Snakes in Delaware: identification guide and best places to start

Snakes do show up in Delaware, and the best first step is matching habitat, timing, and recent local conditions. Start with the state wildlife hub, compare likely cover and movement windows, use the animal facts page for field marks, and plan one realistic route before heading out.

T

By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

Northern Watersnake photographed in Delaware

Northern Watersnakeinbetweenbays CC BY

Eastern Garter Snake photographed in Delaware

Eastern Garter Snakeinbetweenbays CC BY

Eastern Garter Snake photographed in Delaware

Eastern Garter Snakeinbetweenbays CC BY

Photos by iNaturalist observers, reused under the licence each observer chose.
Not established in Delaware
8
species recorded
0
GBIF records
May, April, June
peak months

Verified species, source iNaturalist

14 types of snakes recorded in Delaware

14 snake species have a verified observation record in Delaware across snakes (suborder Serpentes), each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.

  • Common Garter Snake (Thamnophis sirtalis), a species recorded in Delaware1

    Common Garter Snake

    Thamnophis sirtalis

    911 records

    kclarksdnhmorg CC BY

    Wikipedia
  • Common Watersnake (Nerodia sipedon), a species recorded in Delaware2

    Common Watersnake

    Nerodia sipedon

    775 records

    Alie / C.A. Kratzer CC BY-SA

    Wikipedia
  • Central Ratsnake (Pantherophis alleghaniensis), a species recorded in Delaware3

    Central Ratsnake

    Pantherophis alleghaniensis

    651 records

    Katja Schulz CC BY

    Wikipedia
  • DeKay's Brownsnake (Storeria dekayi), a species recorded in Delaware4

    DeKay's Brownsnake

    Storeria dekayi

    296 records

    Public domain CC0

    Wikipedia
  • North American Racer (Coluber constrictor), a species recorded in Delaware5

    North American Racer

    Coluber constrictor

    259 records

    Peter Brastow CC BY

    Wikipedia
  • Ring-necked Snake (Diadophis punctatus), a species recorded in Delaware6

    Ring-necked Snake

    Diadophis punctatus

    119 records

    Public domain CC0

    Wikipedia
  • Eastern Hognose Snake (Heterodon platirhinos), a species recorded in Delaware7

    Eastern Hognose Snake

    Heterodon platirhinos

    98 records

    Sam Kieschnick CC BY

    Wikipedia
  • Common Wormsnake (Carphophis amoenus), a species recorded in Delaware8

    Common Wormsnake

    Carphophis amoenus

    93 records

    Alex Stach CC BY

    Wikipedia
  • Rough Greensnake (Opheodrys aestivus), a species recorded in Delaware9

    Rough Greensnake

    Opheodrys aestivus

    62 records

    Joseph McPhail CC BY

    Wikipedia
  • Common Ribbon Snake (Thamnophis saurita), a species recorded in Delaware10

    Common Ribbon Snake

    Thamnophis saurita

    60 records

    John Baur CC BY

    Wikipedia
  • Eastern Milksnake (Lampropeltis triangulum), a species recorded in Delaware11

    Eastern Milksnake

    Lampropeltis triangulum

    47 records

    Matt Berger CC BY

    Wikipedia
  • Queensnake (Regina septemvittata), a species recorded in Delaware12

    Queensnake

    Regina septemvittata

    15 records

    Jared Shorma CC BY

    Wikipedia

Also recorded in Delaware

#SpeciesRecords
13Eastern CopperheadAgkistrodon contortrix12
14Eastern KingsnakeLampropeltis getula10

Plus 3 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations. Photos by iNaturalist observers, reused under the licence each observer chose.

Real sighting data, source iNaturalist

3,466 verified observations on iNaturalist of snake have been recorded in Delaware, most often in May, April, June.

When snake are recorded in Delaware

Snakes do show up in Delaware, and the best first step is matching habitat, timing, and recent local conditions. Start with the state wildlife hub, compare likely cover and movement windows, use the animal facts page for field marks, and plan one realistic route before heading out.

What snakes are most commonly seen in Delaware?

Delaware is home to about 19 snake species. The most frequently encountered are the Eastern garter snake, Northern water snake, Eastern rat snake, and the venomous Northern copperhead. Garter snakes are small and striped, often found in gardens. Water snakes are common near ponds and streams. Rat snakes are large, black, and excellent climbers.

In Delaware, snakes sightings usually improve when you slow down and match your first stop to where people are most likely to notice them. Use thestate wildlife huband theroute guideto narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.

Where are people most likely to notice snakes in Delaware?

Snakes turn up in three main settings: wetland edges, forest clearings, and backyards near cover. Look along theDelaware Wildlifecorridors like the Redden State Forest, Bombay Hook, and the beaches of Cape Henlopen. Suburban yards with rock piles, wood stacks, or tall grass also attract them. Start your search in early morning when snakes bask on warm surfaces.

What season or weather patterns help with snake spotting?

Snakes are most active from April to October. The best odds come on warm, overcast days after a rain shower. Spring and fall offer moderate temperatures that keep snakes moving during daylight. In the peak of summer, focus on early mornings or late afternoons when they are not hiding from the midday heat.

See ourstate animal guidefor the next step.

How can you identify a snake from a distance?

Focus on three cues: body pattern, head shape, and scale texture. Check out our/animals/snakehub for detailed ID charts. For example, copperheads have hourglass bands, a wide triangular head, and keeled scales. Non-venomous water snakes have similar patterns but round pupils and a more slender head. Garter snakes have a distinct yellow stripe running down the back.

What is the difference between venomous and non-venomous snakes in Delaware?

Only the Northern copperhead is venomous and common statewide. It has a thick body, heat-sensing pits between eye and nostril, and a copper-colored head. All other Delaware snakes are harmless. Use the classic rule: round pupils usually mean non-venomous, but always keep distance. If in doubt, assume it's a copperhead and back away slowly.

What should you do if you encounter a snake?

Stop and let the snake move away. Most snakes will flee if given space. Do not try to handle or kill it. If it's near your home, leave it alone or call a local wildlife removal service. For identification help, snap a photo from a safe distance and compare with field guides.

Recommended stops for snake watching in Delaware

For a productive outing, hit the trails at Blackbird State Forest or the Great Cypress Swamp. These spots have good mixes of upland and wetland habitats. Walk slowly and watch the ground ahead, especially near logs and rocks.

Where can you find snake-related apparel and gifts?

After a day of spotting, nothing beats wearing your interest. Here are a few snake-themed shirts from Easy Street Markets:

Rattlesnake Graphic T-Shirt

A bold rattlesnake design for showing off your interest in Delaware reptiles.Check Price and Availability

Green Viper Snake T-Shirt

A vibrant green viper print that stands out in any crowd.Check Price and Availability

Retro Cute Snake T-Shirt

A playful retro style that works for casual outings.Check Price and Availability

For more designs,compare wildlife shirtson Easy Street Markets.

Frequently asked questions about snakes in Delaware

**Are there rattlesnakes in Delaware?** No. Timber rattlesnakes are extirpated; the only venomous snake is the copperhead. **When are baby snakes born?** Most give birth in late summer to early fall. Copperheads have live young in August or September. **What should I do if bitten?** Stay calm, immobilize the limb, and get to a hospital immediately. Do not cut or suck the wound. **Can snakes climb?** Yes. Rat snakes and black racers often climb trees to hunt birds or escape predators.

See ourtour planning ideasfor the next step.

Gear and field guides

Plan your trip

Best time to see snake in Delaware: May, April, June

See the month-by-month sighting calendar.

When to go

Plan your snake sighting in Delaware

There are no verified snake records for Delaware, which fits how uncommon they are here. See the GBIF records.

Frequently asked questions

What snake species live in Delaware?+

Delaware is home to about 19 snake species. The most frequently encountered are the Eastern garter snake, Northern water snake, Eastern rat snake, and the venomous Northern copperhead. Garter snakes are small and striped, often found in gardens. Water snakes are common near ponds and streams. Rat snakes are large, black, and excellent climbers. In Delaware, snakes sightings usually improve when you slow down and match your first stop to where people are most likely to notice them. Use thestate wildlife huband theroute guideto narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.

Where can you see snakes in Delaware?+

Delaware is home to about 19 snake species. The most frequently encountered are the Eastern garter snake, Northern water snake, Eastern rat snake, and the venomous Northern copperhead. Garter snakes are small and striped, often found in gardens. Water snakes are common near ponds and streams. Rat snakes are large, black, and excellent climbers. In Delaware, snakes sightings usually improve when you slow down and match your first stop to where people are most likely to notice them. Use thestate wildlife huband theroute guideto narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.

When is the best time to see snakes in Delaware?+

Delaware is home to about 19 snake species. The most frequently encountered are the Eastern garter snake, Northern water snake, Eastern rat snake, and the venomous Northern copperhead. Garter snakes are small and striped, often found in gardens. Water snakes are common near ponds and streams. Rat snakes are large, black, and excellent climbers. In Delaware, snakes sightings usually improve when you slow down and match your first stop to where people are most likely to notice them. Use thestate wildlife huband theroute guideto narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.