Frogs in South Dakota: identification guide and where to start looking
Yes, frogs are found across South Dakota, though their diversity is highest in the eastern part of the state near reliable water sources. From the leopard frog's distinctive spots to the chorus frog's rhythmic spring calls, these amphibians are a vital part of the state's prairie and wetland ecosystems. While they can be elusive during the day, focusing on spring and early summer evenings near ponds and marshes will significantly increase your chances of a successful sighting. This guide provides the key field marks and vocalizations you need to identify the most common species in the state.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 2, 2026.
- 8
- species recorded
- June, July, September
- peak months
Real sighting data, source iNaturalist
2,456 verified observations on iNaturalist of frog have been recorded in South Dakota, most often in June, July, September.
When frog are recorded in South Dakota
Yes, frogs are found across South Dakota, though their diversity is highest in the eastern part of the state near reliable water sources. From the leopard frog's distinctive spots to the chorus frog's rhythmic spring calls, these amphibians are a vital part of the state's prairie and wetland ecosystems. While they can be elusive during the day, focusing on spring and early summer evenings near ponds and marshes will significantly increase your chances of a successful sighting. This guide provides the key field marks and vocalizations you need to identify the most common species in the state.
How do you identify frogs in South Dakota?
Frogs in South Dakota vary in size, color, and call. Look for distinctive field marks like the leopard frog's spots, the gray tree frog's sticky toe pads, or the chorus frog's three dark stripes. Their calls are a reliable identifier: the American toad's long trill, the spring peeper's high-pitched whistle, and the leopard frog's snore-like growl. Identifying them often starts with listening before you ever see them.
Where in South Dakota are frogs most common?
Your best odds are in the eastern half of the state, especially the Missouri River basin and the Prairie Pothole Region. Wetlands, cattle ponds, and floodplain forests near the James River hold high densities. In the Black Hills, look for spring peepers and boreal chorus frogs in shallow ponds and slow-moving streams. Check ourSouth Dakota wildlife hubfor more locations and spotting tips.
When is the best time to see frogs in South Dakota?
Late April through June is prime frog activity, after the ice melts and before the summer heat dries out the shallowest waters. Evening and night hours are best, as most species are primarily nocturnal. Spring rains often trigger mass breeding calls that can be heard from a distance. Listen for the first spring peepers as early as March in the southern parts of the state. See ourstate animal guidefor the next step.
What are the most common frog species in South Dakota?
The northern leopard frog is widespread statewide and is likely the species you will encounter most often. The boreal chorus frog and western chorus frog are common in the eastern wetlands. The American toad, a close relative of frogs, is also abundant across the state. In the Black Hills and along the eastern border, you may also find the gray tree frog. For more identification help, visit ourfrog species hub.
How can you distinguish similar-looking frogs?
Look for specific patterns: leopard frogs have round spots, while the rarer pickerel frogs have square-ish spots and yellow on their inner thighs. Chorus frogs possess three dark stripes down their back, whereas spring peepers have a distinct X-shaped mark. Gray tree frogs are recognized by their bumpy skin and the bright orange or yellow patches under their legs. Each species also has a completely unique call that can confirm your identification.
What frog-related gear or art can enhance your experience?
After a day of frog watching, consider bringing a piece of the experience home. TheRed Eyed Tree Frog Limited-Edition Printcaptures the vivid colors you might not find in South Dakota. ThePine Barrens Tree Frog Limited-Edition Printis another excellent choice. If you prefer wall art, theiCanvas Frog Green Wall Art by Jo Lynchadds a splash of nature to your space.
Red Eyed Tree Frog Limited-Edition Print
This print brings a tropical feel to any room, perfect for frog fans.Check Price and Availability
Pine Barrens Tree Frog Limited-Edition Print
A delicate portrait of one of North America's most striking amphibians.Check Price and Availability
iCanvas Frog Green Wall Art by Jo Lynch
A modern, stylish piece that celebrates frog textures and greens.Check Price and Availability
For more wildlife-themed apparel and accessories, browse ourwildlife shirt collection.
What is the largest frog in South Dakota?
The American bullfrog is the largest frog found in South Dakota, reaching lengths of up to 6 to 8 inches. They are typically found in larger, permanent bodies of water like lakes and slow-moving rivers. Their deep, resonant 'jug-o-rum' call is unmistakable. Bullfrogs are opportunistic predators that will eat almost anything they can swallow, including other frogs, insects, and even small birds.
How do South Dakota frogs survive the winter?
Frogs in South Dakota have incredible adaptations for the cold. Species like the leopard frog hibernate at the bottom of ponds that do not freeze solid, where they take in oxygen through their skin. Tree frogs and wood frogs have a 'natural antifreeze' in their blood that allows them to survive being partially frozen under leaf litter or logs on the forest floor until the spring thaw.
Frequently asked questions about South Dakota frogs
Are there tree frogs in South Dakota? Yes, the gray tree frog lives in the Black Hills and along the Missouri River. It is often seen on tree trunks near wetlands and is known for its ability to change color to match its surroundings.
What is the smallest frog in South Dakota? The spring peeper is the smallest, measuring only 0.75 to 1.2 inches. Despite their small size, their high-pitched whistling calls can be heard from over a mile away during the breeding season.
Are South Dakota frogs poisonous to touch? No native South Dakota frog is dangerously poisonous to humans. However, some toads secrete a substance that can irritate your skin or eyes, so it is always a good idea to wash your hands after handling any amphibian.
Can I find frogs in the western South Dakota plains? Yes, but they are more restricted to permanent water sources like cattle ponds, springs, and river corridors. The northern leopard frog is the most likely species to be found in these drier regions.
See ourtour planning ideasfor the next step.
Gear and field guides
Frequently asked questions
How do you identify frogs in South Dakota?+
Frogs in South Dakota vary in size, color, and call. Look for distinctive field marks like the leopard frog's spots, the gray tree frog's sticky toe pads, or the chorus frog's three dark stripes. Their calls are a reliable identifier: the American toad's long trill, the spring peeper's high-pitched whistle, and the leopard frog's snore-like growl. Identifying them often starts with listening before you ever see them.
Where in South Dakota are frogs most common?+
Your best odds are in the eastern half of the state, especially the Missouri River basin and the Prairie Pothole Region. Wetlands, cattle ponds, and floodplain forests near the James River hold high densities. In the Black Hills, look for spring peepers and boreal chorus frogs in shallow ponds and slow-moving streams. Check ourSouth Dakota wildlife hubfor more locations and spotting tips.
When is the best time to see frogs in South Dakota?+
Late April through June is prime frog activity, after the ice melts and before the summer heat dries out the shallowest waters. Evening and night hours are best, as most species are primarily nocturnal. Spring rains often trigger mass breeding calls that can be heard from a distance. Listen for the first spring peepers as early as March in the southern parts of the state. See ourstate animal guidefor the next step.
What are the most common frog species in South Dakota?+
The northern leopard frog is widespread statewide and is likely the species you will encounter most often. The boreal chorus frog and western chorus frog are common in the eastern wetlands. The American toad, a close relative of frogs, is also abundant across the state. In the Black Hills and along the eastern border, you may also find the gray tree frog. For more identification help, visit ourfrog species hub.
How can you distinguish similar-looking frogs?+
Look for specific patterns: leopard frogs have round spots, while the rarer pickerel frogs have square-ish spots and yellow on their inner thighs. Chorus frogs possess three dark stripes down their back, whereas spring peepers have a distinct X-shaped mark. Gray tree frogs are recognized by their bumpy skin and the bright orange or yellow patches under their legs. Each species also has a completely unique call that can confirm your identification.
What frog-related gear or art can enhance your experience?+
After a day of frog watching, consider bringing a piece of the experience home. TheRed Eyed Tree Frog Limited-Edition Printcaptures the vivid colors you might not find in South Dakota. ThePine Barrens Tree Frog Limited-Edition Printis another excellent choice. If you prefer wall art, theiCanvas Frog Green Wall Art by Jo Lynchadds a splash of nature to your space. ### Red Eyed Tree Frog Limited-Edition Print This print brings a tropical feel to any room, perfect for frog fans.Check Price and Availability ### Pine Barrens Tree Frog Limited-Edition Print A delicate portrait of one of North America's most striking amphibians.Check Price and Availability ### iCanvas Frog Green Wall Art by Jo Lynch A modern, stylish piece that celebrates frog textures and greens.Check Price and Availability For more wildlife-themed apparel and accessories, browse ourwildlife shirt collection.
What is the largest frog in South Dakota?+
The American bullfrog is the largest frog found in South Dakota, reaching lengths of up to 6 to 8 inches. They are typically found in larger, permanent bodies of water like lakes and slow-moving rivers. Their deep, resonant 'jug-o-rum' call is unmistakable. Bullfrogs are opportunistic predators that will eat almost anything they can swallow, including other frogs, insects, and even small birds.
How do South Dakota frogs survive the winter?+
Frogs in South Dakota have incredible adaptations for the cold. Species like the leopard frog hibernate at the bottom of ponds that do not freeze solid, where they take in oxygen through their skin. Tree frogs and wood frogs have a 'natural antifreeze' in their blood that allows them to survive being partially frozen under leaf litter or logs on the forest floor until the spring thaw.
Keep exploring
More wildlife in South Dakota