Are There Copperheads in Maryland?
Yes, copperheads live in Maryland. This venomous snake is established in central and southern portions of the state, particularly in forested and rocky areas. Copperhead bites are uncommon and rarely cause serious harm with prompt medical attention. Most residents and outdoor fans in Maryland can coexist safely with copperheads by understanding where they live and taking basic precautions.
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
- 657
- GBIF records
- June, May, July
- peak months
Yes, copperheads are in Maryland. Next you'll want:
Real sighting data, source iNaturalist
733 verified observations on iNaturalist of copperhead have been recorded in Maryland, most often in June, May, July.
When copperhead are recorded in Maryland
Yes, copperheads live in Maryland. This venomous snake is established in central and southern portions of the state, particularly in forested and rocky areas. Copperhead bites are uncommon and rarely cause serious harm with prompt medical attention. Most residents and outdoor fans in Maryland can coexist safely with copperheads by understanding where they live and taking basic precautions.
Are They in Maryland?
Copperheads are established in Maryland, primarily in the central and southern regions of the state. They are found throughout the piedmont and in parts of the ridge and valley provinces of western Maryland. The Catoctin Mountains, areas around the Patapsco River, and forested sections of southern Maryland support copperhead populations. They are less common in far northern Maryland and rare or absent in the coastal plain near the Chesapeake Bay. If you explore rocky woodlands or wild areas in central Maryland, copperheads may be present. Understanding the presence of copperheads in Maryland helps outdoor fans like hikers and campers take appropriate precautions. VisitMaryland wildlifeto learn about the full range of snakes and animals in your region. Copperheads are native to Maryland and play a role in the ecosystem, controlling rodent populations.
How Dangerous Is It?
Copperhead bites in Maryland 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 Maryland 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 in Maryland are equipped to treat envenomation, and many cases resolve with supportive care and observation rather than requiring antivenom.
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 most 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 yellow-tipped tails. In Maryland, copperheads hide in rocky outcrops, under logs and leaf litter, in brush piles, and around woodpiles. They prefer mixed deciduous forests with rocky slopes and edges between forest and open areas. When hiking inMaryland 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 Maryland, 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 in Maryland carry appropriate antivenom and can provide expert care.
How to Prevent Encounters
When hiking or spending time in copperhead habitat in Maryland, 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 Maryland wildlifesafety tips.
Where in Maryland and When
Copperheads in Maryland are found primarily in forested areas of the piedmont and western regions. They are active from April through November, with peak activity during warm months from May through September. Copperheads are most likely to be encountered in rocky deciduous forests, particularly in areas with limestone outcrops and mixed hardwood stands. The Catoctin Mountains, areas around the Potomac River, and the ridge and valley region of western Maryland support healthy populations. Central Maryland, including parts of Baltimore County and Howard County, has established copperheads. Southern Maryland counties also have copperhead populations. They are rare in the coastal plain and northeastern Maryland. 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. Understanding seasonal patterns helps residents and hikers take appropriate precautions when visitingMaryland wildlifeareas.
Harmless Lookalikes
Several harmless Maryland 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 eastern garter snake has stripes rather than bands and is not venomous. 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. 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 Maryland are harmless, andcopperhead in Marylandguides help with accurate identification and reassurance.
Frequently Asked Questions
Q: How common are copperhead bites in Maryland? A: Copperhead bites in Maryland 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, consultMaryland wildliferesources.
Plan your trip
Best time to see copperhead in Maryland: June, May, July
See the month-by-month sighting calendar.
Plan your copperhead sighting in Maryland
657 verified copperhead records have been logged in Maryland. See the GBIF records.
Where to look in Maryland
- Antietam National Battlefield · Wildlife Watching, Birdwatching · Find hotels
- Appalachian National Scenic Trail · Wildlife Watching, Birdwatching · Find hotels
- Assateague Island National Seashore · Wildlife Watching, Birdwatching · Find hotels
- Captain John Smith Chesapeake National Historic Trail · Wildlife Watching, Birdwatching · Find hotels
- Chesapeake & Ohio Canal National Historical Park · Wildlife Watching, Birdwatching · Find hotels
- Chesapeake Bay · Wildlife Watching · Find hotels
Frequently asked questions
Are They in Maryland?+
Copperheads are established in Maryland, primarily in the central and southern regions of the state. They are found throughout the piedmont and in parts of the ridge and valley provinces of western Maryland. The Catoctin Mountains, areas around the Patapsco River, and forested sections of southern Maryland support copperhead populations. They are less common in far northern Maryland and rare or absent in the coastal plain near the Chesapeake Bay. If you explore rocky woodlands or wild areas in central Maryland, copperheads may be present. Understanding the presence of copperheads in Maryland helps outdoor fans like hikers and campers take appropriate precautions. VisitMaryland wildlifeto learn about the full range of snakes and animals in your region. Copperheads are native to Maryland and play a role in the ecosystem, controlling rodent populations.
How Dangerous Is It?+
Copperhead bites in Maryland 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 Maryland 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 in Maryland are equipped to treat envenomation, and many cases resolve with supportive care and observation rather than requiring antivenom.
More wildlife in Maryland