Snakes in District of Columbia

The District of Columbia has about 21 recorded snake species, and venom presence here is minimal: only the Eastern Copperhead is a realistic local concern, and even that is uncommon. The overwhelming majority of snakes found in and around the city are completely harmless to people. In an urban setting woven through with parks and river corridors, almost every snake you encounter is a shy, non-venomous species that wants nothing to do with you.

Despite being a city, DC supports a surprising number of snakes thanks to its green infrastructure. Rock Creek Park, the Potomac and Anacostia river corridors, wooded ravines, and scattered marshy and brushy edges give snakes cover, basking spots, and prey within the urban landscape. This blend of forested parkland and waterways tucked into a small federal district is what keeps local snake diversity higher than people expect.

The only venomous snake that is a realistic concern in the District is the Eastern Copperhead, and even it is uncommon, sticking to the more wooded, rocky parts of parks and ravines. For practical purposes, treat venom presence in the city as minimal: a copperhead encounter is possible but unlikely, and the snake is well camouflaged, secretive, and quick to avoid people. There is no resident cottonmouth or rattlesnake concern within the District itself.

The snakes people usually see in DC are harmless: common garter snakes in gardens and parks, the eastern ratsnake (black rat snake) in wooded areas, eastern milk snakes around old buildings, northern watersnakes along the rivers and creeks (often mistaken for copperheads or cottonmouths), DeKay's brownsnake in city lots and leaf litter, and ring-necked snakes under logs and rocks. Snakebites are very rare here and almost always happen when someone handles a snake. Never assume a wild snake is safe to handle. If a bite occurs, call Poison Control at 1-800-222-1222 or 911.