Are There Copperheads in Missouri?
Yes, copperheads live throughout Missouri. This venomous snake is established across the state in forests, rocky areas, and regions near streams and rivers. Copperhead bites are uncommon and rarely cause serious harm with prompt medical attention. Understanding copperhead habitat and taking basic precautions allows Missouri residents and visitors to coexist safely with this native species.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.
Eastern Copperhead · Court Harding CC BY
Eastern Copperhead · Mila C. CC BY
Eastern Copperhead · Alan Rockefeller CC BY
- 1
- species recorded
- 1,008
- GBIF records
- May, July, September
- peak months
Yes, copperheads are in Missouri. Next you'll want:
Real sighting data, source iNaturalist
749 verified observations on iNaturalist of copperhead have been recorded in Missouri, most often in May, July, September.
When copperhead are recorded in Missouri
Yes, copperheads live throughout Missouri. This venomous snake is established across the state in forests, rocky areas, and regions near streams and rivers. Copperhead bites are uncommon and rarely cause serious harm with prompt medical attention. Understanding copperhead habitat and taking basic precautions allows Missouri residents and visitors to coexist safely with this native species.
Are They in Missouri?
Copperheads are well established throughout Missouri. This venomous snake occurs statewide, from the Bootheel region in the south to the northern border. Copperheads are found in wooded areas, around streams and rivers including the Missouri River and Ozark streams, in rocky hill country, and in mixed deciduous forests. They are particularly common in the Ozark region and southern Missouri. If you venture into Missouri's forests or explore areas with rocky outcrops and mixed vegetation, copperheads may be present. Understanding copperhead presence helps outdoor fans like hikers, campers, and fishermen take appropriate safety measures. VisitMissouri wildlifeto learn about the full range of snakes and animals in your region. Copperheads play an important ecological role in Missouri, controlling rodent populations and serving as prey for larger predators.
How Dangerous Is It?
Copperhead bites in Missouri are medically significant but rarely severe or fatal. A bite causes pain, localized swelling, and tissue damage at the bite site. In rare cases, venom can cause more systemic effects, but these typically resolve with medical care. Deaths from copperhead bites are extremely rare in healthy adults who receive prompt treatment. Most copperhead bites in Missouri occur when someone accidentally steps on the snake or attempts to handle it. Many bites are dry bites in which little or no venom is delivered. Children, elderly individuals, and people with compromised immune systems face higher risk of complications. The key to managing a copperhead bite is seeking immediate medical attention. Hospitals throughout Missouri are equipped to treat envenomation, and most cases resolve with supportive care and observation rather than requiring antivenom injection.
How to Recognize One
Copperheads are medium-sized snakes, typically 24 to 36 inches long, though some reach over 4 feet. They have a distinctive hourglass or bowtie-shaped pattern of reddish-brown or tan bands on a lighter background. The head is copper-colored, which gives the species its common name. Their pupils are vertical, like those of other pit vipers. Copperheads have a thick, muscular body and often hold their head in a slightly raised position when threatened. Young copperheads are gray with a yellow-tipped tail. In Missouri, copperheads hide in rocky outcrops, under logs and leaf litter, in brush piles, and around woodpiles. They prefer mixed deciduous forests with rocky slopes, Ozark glades, and edges between forest and open areas. When hiking or exploring inMissouri wildlifezones, watch for these distinctive markings so you can recognize and avoid copperheads.
What to Do If You Are Bitten or Stung
If bitten by a copperhead in Missouri, stay calm and limit movement of the bitten area. Keep the bite site at or below heart level to slow venom absorption. Remove any rings or tight clothing from the affected area immediately, as swelling can develop quickly. Do not cut the wound, apply ice, use a tourniquet, or attempt to suck out venom. Do not apply heat or electricity. Seek immediate medical attention, either by calling 911 or going to the nearest emergency room. Inform medical staff that you were bitten by a copperhead so they can provide appropriate treatment. 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. Do not attempt to capture or kill the snake. Hospitals throughout Missouri carry appropriate antivenom and can provide expert care.
How to Prevent Encounters
When hiking or spending time in copperhead habitat in Missouri, wear closed-toe hiking boots and long pants. Watch where you place your hands and feet, especially in rocky or wooded areas. Do not reach into spaces you cannot see, such as under logs, into brush piles, or between rocks. Stay on established trails when hiking in areas known to have copperheads. Make noise as you walk so snakes have time to move away from your path. Avoid walking during dawn and dusk when copperheads are most active, particularly during warm months. Clear brush, leaf piles, and woodpiles away from your home in copperhead territory. Seal gaps around foundations and doors to prevent snakes from entering. Do not leave pet food outdoors, as it attracts rodents that copperheads hunt. When working in gardens or landscaping, watch carefully and wear protective footwear.Explore more about Missouri wildlifesafety tips.
Where in Missouri and When
Copperheads in Missouri are found throughout the state, from the southern Bootheel to the northern border. They are active from April through November, with peak activity during warm months from May through September. Copperheads are likely to be encountered in forested areas, particularly mixed deciduous forests with rocky slopes and stream valleys. Areas around the Missouri River, Ozark streams, and the Eleven Point River support copperhead populations. The Ozark region, including Table Rock Lake and Beaver Lake areas, has established copperheads. The southern and central regions of Missouri support healthy copperhead populations. Copperheads typically spend daytime hours under cover and become more active in late afternoon and evening. During the hottest parts of summer, they may be less active during midday. Autumn migration to hibernation sites increases copperhead activity in fall. Understanding seasonal patterns helps residents and hikers take appropriate precautions when visitingMissouri wildlifeareas.
Harmless Lookalikes
Several harmless Missouri snakes resemble copperheads and are commonly mistaken for them. The northern water snake is often confused with copperheads because of its banded pattern, but water snakes lack the hourglass marking and are completely harmless. The eastern milk snake has bands that some people confuse with copperhead markings, but milk snakes are harmless and typically have a different head pattern. The black racer and the rat snake may be confused with copperheads by inexperienced observers, but they lack the distinctive hourglass pattern and are harmless. The corn snake, which occurs in Missouri, has bands but is harmless and easily distinguished by those familiar with snakes. If you are uncertain about a snake, do not touch it. Take a photograph if you can do so safely and consult a field guide or local wildlife experts. Most snakes in Missouri are harmless, andcopperhead in Missouriguides help with accurate identification and reassurance.
Frequently Asked Questions
Q: How common are copperhead bites in Missouri? A: Copperhead bites in Missouri are uncommon, typically occurring when people accidentally step on the snake or attempt to handle it. Most reported bites can be treated successfully with medical care. Q: Can copperheads kill you? A: Copperhead bites are treatable, and deaths are extremely rare in healthy adults who receive prompt medical attention. The key is seeking care immediately if bitten. Q: What attracts copperheads to a house? A: Copperheads are attracted to homes with abundant rodents, which are their primary prey. They may shelter in woodpiles, thick brush, or cluttered areas near buildings. Q: What should I do if I see a copperhead near my home? A: Move to a safe distance and give the snake space to move away. Most copperheads will leave on their own. You can contact a local wildlife removal service if the snake does not leave. For more information, consultMissouri wildliferesources.
Plan your trip
Best time to see copperhead in Missouri: May, July, September
See the month-by-month sighting calendar.
Plan your copperhead sighting in Missouri
1,008 verified copperhead records have been logged in Missouri. See the GBIF records.
Where to look in Missouri
- George Washington Carver National Monument · Birdwatching · Find hotels
- Lewis & Clark National Historic Trail · Wildlife Watching · Find hotels
- Ozark National Scenic Riverways · Wildlife Watching, Birdwatching · Find hotels
- Ulysses S Grant National Historic Site · Wildlife Watching, Birdwatching · Find hotels
- Wilson's Creek National Battlefield · Wildlife Watching, Birdwatching · Find hotels
- Butterfield Overland National Historic Trail · Find hotels
Frequently asked questions
Are They in Missouri?+
Copperheads are well established throughout Missouri. This venomous snake occurs statewide, from the Bootheel region in the south to the northern border. Copperheads are found in wooded areas, around streams and rivers including the Missouri River and Ozark streams, in rocky hill country, and in mixed deciduous forests. They are particularly common in the Ozark region and southern Missouri. If you venture into Missouri's forests or explore areas with rocky outcrops and mixed vegetation, copperheads may be present. Understanding copperhead presence helps outdoor fans like hikers, campers, and fishermen take appropriate safety measures. VisitMissouri wildlifeto learn about the full range of snakes and animals in your region. Copperheads play an important ecological role in Missouri, controlling rodent populations and serving as prey for larger predators.
How Dangerous Is It?+
Copperhead bites in Missouri are medically significant but rarely severe or fatal. A bite causes pain, localized swelling, and tissue damage at the bite site. In rare cases, venom can cause more systemic effects, but these typically resolve with medical care. Deaths from copperhead bites are extremely rare in healthy adults who receive prompt treatment. Most copperhead bites in Missouri occur when someone accidentally steps on the snake or attempts to handle it. Many bites are dry bites in which little or no venom is delivered. Children, elderly individuals, and people with compromised immune systems face higher risk of complications. The key to managing a copperhead bite is seeking immediate medical attention. Hospitals throughout Missouri are equipped to treat envenomation, and most cases resolve with supportive care and observation rather than requiring antivenom injection.
More wildlife in Missouri