Are There Rattlesnakes in Mississippi?

Yes, rattlesnakes live in Mississippi. Timber rattlesnakes and eastern diamondbacks occur in forested areas, especially in northern and eastern regions. Residents may encounter them while hiking or camping outdoors. Bites are uncommon, and deaths are very rare with prompt medical care. Understanding how to avoid and respond to rattlesnakes ensures safe recreation.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.

Eastern Diamondback Rattlesnake photographed in Mississippi

Eastern Diamondback Rattlesnake · Scott Allen Davis CC BY

Panamint Rattlesnake photographed in Mississippi

Panamint Rattlesnake · Matt Berger CC BY

Red Diamond Rattlesnake photographed in Mississippi

Red Diamond Rattlesnake · Amy Huie CC BY

Photos by iNaturalist observers, reused under the licence each observer chose.
Found in Mississippi
2
species recorded
326
GBIF records
September, August, May
peak months

Yes, rattlesnakes are in Mississippi. Next you'll want:

Verified species, source iNaturalist

2 types of rattlesnakes recorded in Mississippi

2 rattlesnake species have a verified observation record in Mississippi, each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.

  • No openly licensed photo yet
    1

    Timber Rattlesnake

    Crotalus horridus

    224 records
  • No openly licensed photo yet
    2

    Eastern Diamondback Rattlesnake

    Crotalus adamanteus

    107 records

Counts from verified iNaturalist observations.

Real sighting data, source iNaturalist

331 verified observations on iNaturalist of rattlesnake have been recorded in Mississippi, most often in September, August, May.

When rattlesnake are recorded in Mississippi

Yes, rattlesnakes live in Mississippi. Timber rattlesnakes and eastern diamondbacks occur in forested areas, especially in northern and eastern regions. Residents may encounter them while hiking or camping outdoors. Bites are uncommon, and deaths are very rare with prompt medical care. Understanding how to avoid and respond to rattlesnakes ensures safe recreation.

Are they in Mississippi?

Yes, rattlesnakes do live in Mississippi. The state is home to timber rattlesnakes and eastern diamondback rattlesnakes. Timber rattlesnakes are found in the forested regions, particularly in the northern and eastern portions of the state, including areas along the Tennessee River drainage and in hardwood forests. Eastern diamondback rattlesnakes are present in parts of southern and southeastern Mississippi, though they are less common than they once were due to habitat loss. These snakes prefer natural, undisturbed habitats with rocky terrain, pine forests, and hardwood forests. They are not commonly encountered in urban areas or residential neighborhoods. People who spend time outdoors in natural areas or on hiking trails in northern and eastern Mississippi should be aware of rattlesnakes. To learn more aboutrattlesnake in Mississippi, knowing where these snakes live helps you take appropriate precautions. Most Mississippi residents never encounter a rattlesnake because the snakes are shy and avoid humans. They are most likely to be found in remote forests, swamps, and rocky areas far from human development.

How dangerous are they?

Rattlesnakes found in Mississippi are venomous and their bites are medically serious, requiring prompt professional medical treatment. However, bites are uncommon because the snakes are shy and avoid confrontation with humans. Rattlesnakes in Mississippi rarely bite people who respect their space and do not attempt to handle them. A timber rattlesnake or eastern diamondback bite causes pain, swelling, and tissue damage at the bite site. The venom is hemotoxic, affecting tissue around the bite. Immediate medical treatment with antivenom is the appropriate response to a bite. Deaths from rattlesnake bites are very rare in the modern United States, especially in states with good access to emergency medical care, which Mississippi has in developed areas. Most bites occur when someone attempts to kill or capture a snake rather than leaving it alone. The risk of being bitten is minimal if you avoid handling snakes and back away if you encounter one. Proper first aid and rapid access to medical care lead to good outcomes in the vast majority of cases. Fear of rattlesnakes should not prevent outdoor recreation in Mississippi, but respect for these snakes and knowledge of appropriate responses are important.

How to recognize one

Rattlesnakes in Mississippi are stocky, venomous snakes with a distinctive segmented rattle at the tip of the tail. The rattle is the most reliable identifying feature and makes a buzzing or vibrating sound when the snake is threatened. This warning sound is a clear signal to back away. Timber rattlesnakes typically have dark brown or tan coloring with darker chevron or V-shaped markings running across the back. They are usually 24 to 48 inches long, though larger specimens occur. Eastern diamondbacks are typically larger, often exceeding 48 inches and sometimes reaching over six feet in length. They have a diamond-shaped pattern along the back with dark brown or olive coloring. Both species have thick, muscular bodies and roughly triangular heads. Learn more about identifyingwildlife in Mississippi. Heat-sensing pits along the jaw help them detect warm-blooded prey. The segmented rattle at the tail is unique among Mississippi snakes. If you see a snake with a rattle or hear a rattling sound, back away immediately and give the snake plenty of space to escape. The rattle is a warning, not a threat of imminent attack.

What to do if you encounter one

If you encounter a rattlesnake in Mississippi, the first action is to remain calm and back away slowly, giving the snake space to escape. Do not attempt to touch, provoke, or capture the snake. The distinctive rattle is the snake's warning that it wants you to leave it alone. Rattlesnakes in Mississippi are not aggressive and will avoid you if given the opportunity. If you are bitten, keep the bitten area still and remove any rings or tight clothing. Wash the wound with soap and water and seek immediate medical attention. Call 911 or go to the nearest emergency room. This is general information, not medical advice; if you are bitten, call Poison Control at 1-800-222-1222, or 911 if symptoms are severe. Poison Control can provide guidance based on the snake species and your symptoms. Antivenom is available and effective, and Mississippi hospitals are familiar with treating rattlesnake bites. Immediate medical care gives the best outcome. Do not attempt field treatment or rely on folk remedies. Modern emergency medicine is the appropriate response to a rattlesnake bite.

How to prevent encounters

Preventing rattlesnake encounters in Mississippi involves awareness and sensible outdoor practices. When hiking, camping, or working outdoors in natural areas where rattlesnakes live, wear closed-toe boots with thick soles and watch where you step and place your hands. Stay on established trails and avoid deliberately disturbing brush piles, rock crevices, or areas you cannot see clearly. Make noise while hiking, such as talking or using a bell, which alerts snakes to your presence and allows them to move away. Avoid hiking in thick grass or brush during warm months when snakes are most active, or at least move slowly and carefully. When hiking in forested areas in northern and eastern Mississippi, particularly during spring through fall, staying alert and watching the ground is prudent. Before sitting on rocks or logs, check carefully to ensure no snake is present. Do not reach into areas you cannot see. These practices support generalwildlifesafety in Mississippi and help you enjoy outdoor recreation while respecting wildlife.

Where in Mississippi and when

Timber rattlesnakes in Mississippi are found primarily in the northern and eastern forested regions of the state, including areas near the Tennessee River and in Appalachian hardwood forests. These snakes prefer rocky, forested habitats with suitable hibernacula for overwintering. Eastern diamondback rattlesnakes are found in parts of southern and southeastern Mississippi, typically in areas with pine forests and natural vegetation. To better understandMississippi wildlifeand where different species live, regional guides provide detailed habitat information. Both species prefer undisturbed natural habitat away from human development. Rattlesnakes in Mississippi are active during the warmer months, typically from April or May through October or November, depending on temperature patterns. They emerge from winter hibernation in spring when temperatures warm and return to dens in fall to prepare for winter dormancy. During active season, they are most active during warm, humid days and are more likely to be encountered during mid-summer. Cooler days in spring and fall see less snake activity. Winter is not an active season for rattlesnakes in Mississippi. Central and southern Mississippi, particularly in areas with more urban development or agricultural clearing, have fewer rattlesnakes than the northern regions. Coastal areas have limited rattlesnake populations.

Harmless snakes that might be confused

Mississippi is home to several harmless snake species that might cause concern for someone unfamiliar with snakes or worried about rattlesnakes. The black rat snake is large and dark and found throughout Mississippi. Its size and coloring might seem concerning, but rat snakes are completely harmless and beneficial for controlling rodents. The northern water snake is common near streams, lakes, and wetlands and is sometimes mistaken for a venomous snake due to its variable coloring and defensive posture. Water snakes are entirely harmless. The garter snake is smaller and more slender but common throughout Mississippi. The milk snake has blotchy markings but is harmless. The kingsnake is another common species, harmless and beneficial. The hognose snake sometimes vibrates its tail when threatened, creating a sound that might be mistaken for a rattle, but hognose snakes lack the actual segmented rattle structure and are harmless. None of these species are venomous. If you encounter any snake in Mississippi, backing away slowly and leaving it alone is the safest approach. Most Mississippi snakes are beneficial for controlling rodent and insect populations.

Frequently Asked Questions

Q: How common are rattlesnake bites in Mississippi? A: Rattlesnake bites in Mississippi are very uncommon. Most bites occur when someone attempts to handle or capture a snake. Leaving snakes alone dramatically reduces the already minimal risk of being bitten. Q: What should I do if I hear a rattling sound while hiking? A: Stop immediately and locate the source of the sound. Back away slowly and give the snake space to escape. Do not approach or attempt to capture it. The rattle is a warning for you to leave the area. Q: Are all Mississippi snakes dangerous? A: No, the vast majority of Mississippi snakes are harmless and beneficial. Only rattlesnakes are venomous, and they are shy and avoid humans. Most people in Mississippi live their entire lives without encountering a rattlesnake. Q: Where can I learn more about snakes andMississippi wildlife? A: Contact the Mississippi Department of Wildlife, Fisheries, and Parks for field guides and educational resources about local snakes and reptiles. Local natural history museums also provide excellent information about Mississippi's wildlife.

Plan your trip

Best time to see rattlesnake in Mississippi: September, August, May

See the month-by-month sighting calendar.

When to go

Plan your rattlesnake sighting in Mississippi

326 verified rattlesnake records have been logged in Mississippi, most recently in 2026. See the GBIF records.

Planning a trip to see rattlesnake? Find places to stay near Gulf Islands National Seashore on Booking.com.

Frequently asked questions

Are they in Mississippi?+

Yes, rattlesnakes do live in Mississippi. The state is home to timber rattlesnakes and eastern diamondback rattlesnakes. Timber rattlesnakes are found in the forested regions, particularly in the northern and eastern portions of the state, including areas along the Tennessee River drainage and in hardwood forests. Eastern diamondback rattlesnakes are present in parts of southern and southeastern Mississippi, though they are less common than they once were due to habitat loss. These snakes prefer natural, undisturbed habitats with rocky terrain, pine forests, and hardwood forests. They are not commonly encountered in urban areas or residential neighborhoods. People who spend time outdoors in natural areas or on hiking trails in northern and eastern Mississippi should be aware of rattlesnakes. To learn more aboutrattlesnake in Mississippi, knowing where these snakes live helps you take appropriate precautions. Most Mississippi residents never encounter a rattlesnake because the snakes are shy and avoid humans. They are most likely to be found in remote forests, swamps, and rocky areas far from human development.

How dangerous are they?+

Rattlesnakes found in Mississippi are venomous and their bites are medically serious, requiring prompt professional medical treatment. However, bites are uncommon because the snakes are shy and avoid confrontation with humans. Rattlesnakes in Mississippi rarely bite people who respect their space and do not attempt to handle them. A timber rattlesnake or eastern diamondback bite causes pain, swelling, and tissue damage at the bite site. The venom is hemotoxic, affecting tissue around the bite. Immediate medical treatment with antivenom is the appropriate response to a bite. Deaths from rattlesnake bites are very rare in the modern United States, especially in states with good access to emergency medical care, which Mississippi has in developed areas. Most bites occur when someone attempts to kill or capture a snake rather than leaving it alone. The risk of being bitten is minimal if you avoid handling snakes and back away if you encounter one. Proper first aid and rapid access to medical care lead to good outcomes in the vast majority of cases. Fear of rattlesnakes should not prevent outdoor recreation in Mississippi, but respect for these snakes and knowledge of appropriate responses are important.