16 Types of Frogs in Indiana
Indiana is home to around 16 frog and toad species. This guide covers the most common ones, their key field marks, where to find them across the state, and the best times to look. Start with the American bullfrog and green frog they are widespread and easy to spot.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 6, 2026.
- 8
- species recorded
- May, June, April
- peak months
Verified species, source iNaturalist
16 types of frogs recorded in Indiana
16 frog species have a verified observation record in Indiana, each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.
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Also recorded in Indiana
| # | Species | Scientific name | Records |
|---|---|---|---|
| 13 | Pickerel FrogLithobates palustris | Lithobates palustris | 271 |
| 14 | Green TreefrogDryophytes cinereus | Dryophytes cinereus | 64 |
| 15 | Boreal Chorus FrogPseudacris maculata | Pseudacris maculata | 51 |
| 16 | Eastern SpadefootScaphiopus holbrookii | Scaphiopus holbrookii | 37 |
Plus 7 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
18,474 verified observations on iNaturalist of frog have been recorded in Indiana, most often in May, June, April.
When frog are recorded in Indiana
Indiana is home to around 16 frog and toad species. This guide covers the most common ones, their key field marks, where to find them across the state, and the best times to look. Start with the American bullfrog and green frog they are widespread and easy to spot.
1. What Are the Most Common Frogs in Indiana?
The most widespread frogs in Indiana are the American bullfrog, green frog, northern leopard frog, and spring peeper. Bullfrogs are large (up to 8 inches) with a distinct tympanum eardrum larger than the eye. Green frogs are smaller, olive to brown, with ridges down the back. Leopard frogs have dark spots outlined in light. Spring peepers are tiny and heard before seen, with a single dark cross on the back.
2. Where in Indiana Can You Find Frogs Most Often?
Frogs in Indiana are most abundant in and around permanent water bodies: ponds, lakes, marshes, slow streams, and flooded ditches. Start with state wildlife areas like Goose Pond FWA, Muscatatuck NWR, and the marshes along the Kankakee River. In central Indiana, Eagle Creek Park and Fort Harrison are reliable. Even suburban backyard ponds host green frogs and leopard frogs. Always check wetland edges at dawn or dusk.
3. When Is the Best Time to Spot Frogs in Indiana?
The peak frog activity runs from late March to early July. Spring rains and warming nights trigger breeding choruses. Mid April through May is prime for most species. Summer heat pushes frogs into night feeding. Early morning (just after sunrise) on humid days offers the best odds of seeing them basking. Fall sightings taper off by October when frogs enter brumation.
See ourstate animal guidefor the next step.
4. How Can You Tell Apart Similar Looking Frog Species?
Pay attention to size, dorsal ridges, and call. The green frog and bullfrog are often confused: green frogs have two dorsolateral ridges that run down the back; bullfrogs lack these ridges. Leopard frogs and pickerel frogs both have spots, but pickerel frogs have square shaped spots in two rows and a yellow underside. Call differences are reliable bullfrogs make a deep jug-o-rum, green frogs a banjo-like twang, and leopard frogs a long snore with chuckles.
5. What Habitat Do Different Indiana Frogs Prefer?
Each species has preferences. Spring peepers and chorus frogs breed in ephemeral ponds and wet meadows. Green frogs and bullfrogs stay in permanent water with dense vegetation. Northern leopard frogs range farther into grassy fields and pastures during summer. The rare crawfish frog uses crawfish burrows in open prairies. For more about frog biology, check out ourfrog hub page.
6. Are There Any Rare or Protected Frog Species in Indiana?
Yes. The crawfish frog and plains leopard frog are state endangered. The bird voiced tree frog is rare in the southernmost counties. Blanchard's cricket frog has declined across the Midwest. Indiana classifies these as species of greatest conservation need. If you spot one, report it to the Indiana DNR. The Indiana DNR offers a helpfulwildlife viewing guidefor these species.
7. What Gear Makes Frog Spotting Easier in Indiana?
You do not need much beyond rubber boots, a flashlight with a red filter, and a field guide. To capture the moment, consider a limited-edition art print that reminds you of your finds. One option is theRed Eyed Tree Frog Limited-Edition Print. Another is thePine Barrens Tree Frog Limited-Edition Print. Both make great wall art.Check Price and Availability. Wear a wildlife themedt shirtto stay comfortable in the field.
Pine Barrens Tree Frog Limited-Edition Print
Product from otherCheck Price and Availability
Wall art print: Frog by Eimear Maguire on Artfully Walls. Illustration, Animals, framed or unframed art printed on fine art paper
Product from otherCheck Price and Availability
8. Can You Attract Frogs to Your Backyard?
Yes, with a small pond that has shallow edges, native plants, and no fish. Provide leaf litter and logs for cover. Avoid pesticides and herbicides. Male frogs will call from the water in spring. Even a half barrel pond can attract green frogs and leopard frogs. For more frog friendly ideas, see ourfrog habitat section.
See ourtour planning ideasfor the next step.
Gear and field guides
Frequently asked questions
1. What Are the Most Common Frogs in Indiana?+
The most widespread frogs in Indiana are the American bullfrog, green frog, northern leopard frog, and spring peeper. Bullfrogs are large (up to 8 inches) with a distinct tympanum eardrum larger than the eye. Green frogs are smaller, olive to brown, with ridges down the back. Leopard frogs have dark spots outlined in light. Spring peepers are tiny and heard before seen, with a single dark cross on the back.
2. Where in Indiana Can You Find Frogs Most Often?+
Frogs in Indiana are most abundant in and around permanent water bodies: ponds, lakes, marshes, slow streams, and flooded ditches. Start with state wildlife areas like Goose Pond FWA, Muscatatuck NWR, and the marshes along the Kankakee River. In central Indiana, Eagle Creek Park and Fort Harrison are reliable. Even suburban backyard ponds host green frogs and leopard frogs. Always check wetland edges at dawn or dusk.
3. When Is the Best Time to Spot Frogs in Indiana?+
The peak frog activity runs from late March to early July. Spring rains and warming nights trigger breeding choruses. Mid April through May is prime for most species. Summer heat pushes frogs into night feeding. Early morning (just after sunrise) on humid days offers the best odds of seeing them basking. Fall sightings taper off by October when frogs enter brumation. See ourstate animal guidefor the next step.
4. How Can You Tell Apart Similar Looking Frog Species?+
Pay attention to size, dorsal ridges, and call. The green frog and bullfrog are often confused: green frogs have two dorsolateral ridges that run down the back; bullfrogs lack these ridges. Leopard frogs and pickerel frogs both have spots, but pickerel frogs have square shaped spots in two rows and a yellow underside. Call differences are reliable bullfrogs make a deep jug-o-rum, green frogs a banjo-like twang, and leopard frogs a long snore with chuckles.
5. What Habitat Do Different Indiana Frogs Prefer?+
Each species has preferences. Spring peepers and chorus frogs breed in ephemeral ponds and wet meadows. Green frogs and bullfrogs stay in permanent water with dense vegetation. Northern leopard frogs range farther into grassy fields and pastures during summer. The rare crawfish frog uses crawfish burrows in open prairies. For more about frog biology, check out ourfrog hub page.
6. Are There Any Rare or Protected Frog Species in Indiana?+
Yes. The crawfish frog and plains leopard frog are state endangered. The bird voiced tree frog is rare in the southernmost counties. Blanchard's cricket frog has declined across the Midwest. Indiana classifies these as species of greatest conservation need. If you spot one, report it to the Indiana DNR. The Indiana DNR offers a helpfulwildlife viewing guidefor these species.
7. What Gear Makes Frog Spotting Easier in Indiana?+
You do not need much beyond rubber boots, a flashlight with a red filter, and a field guide. To capture the moment, consider a limited-edition art print that reminds you of your finds. One option is theRed Eyed Tree Frog Limited-Edition Print. Another is thePine Barrens Tree Frog Limited-Edition Print. Both make great wall art.Check Price and Availability. Wear a wildlife themedt shirtto stay comfortable in the field. ### Pine Barrens Tree Frog Limited-Edition Print Product from otherCheck Price and Availability ### Wall art print: Frog by Eimear Maguire on Artfully Walls. Illustration, Animals, framed or unframed art printed on fine art paper Product from otherCheck Price and Availability
8. Can You Attract Frogs to Your Backyard?+
Yes, with a small pond that has shallow edges, native plants, and no fish. Provide leaf litter and logs for cover. Avoid pesticides and herbicides. Male frogs will call from the water in spring. Even a half barrel pond can attract green frogs and leopard frogs. For more frog friendly ideas, see ourfrog habitat section. See ourtour planning ideasfor the next step.