Snakes in Wisconsin: Adorable Badger Slitherers

Ever wondered how many slithery, legless reptiles call Wisconsin their home? Well, you’re in luck! It turns out that there is a surprisingly diverse array of serpents residing in our beautiful state.

While you’re exploring the great outdoors in Wisconsin, you might just encounter one or more of the 23 species of snakes that call this place home. That’s right — 23 different species!

From the venomous to the completely harmless, we’ve got all sorts of fascinating snakes dwelling among us. So let’s dive into the world of these scaly creatures and learn more about our slithering neighbors.

#	Name	Details	Image
1	Black Rat Snake (Pantherophis obsoletus)	Size: Up to 8 feet (2.4 meters) Color: Black with faint dark blotches Habitat: Forests, grasslands, and urban areas Behaviour: Diurnal and semi-arboreal
2	Bullsnake (Pituophis catenifer sayi)	Size: 4-6 feet (1.2-1.8 meters) Color: Brown or yellowish with dark blotches Habitat: Grasslands, deserts, woodlands, and agricultural areas Behaviour: Diurnal and terrestrial
3	Butler’s Gartersnake (Thamnophis butleri)	Size: Up to 27 inches (68.5 cm) Color: Black or brown with yellow or orange stripes Habitat: Grasslands, marshes, and meadows Behaviour: Diurnal and terrestrial
4	Common Garter Snake (Thamnophis sirtalis)	Size: Up to 3-4 feet (0.9-1.2 meters) Color: Green or brown with three yellow stripes Habitat: Wet and moist habitats, including marshes, fields, and forests Behaviour: Diurnal, active, hibernates in winter
5	Common Water Snake (Nerodia sipedon)	Size: Up to 4.5 feet (1.4 meters) Color: Brown or gray with dark bands or blotches Habitat: Aquatic habitats, including lakes, rivers, and ponds Behaviour: Nocturnal and semiaquatic
6	Dekay’s Brownsnake (Storeria dekayi)	Size: 9-15 inches (23-38 cm) Color: Brown or gray with dark spots Habitat: Forests, grasslands, wetlands, and urban areas Behaviour: Terrestrial, nocturnal, and secretive
7	Eastern Fox Snake (Pantherophis gloydi)	Size: Up to 5 feet (1.5 meters) Color: Yellowish or light brown with dark blotches Habitat: Wetlands, meadows, and woodland edges Behaviour: Nocturnal and terrestrial
8	Eastern Hog-nosed Snake (Heterodon platirhinos)	Size: 20-33 inches (51-84 cm) Color: Highly variable, typically brown or gray with dark blotches Habitat: Woodlands, grasslands, and sandy areas Behaviour: Diurnal, known for playing dead when threatened
9	Eastern Ribbon Snake (Thamnophis sauritus sauritus)	Size: 18-34 inches (45-86 cm) Color: Black, greenish, or brown with three distinct light stripes Habitat: Wetlands, swamps, and marshes near water Behaviour: Active during the day, good swimmers, and skittish
10	Gophersnake (Pituophis catenifer)	Size: Up to 7 feet (2.1 meters) Color: Yellow, brown, or cream with dark spots Habitat: Deserts, grasslands, forests, and agricultural areas Behaviour: Diurnal and burrow-dwelling
11	Lined Snake (Tropidoclonion lineatum)	Size: Up to 20 inches (51 cm) Color: Gray or tan with dark stripes Habitat: Grasslands, prairies, and urban areas Behaviour: Nocturnal and fossorial
12	Massasauga Rattlesnake (Sistrurus catenatus)	Size: 18-30 inches (46-76 cm) Color: Gray or light brown with dark banding Habitat: Grasslands, marshes, and woodland areas Behaviour: Nocturnal, secretive, and terrestrial
13	Milksnake (Lampropeltis triangulum)	Size: 20 to 60 inches (50 to 150 cm) Color: Red or orange with black and white bands Habitat: Various habitats, including forests, grasslands, and rocky hillsides Behaviour: Nocturnal and secretive
14	North American Blue Racer (Coluber constrictor foxii)	Size: Up to 6 feet (1.8 meters) Color: Blue or blue-green with white or pale gray belly Habitat: Grasslands, meadows, woodland edges, and urban areas Behaviour: Diurnal and non-aggressive, fast-moving
15	Northern Ringneck Snake (Diadophis punctatus edwardsii)	Size: 12-15 inches, rarely up to 24 inches Color: Gray or black with a distinctive yellow or orange ring around the neck Habitat: Woodlands, rock outcrops, and grasslands Behaviour: Nocturnal, secretive, and terrestrial
16	Plains Garter Snake (Thamnophis radix)	Size: 16-28 inches (41-71 cm) Color: Brown or gray with yellow or orange stripes Habitat: Grasslands, wetlands, and areas near water sources Behaviour: Diurnal, good swimmers, and semi-aquatic
17	Prairie Ringneck Snake (Diadophis punctatus arnyi)	Size: 10-15 inches (25-38 cm) Color: Gray or olive with a yellow or orange ring around the neck Habitat: Prairies, grasslands, and woodlands Behaviour: Nocturnal, secretive, and burrow-dwelling
18	Queen Snake (Regina septemvittata)	Size: Up to 3 feet (0.9 meters) Color: Olive, brown or gray with three stripes and cream or yellowish belly Habitat: Streams, creeks, and other aquatic environments Behaviour: Diurnal, and highly aquatic
19	Red-Bellied Snake (Storeria occipitomaculata)	Size: 8-16 inches (20-41 cm) Color: Gray or brown with a red or orange belly Habitat: Forests, woodlands, and wetlands Behaviour: Nocturnal, secretive, and terrestrial
20	Smooth Green Snake (Opheodrys vernalis)	Size: 14-20 inches (36-51 cm) Color: Bright green with a lighter belly Habitat: Grasslands, meadows, and open woodlands Behaviour: Diurnal, terrestrial, and good climbers
21	Timber Rattlesnake (Crotalus horridus)	Size: Up to 6 feet (1.8 meters) Color: Yellow, brown, gray, or black with dark bands Habitat: Forests, mixed woodlands, and rocky hillsides Behaviour: Solitary and ambush predator
22	Western Ribbonsnake (Thamnophis proximus)	Size: 18-30 inches (46-76 cm) Color: Black or dark brown with three bright yellow or white stripes Habitat: Semi-aquatic habitats, wetlands, marshes, and grasslands near water Behaviour: Diurnal, swift, and good swimmer
23	Western Wormsnake (Carphophis vermis)	Size: Up to 14 inches (35.5 cm) Color: Brown to black on the back and pink or light brown on the belly Habitat: Deciduous forests, grasslands, and suburban areas with moist soil Behaviour: Secretive, nocturnal, and burrowing

23 Snakes You Can Find in Wisconsin

In the state of Wisconsin, a fascinating array of serpents can be found slithering through its diverse landscapes. From venomous to harmless, each species has its unique story to tell. Below, we’ll explore the wonders of these often misunderstood creatures of Wisconsin, from their natural habitats and behaviors to the challenges they face in our changing world.

1. Black Rat Snake

Pantherophis obsoletus, commonly known as Black Rat Snake, can grow up to 8 feet (2.4 meters) long, with a black and dark-blotched coloring. These non-venomous reptiles inhabit forests, grasslands, and urban areas of Wisconsin, showcasing diurnal and semi-arboreal behavior. Their diet consists of rodents, birds, and eggs. Female Black Rat Snakes lay eggs in clutches of 5-30 during the reproduction season. Although not endangered, these snakes play an important role in controlling rodent populations.

2. Bullsnake

The Bullsnake (Pituophis catenifer sayi), a non-venomous constrictor, measures 4-6 feet (1.2-1.8 meters) and exhibits a brown or yellowish color with dark blotches. Found in grasslands, deserts, woodlands, and agricultural areas, these diurnal and terrestrial snakes primarily feed on rodents, rabbits, ground-nesting birds, and eggs. During the reproduction, the female Bullsnake lays egg clutches ranging from 5-22. With a conservation status listed as “Least Concern”, the Bullsnake is not currently under threat in Wisconsin.

3. Butler’s Gartersnake

The Butler’s Gartersnake (Thamnophis butleri) is a non-venomous reptile that can grow up to 27 inches in length. Known for its black or brown coloration contrasted by yellow or orange stripes, this diurnal and terrestrial snake primarily inhabits grasslands, marshes, and meadows. Butler’s Gartersnake mainly feasts on earthworms, slugs, and small amphibians. Breeding season typically sees them laying egg clutches of 4-12. Currently, their conservation status is categorized as least concern.

4. Common Garter Snake

The Common Garter Snake (Thamnophis sirtalis) is a 3-4 feet (0.9-1.2 meters) non-aggressive and mildly venomous reptile with a green or brown body and three yellow stripes. Inhabiting wet and moist habitats like marshes, fields, and forests of Wisconsin, these diurnal snakes hibernate during winter to escape the cold. Their diet consists of frogs, fish, earthworms, and small mammals. Uniquely, these snakes birth live young, producing 10-40 per litter. Although venomous, they pose no threat to humans and are currently listed as a species of least concern for conservation.

5. Common Water Snake

The Common Water Snake (Nerodia sipedon) is a non-venomous, nocturnal, semiaquatic reptile that can grow up to 4.5 feet (1.4 meters) in size. Their brown or gray body has dark bands or blotches as markings. Commonly found in aquatic habitats like lakes, rivers, and ponds, this snake’s diet consists of fish, frogs, and salamanders. It reproduces by giving birth to live young in litters containing 10-40 offspring. Although non-venomous, it can release foul-smelling musk in defense. Its conservation status is of least concern.

6. Dekay’s Brownsnake

Storeria dekayi, commonly known as Dekay’s Brown Snake, is a small, non-venomous reptile, measuring 9-15 inches (23-38 cm) in length. Its brown or gray body features dark spots, and it inhabits forests, grasslands, wetlands, and urban areas. Exhibiting terrestrial, nocturnal, and secretive behavior, its diet consists primarily of earthworms, slugs, and other soft-bodied invertebrates. A fascinating ovoviviparous species, Dekayís Brown Snake gives birth to live young, bearing 3-40 offspring. Its current conservation status is classified as least concern.

7. Eastern Fox Snake

The Eastern Fox Snake (Pantherophis gloydi) is a non-venomous reptile, reaching up to 5 feet (1.5 meters) in length. It has a yellowish or light brown color, adorned with dark blotches. Commonly found in wetlands, meadows, and woodland edges, this nocturnal and terrestrial creature feeds primarily on rodents, birds, and eggs. During the reproduction process, Eastern Fox Snakes lay eggs in clutches of 8-27. Though marked as “least concern” in conservation status, their survival is vital to maintaining ecological balance.

8. Eastern Hog-nosed Snake

The Eastern Hog-nosed Snake (Heterodon platirhinos) is a moderately-sized serpent, reaching lengths of 20-33 inches (51-84 cm). Its coloration is highly variable, typically exhibiting brown or gray hues with dark blotches. Inhabiting woodlands, grasslands, and sandy areas, this diurnal snake is known for playing dead when threatened. Its diet mainly consists of toads, along with other amphibians and small mammals. It reproduces by laying 4-60 eggs per clutch, has mild venom harmless to humans, and is classified as of “Least Concern” in conservation efforts.

9. Eastern Ribbon Snake

The Eastern Ribbon Snake, scientifically known as Thamnophis sauritus sauritus, is a non-venomous reptile measuring 18-34 inches (45-86 cm). It inhabits wetlands, swamps, and marshes near water and features a distinctive black, greenish, or brown color with three light stripes. Known for their daytime activity and skittish behavior, these snakes are excellent swimmers with a diet comprising frogs, toads, small fish, and insects. They reproduce by laying 3-27 eggs, sometimes communally with other snakes. Their conservation status is of least concern.

10. Gophersnake

The Gophersnake (Pituophis catenifer) is a non-venomous snake species measuring up to 7 feet (2.1 meters) in length. They exhibit yellow, brown, or cream-colored scales with dark spots. Gophersnakes thrive in various habitats such as deserts, grasslands, forests, and agricultural areas. These diurnal, burrow-dwelling reptiles primarily feed on mammals, birds, eggs, and other reptiles. Gophersnakes reproduce through laying egg clutches, consisting of 2-24 eggs. Currently, they have a conservation status of least concern.

11. Lined Snake

The Lined Snake (Tropidoclonion lineatum) is a small, non-venomous species, growing up to 20 inches (51 cm). It has a gray or tan colored body with dark stripes, adapted to living in grasslands, prairies, and urban areas. Being nocturnal and fossorial, this reptile primarily feeds on earthworms, slugs, and soft-bodied insects. Lined Snakes reproduce by laying eggs in clutches of 2-12. With a conservation status of least concern, they remain a thriving species.

12. Massasauga Rattlesnake

The Massasauga Rattlesnake (Sistrurus catenatus) is a small venomous snake, growing up to 18-30 inches (46-76 cm) in length. Exhibiting gray or light brown coloring with dark banding, it thrives in habitats such as grasslands, marshes, and woodland areas. This nocturnal, secretive, and terrestrial snake predominantly feeds on small mammals, lizards, and amphibians. Its reproduction involves giving birth to live young in litters ranging from 5-20. With hemotoxic venom, the snake currently has a conservation status of “Least Concern.”

13. Milksnake

The Milksnake (Lampropeltis triangulum) is a non-venomous and nocturnal reptile, ranging in size from 20 to 60 inches (50 to 150 cm) in length. It exhibits vibrant colors like red or orange, with black and white bands. Milksnakes inhabit various environments, such as forests, grasslands, and rocky hillsides. Their secretive nature makes them difficult to spot. The species primarily feeds on rodents, birds, eggs, and other reptiles. Reproduction involves laying egg clutches of 2-17. Currently, their conservation status is of least concern.

14. North American Blue Racer

The North American Blue Racer (Coluber constrictor foxii) is a swift, non-aggressive snake with striking blue or blue-green scales and a white or pale gray belly. Reaching lengths of up to 6 feet (1.8 meters), this non-venomous serpent thrives in grasslands, meadows, woodland edges, and urban areas. Active during the day, it preys on small mammals, birds, reptiles, insects, and frogs. The Blue Racer lays eggs in clutches of 5-20 and is currently labeled as “Least Concern” in conservation status.

15. Northern Ringneck Snake

The Northern Ringneck Snake (Diadophis punctatus edwardsii) is a small, mildly venomous snake native to North America, measuring 12-15 inches in length, rarely reaching up to 24 inches. Its body color varies from gray to black and features a distinctive yellow or orange ring around its neck. The species inhabits woodlands, rock outcrops, and grasslands, exhibiting nocturnal, secretive, and terrestrial behavior. Its diet consists of small invertebrates, slugs, earthworms, and small amphibians. These snakes reproduce by laying egg clutches of 3-10 and pose no threat to humans. Their conservation status is listed as least concern.

16. Plains Garter Snake

The Plains Garter Snake (Thamnophis radix) is a non-venomous reptile characterized by its brown or gray color with yellow or orange stripes. Typically measuring 16-28 inches (41-71 cm) in length, it thrives in grasslands, wetlands, and areas near water sources. These diurnal, semi-aquatic snakes are known for their swimming prowess. They feed primarily on earthworms, amphibians, fish, and invertebrates. Mating results in live births, producing 6-80 offspring per litter. Currently, their conservation status is of least concern.

17. Prairie Ringneck Snake

The Prairie Ringneck Snake (Diadophis punctatus arnyi) is a small reptile measuring 10-15 inches (25-38 cm) in length, characterized by its gray or olive coloring and distinctive yellow or orange ring around its neck. These snakes are native to prairies, grasslands, and woodlands, leading a predominantly nocturnal, secretive, and burrow-dwelling lifestyle. Their diet consists of earthworms, slugs, small salamanders, and insects. They lay eggs in clutches of 3-10 and possess weak venom which poses no threat to humans. Currently, their conservation status is listed as “least concern.”

18. Queen Snake

The Queen Snake (Regina septemvittata) is a non-venomous reptile growing up to 3 feet (0.9 meters) in length. Often sporting olive, brown, or gray coloration, this snake displays three distinctive stripes and a yellowish belly. It thrives in aquatic habitats such as streams and creeks, and is highly active during the day. Queen Snakes primarily feed on crayfish and other small aquatic invertebrates. They lay eggs in clutches of 4-14, and currently face no significant conservation threats.

19. Red-Bellied Snake

The Red-Bellied Snake (Storeria occipitomaculata) is a small, non-venomous snake measuring 8-16 inches (20-41 cm) in length. They are gray or brown with a distinctive red or orange belly. Mostly found in forests, woodlands, and wetlands of Wisconsin, these nocturnal and secretive creatures primarily feed on slugs, snails, and earthworms. As live-bearing reptiles, they produce 4-21 offspring in each litter. With a conservation status of “Least Concern,” this terrestrial snake presents no significant threat to humans.

20. Smooth Green Snake

The Smooth Green Snake (Opheodrys vernalis) measures 14-20 inches (36-51 cm) and is characterized by its vibrant green color and lighter belly. Commonly found in grasslands, meadows, and open woodlands, this diurnal and terrestrial reptile is an adept climber. Its diet mainly consists of insects and spiders. In terms of reproduction, they lay eggs in clutches of 3-12. Though non-venomous, these snakes should be admired from afar. Fortunately, their conservation status is currently listed as ‘Least Concern.’

21. Timber Rattlesnake

The Timber Rattlesnake, scientifically known as Crotalus horridus, is a solitary, ambush predator that can grow up to 6 feet (1.8 meters) in length. It comes in various colors, including yellow, brown, gray, or black with dark bands, and inhabits forests, mixed woodlands, and rocky hillsides. Its diet consists of rodents, birds, and small mammals. Unlike most snakes, the Timber Rattlesnake is viviparous, giving birth to 4-14 live young. It possesses hemotoxic venom, and its conservation status is currently listed as least concern.

22. Western Ribbonsnake

The Western Ribbonsnake (Thamnophis proximus) is a slender reptile measuring 18-30 inches (46-76 cm) in length, characterized by its black or dark brown coloration adorned with three bright yellow or white stripes. Commonly found in semi-aquatic habitats such as wetlands, marshes, and grasslands near water, this diurnal creature is a swift swimmer, preying primarily on fish, frogs, and tadpoles. The non-venomous species reproduces by laying egg clutches of 3-26, and has a conservation status of ‘Least Concern’.

23. Western Wormsnake

The Western Wormsnake (Carphophis vermis) is a non-venomous, small-sized reptile reaching up to 14 inches (35.5 cm) in length. It exhibits a distinct color pattern of brown-to-black on its back and pink or light brown on its belly. Inhabiting deciduous forests, grasslands, and moist suburban areas, this elusive, nocturnal creature primarily burrows underground and feeds on earthworms and soft-bodied invertebrates. Western Wormsnakes lay small egg clutches (1-8) and have a conservation status of Least Concern.

Nearby States:

• Snakes in Illinois
• Snakes in Indiana

Are Badger Slitherers and Garden State Slitherers the Same Species of Snake?

Yes, Badger Slitherers and Garden State Slitherers are indeed the same species of snakes in new jersey. Despite being known by different names in different regions, they are both non-venomous and commonly found in gardens and wooded areas throughout the state.

Final Words

All the 23 snakes have truly opened our eyes to the fascinating world of snakes found in Wisconsin. Who knew there were so many different types of these slithering reptiles, each with their own unique characteristics and habitats?

Not only did we get a chance to learn about some of the more common and well-known species, but we also delved into the lesser-known and often misunderstood ones.

So, the next time you’re out and about in Wisconsin, keep an eye out for these incredible creatures, and let’s continue to appreciate and protect the diverse wildlife that makes our world so interesting!