Snakes in New Hampshire: identification guide and best places to start

Yes, New Hampshire is home to 11 species of snakes, including the venomous timber rattlesnake. Most are harmless and found in forests, fields, and near water. Start your search on sunny days in spring or early summer along rocky edges and old stone walls. Check out our [New Hampshire wildlife hub](/wildlife/new-hampshire) for more.

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

Common Ribbon Snake photographed in New Hampshire

Common Ribbon Snake · Logan Young CC BY

Maritime Garter Snake photographed in New Hampshire

Maritime Garter Snake · Annie Evankow CC BY

Northern Redbelly Snake photographed in New Hampshire

Northern Redbelly Snake · Logan Young CC BY

Photos by iNaturalist observers, reused under the licence each observer chose.
Not established in New HampshirePeak season right now
8
species recorded
0
GBIF records
May, June, July
peak months

Snakes aren't established in New Hampshire, so you might be wondering:

Verified species, source iNaturalist

9 types of snakes recorded in New Hampshire

9 snake species have a verified observation record in New Hampshire 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 New Hampshire1

    Common Garter Snake

    Thamnophis sirtalis

    2,709 recordsNative

    kclarksdnhmorg CC BY

    Wikipedia
  • Common Watersnake (Nerodia sipedon), a species recorded in New Hampshire2

    Common Watersnake

    Nerodia sipedon

    839 recordsNative

    Alie / C.A. Kratzer CC BY-SA

    Wikipedia
  • Eastern Milksnake (Lampropeltis triangulum), a species recorded in New Hampshire3

    Eastern Milksnake

    Lampropeltis triangulum

    459 records

    Matt Berger CC BY

    Wikipedia
  • Red-bellied Snake (Storeria occipitomaculata), a species recorded in New Hampshire4

    Red-bellied Snake

    Storeria occipitomaculata

    211 recordsNative

    Clay Gibbons CC BY

    Wikipedia
  • Common Ribbon Snake (Thamnophis saurita), a species recorded in New Hampshire5

    Common Ribbon Snake

    Thamnophis saurita

    163 recordsNative

    John Baur CC BY

    Wikipedia
  • DeKay's Brownsnake (Storeria dekayi), a species recorded in New Hampshire6

    DeKay's Brownsnake

    Storeria dekayi

    139 records

    Public domain CC0

    Wikipedia
  • Ring-necked Snake (Diadophis punctatus), a species recorded in New Hampshire7

    Ring-necked Snake

    Diadophis punctatus

    86 recordsNative

    Public domain CC0

    Wikipedia
  • Smooth Greensnake (Opheodrys vernalis), a species recorded in New Hampshire8

    Smooth Greensnake

    Opheodrys vernalis

    50 recordsNative

    Dustin Snider CC BY

    Wikipedia
  • North American Racer (Coluber constrictor), a species recorded in New Hampshire9

    North American Racer

    Coluber constrictor

    16 records

    Peter Brastow CC BY

    Wikipedia

Plus 2 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

4,699 verified observations on iNaturalist of snake have been recorded in New Hampshire, most often in May, June, July.

When snake are recorded in New Hampshire

Yes, New Hampshire is home to 11 species of snakes, including the venomous timber rattlesnake. Most are harmless and found in forests, fields, and near water. Start your search on sunny days in spring or early summer along rocky edges and old stone walls. Check out ourNew Hampshire wildlife hubfor more.

Where are people most likely to notice snakes in New Hampshire?

Snakes are often seen in backyards near woodpiles, rock walls, and gardens. State parks like Pawtuckaway and Monadnock have good populations. Wetlands and pond edges are productive for water snakes. Keep an eye on sunny trails and old stone walls. For more on snake habitats, visitour snake species page.

In New Hampshire, 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.

What season or weather patterns help with snake sightings?

Snakes emerge from hibernation in April and May. Warm, sunny days in the 70s and 80s after rain are best. They are most active in morning and late afternoon. Summer evenings near roads can yield roadside basking. For timing details, seesnake activity patterns.

Most misses happen when people arrive at the wrong hour or expect nonstop activity. Build around what season or weather patterns help, keep one backup area in mind, and use theanimal facts pageplustour planning ideasto compare what a realistic outing looks like in New Hampshire. If movement slows, stay longer at one promising spot, listen for calls or watch for edge movement, and reset around weather, light, water, or feeding changes instead of jumping to a totally new area too early.

What simple ID cues separate common snakes from lookalikes?

Look at head shape (oval vs. triangular for venomous), pupil shape (round vs. elliptical), and scale texture (keeled vs. smooth). The timber rattlesnake has a rattle and a thick body. Garter snakes have stripes. Northern water snakes have dark bands that widen towards the belly.Learn more about snake identification.

See ourstate animal guidefor the next step.

What are the most common snake species in New Hampshire?

The eastern garter snake is widespread. Also common: northern ringneck snake, northern water snake, milk snake, and smooth green snake. The timber rattlesnake is rare and only in southern parts. For a full list, check theNew Hampshire wildlife page.

How can you stay safe while snake spotting?

Keep a respectful distance. Wear boots and long pants. Never try to handle a snake. If you see a timber rattlesnake, back away slowly. Learn to identify it by its rattle and pattern. Use the trip planning widget below to find snake-friendly trails:

For more safety tips, visitsnake safety guidelines.

Where can I find snake-related gear and apparel?

After your outing, show off your interest with a snake-themed t-shirt from Easy Street Markets. Check out these designs:

Rattlesnake Graphic T-Shirt

A bold graphic tee perfect for your next hike or nature center visit.Check Price and Availability

Green Viper Snake T-Shirt

A striking viper design with vibrant green tones, great for reptile fans.Check Price and Availability

Retro Cute Snake T-Shirt

A playful retro-style snake that adds whimsy to your wardrobe.Check Price and Availability

Browse our full collection ofsnake t-shirtsfor more options.

What should you do if you encounter a timber rattlesnake?

Stay calm, back away slowly, and give it space. Do not attempt to kill or handle it. Report the sighting to the New Hampshire Fish and Game Department. They track populations. For more, seetimber rattlesnake information.

How can you identify a garter snake from a ribbon snake?

Garter snakes have stripes along the body, but ribbon snakes are thinner with a longer tail. Ribbon snakes also have a white spot in front of the eye. Check the pattern and head shape for accuracy. For additional ID tips, visitsnake identification guides.

See ourtour planning ideasfor the next step.

Gear and field guides

Plan your trip

Best time to see snake in New Hampshire: May, June, July

See the month-by-month sighting calendar.

When to go

Plan your snake sighting in New Hampshire

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

Where to look in New Hampshire

Planning a trip to see snake? Find places to stay near Appalachian National Scenic Trail on Booking.com.

Frequently asked questions

What snake species live in New Hampshire?+

Snakes are often seen in backyards near woodpiles, rock walls, and gardens. State parks like Pawtuckaway and Monadnock have good populations. Wetlands and pond edges are productive for water snakes. Keep an eye on sunny trails and old stone walls. For more on snake habitats, visitour snake species page. In New Hampshire, 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 New Hampshire?+

Snakes are often seen in backyards near woodpiles, rock walls, and gardens. State parks like Pawtuckaway and Monadnock have good populations. Wetlands and pond edges are productive for water snakes. Keep an eye on sunny trails and old stone walls. For more on snake habitats, visitour snake species page. In New Hampshire, 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 New Hampshire?+

Snakes are often seen in backyards near woodpiles, rock walls, and gardens. State parks like Pawtuckaway and Monadnock have good populations. Wetlands and pond edges are productive for water snakes. Keep an eye on sunny trails and old stone walls. For more on snake habitats, visitour snake species page. In New Hampshire, 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.