Thamnophis brachystoma
333 observations
Queensnake
Regina septemvittata
275 observations
Eastern Fence Lizard
Sceloporus undulatus
253 observations
Eastern Hognose Snake
Heterodon platirhinos
239 observations
Smooth Greensnake
Opheodrys vernalis
235 observations
Spotted Turtle
Clemmys guttata
118 observations
Common Ribbon Snake
Thamnophis saurita
102 observations
Coal Skink
Plestiodon anthracinus
54 observations
Brown Anole
Anolis sagrei
51 observations
Common Wormsnake
Carphophis amoenus
45 observations
Eastern Massasauga
Sistrurus catenatus
44 observations
Smooth Earthsnake
Virginia valeriae
37 observations
Italian Wall Lizard
Podarcis siculus
36 observations
Mediterranean House Gecko
Hemidactylus turcicus
31 observations
Broad-headed Skink
Plestiodon laticeps
27 observations
River Cooter
Pseudemys concinna
26 observations
Rough Greensnake
Opheodrys aestivus
25 observations
False Map Turtle
Graptemys pseudogeographica
11 observations
Three-toed Box Turtle
Terrapene triunguis
9 observations
Bog Turtle
Glyptemys muhlenbergii
6 observations
Green Anole
Anolis carolinensis
5 observations
Diamondback Terrapin
Malaclemys terrapin
5 observations
Red Cornsnake
Pantherophis guttatus
4 observations
Ornate Box Turtle
Terrapene ornata
3 observations
Afghan Tortoise
Testudo horsfieldii
2 observations
Common Wall Lizard
Podarcis muralis
2 observations
Ouachita Map Turtle
Graptemys ouachitensis
2 observations
American Alligator
Alligator mississippiensis
1 observations
Invasive
Ball Python
Python regius
1 observations
Gold Dust Day Gecko
Phelsuma laticauda
1 observations
Frequently Asked Questions
- The 10 most common reptiles in Pennsylvania are:
- Common Garter Snake (Thamnophis sirtalis)
- Common Watersnake (Nerodia sipedon)
- Painted Turtle (Chrysemys picta)
- Central Ratsnake (Pantherophis alleghaniensis)
- Common Snapping Turtle (Chelydra serpentina)
- Common Box Turtle (Terrapene carolina)
- Pond Slider (Trachemys scripta)
- DeKay's Brownsnake (Storeria dekayi)
- Timber Rattlesnake (Crotalus horridus)
- Ring-necked Snake (Diadophis punctatus)
- The most observed reptile in Pennsylvania is Common Garter Snake (Thamnophis sirtalis), with 10,930 recorded observations.
- Some of the most commonly observed invasive reptiles in Pennsylvania include:
- Ball Python (Python regius)