Snakes in North Dakota: identification guide and where to start looking
Yes, snakes live in North Dakota, but only one species is venomous: the prairie rattlesnake. Most sightings occur in the western badlands and along river corridors. This guide covers the key field marks, the best spots to find them, and how to tell lookalikes apart.
Yes, snakes live in North Dakota, but only one species is venomous: the prairie rattlesnake. Most sightings occur in the western badlands and along river corridors. This guide covers the key field marks, the best spots to find them, and how to tell lookalikes apart.
1. What snakes are found in North Dakota?
North Dakota hosts 9 snake species. The prairie rattlesnake is the only venomous one, found mostly west of the Missouri River. Common non-venomous species include the Plains garter snake, red-sided garter snake, and western hog-nosed snake. The eastern yellow-bellied racer and smooth green snake are less frequent but present in grassland areas.
In North Dakota, snakes sightings usually improve when you slow down and match your first stop to the most useful ID markers and likely lookalikes. 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.
2. How can you identify the most common snakes in North Dakota?
Start with head shape and scale patterns. Prairie rattlesnakes have a triangular head, heat-sensing pits, and a rattle. Garter snakes have a distinct yellow or red stripe down the back and are slender. Western hog-nosed snakes have an upturned snout and keeled scales. Compare belly patterns: garter snakes have a black belly, while racers have a plain yellow belly. Check oursnake identification hubfor side-by-side comparisons.
3. Where in North Dakota are people most likely to see snakes?
The badlands of the Little Missouri River are the top spot for prairie rattlesnakes and bullsnakes. River valleys like the Missouri, Red, and James Rivers host garter snakes and water snakes. Prairie grasslands near rock outcrops or rodent burrows are good for hog-nosed snakes. Start with Teddy Roosevelt National Park and the Sheyenne National Grassland. For more on North Dakota wildlife hotspots, checkwildlife in North Dakota.
See ourstate animal guidefor the next step.
4. When is the best time of year to spot snakes in North Dakota?
Snakes are most active from late April through October. Spring (May to early June) is best for basking individuals after they emerge from brumation. Summer mornings and evenings offer good sightings before the heat peaks. After a rain, snakes often move to higher ground. The peak activity window is May to September, especially in the western badlands.
5. How can you tell a prairie rattlesnake from a bullsnake?
This is a classic lookalike problem. Bullsnakes have a narrow head and round pupils, while rattlesnakes have a broad head and vertical pupils. Bullsnakes often hiss and vibrate their tail (mimicking a rattle) but lack a true rattle. Also, bullsnakes have a distinct dark stripe from the eye to the jaw, unlike rattlesnakes. For a full guide on species separation, visit ouranimals/snakepage.
6. What snake-themed gear can help you celebrate your interest?
Once you've spent time in the field, you might want to show off your herping experience. Easy Street Markets carries shirts that capture the spirit of snake observation.
### Rattlesnake Graphic T-Shirt
A classic cotton tee featuring a detailed rattlesnake design, perfect for field trips and casual wear.Check Price and Availability
### Green Viper Snake T-Shirt
Bold green viper graphic on a soft fabric, ideal for herpers who appreciate vivid patterns.Check Price and Availability
### Retro Cute Snake T-Shirt
A playful retro snake design for a lighter take on snake appreciation.Check Price and Availability
Browse more snake-inspired apparel at ourt-shirts collection.
7. Frequently asked questions about snakes in North Dakota
**Are there water moccasins in North Dakota?** No. Water moccasins (cottonmouths) do not occur in North Dakota. The only semi-aquatic snakes here are garter snakes and the northern water snake, which is harmless.
**What should I do if bitten by a prairie rattlesnake?** Stay calm, remove jewelry, keep the bite below heart level, and seek medical help immediately. Do not cut or suck the wound.
**Can I keep a wild snake as a pet?** It is illegal to collect native snakes from the wild without a permit. Check North Dakota Game and Fish regulations.
**Which snake is the largest in North Dakota?** The bullsnake can reach up to 6 feet, making it the longest species in the state.
See ourtour planning ideasfor the next step.