MJP –
New Jersey, known for its lush forests, serene lakes, and abundant wildlife, is a perfect place to enjoy the great outdoors. However, hidden among the natural beauty are some dangerous and unexpected creatures—specifically, snakes. While snakes play an essential role in the ecosystem, they can pose a risk to unwary visitors, particularly in certain lakes throughout the state.
If you’re planning to visit some of New Jersey’s most popular lakes, you should be aware of areas where snake sightings are frequent and infestations are more common. Here are 11 snake-infested lakes in New Jersey that you might want to avoid—at least, until you’re prepared.
1. Lake Hopatcong (Jefferson Township)
As New Jersey’s largest freshwater lake, Lake Hopatcong attracts many anglers, boaters, and swimmers each year. However, this beautiful lake is also home to a variety of snake species, including the northern water snake, which can often be spotted basking on rocks along the shoreline. The lake’s natural environment, with its shallow areas and dense vegetation, makes it an ideal habitat for snakes. Though most species are non-venomous, their aggressive behavior when threatened can make this lake a risky spot for visitors.
2. Round Valley Reservoir (Clinton)
Round Valley Reservoir is a popular location for boating, fishing, and camping, but it’s also known for its snake population. This reservoir is home to the timber rattlesnake, which is a venomous species that primarily inhabits the surrounding forests and wetlands. The mix of dense foliage and water makes it an ideal place for these snakes to hunt and shelter. Hikers and campers near the water should exercise caution, especially during warmer months when snakes are more active.
3. Palisades Reservoir (Alpine)
The Most Watched Lakes: 5 Snake-Infested Spots You Should Avoid in Alaska
Located along the Palisades Interstate Park, Palisades Reservoir is another spot where snakes are commonly found. The snake population here includes a variety of species, such as the water moccasin and northern water snake. These reptiles are typically seen sunbathing on rocks near the water’s edge. While not all of them are dangerous, their presence can still be alarming, especially if you’re enjoying a peaceful day by the water. If you’re visiting this area, stay on well-traveled paths and avoid thick brush along the shoreline.
4. Lake Assunpink (Upper Freehold Township)
Lake Assunpink offers a tranquil retreat for nature lovers, but it’s also a hotspot for snakes. The lake is home to a variety of species, including garter snakes and the occasional eastern rat snake. These non-venomous snakes are often spotted near the water, particularly in the summer months. While they typically aren’t aggressive, their presence can still pose a threat, especially if you’re wading or swimming in the shallows.
5. Spruce Run Recreation Area (Clinton Township)
Situated along the Spruce Run Reservoir, this area is another popular destination for outdoor enthusiasts. However, the reservoir’s shoreline is known to harbor a large population of snakes, particularly the northern water snake. The snakes are often seen basking on logs or swimming in the water. Visitors should be cautious around the reservoir’s wetlands, as this is where snake sightings are most common. Snakes are attracted to the dense vegetation, which offers shelter and a plentiful food source.
6. Lake Marie (Warren County)
While Lake Marie is known for its peaceful surroundings and beautiful views, it is also home to a large number of water snakes, including the eastern garter snake. The lake is surrounded by thick vegetation and wetlands, providing the perfect environment for snakes to thrive. Boaters, anglers, and swimmers should be especially cautious when venturing close to the shoreline, where snakes often take refuge in tall grass or submerged logs.
7. Bassing Ridge Reservoir (Middlesex County)
Located in Middlesex County, Bassing Ridge Reservoir is a serene lake surrounded by dense forests and wetlands. The mix of water and wooded areas makes it a prime location for various snake species, including the common water snake. Visitors may encounter these snakes near the water, especially in shallow areas where they tend to hunt for fish. If you’re planning to visit this lake, it’s best to stay on marked trails and keep a safe distance from the water’s edge.
8. Echo Lake (Westfield)
Echo Lake is another popular spot for picnics, fishing, and nature walks. However, it is also home to several species of snakes, including the harmless but numerous northern water snake. These snakes are typically found around the shoreline, particularly in the warmer months when they come out to sunbathe. If you’re swimming or boating, it’s wise to be aware of your surroundings, as sudden snake appearances can catch you off guard.
9. Wawayanda Lake (Wawayanda State Park)
This scenic lake is known for its excellent hiking trails and peaceful waters, but it also hides a variety of snakes. Wawayanda Lake attracts water moccasins and northern water snakes, both of which thrive in the warm, shallow areas of the lake. These snakes are often seen resting on rocks or swimming along the edges of the lake. While water moccasins are venomous, the chances of encountering one are low, but it’s best to be cautious when hiking near the lake.
10. Lake Lenape (Mays Landing)
Lake Lenape is a peaceful spot, but it’s also home to a variety of snakes, including the eastern rat snake and northern water snake. The surrounding marshy areas and wooded environment make it an ideal habitat for these creatures. Visitors should be cautious when walking along the lake’s shoreline, as snakes can often be found in tall grass or near trees. Although these snakes are generally non-venomous, they can become defensive if threatened.
11. Delaware and Raritan Canal State Park (Somerset County)
While not a traditional lake, the Delaware and Raritan Canal offers several bodies of water and wetlands where snakes thrive. The park is home to a variety of snake species, including the northern water snake and black rat snake. These reptiles are often seen near the water or in the vegetation along the canal. Visitors to this area should exercise caution when walking near the canal or venturing into the woods, as the snakes are adept at blending into their surroundings.
While New Jersey offers an abundance of outdoor activities and scenic lakes, it’s important to stay vigilant, especially when dealing with the state’s snake population.
Many of the lakes listed above are prime habitats for various snake species, some of which can be venomous or aggressive if provoked. Always exercise caution near the water, stay on established trails, and respect the wildlife that calls these areas home. By being aware of the potential risks and taking necessary precautions, you can safely enjoy New Jersey’s lakes without running into trouble with its slippery, slithering residents.

Juniper Calloway is a dedicated journalist with 3 years of experience in covering hard-hitting stories. Known for her commitment to delivering timely and accurate updates, she currently works with MikeandJon Podcast, where she focuses on reporting critical topics such as crime, local news, and national developments across the United States. Her ability to break down complex issues and keep audiences informed has established her as a trusted voice in journalism.