Poisonous Snakes in Pennsylvania: What to Know in 2023

Overview of Poisonous Snakes in PA

Pennsylvania is home to four types of venomous snakes: the Northern Copperhead, Eastern Timber Rattlesnake, Eastern Massasauga, and the Northern Water Moccasin. Most of these species can be found in the southeastern corner of the state, but the Eastern Timber Rattlesnake can be found in more widespread locations. It is important to note that although these snakes are venomous, they are rarely aggressive and will only bite if provoked, handled, or stepped on.

Northern Copperhead

The Northern Copperhead is the most common venomous snake in Pennsylvania, and can be found in the southeastern part of the state. They have a copper-colored head with bands of tan, brown, and black on their body. They are usually between 2 and 3 feet long, and have a thick body. Their bite is painful and can cause minor swelling, necrosis, numbness, and vomiting. They are considered a “pit viper”, meaning they have a triangular head and heat-sensing pits located between their eyes and nostrils.

Eastern Timber Rattlesnake

The Eastern Timber Rattlesnake is the second most common venomous snake in Pennsylvania. They are typically between 3 and 4 feet long, and have a thick body with a black or brown background color and a series of brown or yellow-brown crossbands. They are considered a “pit viper” and have a triangular head with heat-sensing pits located between their eyes and nostrils. They are found in more widespread locations throughout the state, and their bite can cause severe pain, swelling, necrosis, and vomiting.

Eastern Massasauga

The Eastern Massasauga is the third most common venomous snake in Pennsylvania, and is found in the southeastern corner of the state. They have a thick body with a gray or brown background color and a series of darker spots. They are usually between 2 and 3 feet long, and have a triangular head with heat-sensing pits located between their eyes and nostrils. Their bite can cause pain, swelling, necrosis, and vomiting.

Northern Water Moccasin

The Northern Water Moccasin is the fourth and least common venomous snake in Pennsylvania, and is found in the northeastern corner of the state. They have a thick body with a black or brown background color and a series of darker spots. They are usually between 2 and 3 feet long, and have a triangular head with heat-sensing pits located between their eyes and nostrils. Their bite can cause pain, swelling, necrosis, and vomiting.

Safety Tips

It is important to be aware of venomous snakes in Pennsylvania, and to take precautions when outdoors. Some safety tips include:

• Wear protective clothing while outdoors, such as long pants and boots.
• Stay on trails and avoid tall grass and brush where snakes may be hiding.
• Be aware of your surroundings and look for snakes before placing your hands or feet anywhere.
• Do not attempt to handle or kill a venomous snake.

Conclusion

It is important to be aware of the four venomous snake species found in Pennsylvania, and to take precautions when outdoors. Venomous snakes are rarely aggressive and will only bite if provoked, handled, or stepped on. If you are bitten by a venomous snake, seek medical attention immediately.