Frogs in Maryland: identification guide and best places to start
Frogs do show up in Maryland, 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.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Eastern American Toad 路 Public domain CC0
Green Treefrog 路 Judy Gallagher CC BY-SA
Wood Frog 路 froggymum CC BY
- 8
- species recorded
- May, June, April
- peak months
Verified species, source iNaturalist
19 types of frogs recorded in Maryland
19 frog species have a verified observation record in Maryland, each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.
1 of the 19 shown is recorded as introduced to Maryland rather than native.
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Also recorded in Maryland
| # | Species | Scientific name | Records |
|---|---|---|---|
| 13 | Eastern SpadefootNativeScaphiopus holbrookii | Scaphiopus holbrookii | 367 |
| 14 | New Jersey Chorus FrogPseudacris kalmi | Pseudacris kalmi | 96 |
| 15 | Upland Chorus FrogNativePseudacris feriarum | Pseudacris feriarum | 66 |
| 16 | Eastern Narrow-mouthed ToadGastrophryne carolinensis | Gastrophryne carolinensis | 19 |
| 17 | Atlantic Coast Leopard FrogLithobates kauffeldi | Lithobates kauffeldi | 17 |
| 18 | Squirrel Tree FrogIntroducedDryophytes squirellus | Dryophytes squirellus | 16 |
| 19 | Barking Tree FrogDryophytes gratiosus | Dryophytes gratiosus | 11 |
Plus 4 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
43,723 verified observations on iNaturalist of frog have been recorded in Maryland, most often in May, June, April.
When frog are recorded in Maryland
Frogs do show up in Maryland, 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.
1. Where are you most likely to notice frogs in Maryland?
Frogs in Maryland are most noticeable around standing water: ponds, marshes, slow streams, and even rain-filled ditches. Backyard ponds and wetland edges like those in the Chesapeake Bay watershed offer reliable sightings. Check out thefrog hubfor general identification tips.
In Maryland, frogs 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.
2. What season or weather patterns help with frog spotting?
Late March through early June is prime time for breeding calls, especially after warm rains. Overcast, humid evenings in spring trigger the loudest choruses. Summer nights are good but less active. Fall is quieter, though some species linger near water before hibernation.
3. What simple ID cues separate frogs from lookalikes?
Listen for distinct calls: spring peepers have a high-pitched peep, green frogs make a banjo-like twang. Look for skin texture (smooth or warty) and toe pads (tree frogs have enlarged pads). Compare sizes: bullfrogs can be 6 inches, while chorus frogs stay under 2 inches. For more details, visit theMaryland wildlife page.
See ourstate animal guidefor the next step.
4. Which frog species are most common in Maryland?
The green frog and bullfrog are widespread in permanent water. Spring peeper and gray tree frog dominate woodlands. In coastal areas, the southern leopard frog appears. Each has a unique call and habitat preference. Thefrog hublists all Maryland species.
5. When is the best time of day to see frogs?
Dusk and dawn are best, especially after rain. During the day, look under logs or in shaded vegetation. Use a flashlight with a red filter to avoid startling them. Spring evenings from 7 to 10 PM are peak activity for many species.
6. How can you identify frogs by their calls?
Learn common calls: spring peeper (single high note), gray tree frog (trill), green frog (plunk-like twang), bullfrog (deep jug-o-rum). Free apps like iNaturalist can help. Practice near wetlands in April for the clearest lessons.
7. What should you do if you find a frog?
Observe from a distance and avoid handling if possible. If you must move one, wet your hands first to protect its skin. Note the location, time, and call to report to group science projects like the Maryland Amphibian Atlas. For more on supporting local frogs, check outwildlife shirts.
8. Frogs in Maryland: wrap up and resources
After exploring Maryland's frogs, consider bringing the experience home with frog-themed art prints. Below are a few favorites:
Red Eyed Tree Frog Limited-Edition Print
A vibrant print capturing this classic tree frog, perfect for a naturalist's wall.Check Price and Availability
Pine Barrens Tree Frog Limited-Edition Print
Showcases a rare species found in the Pine Barrens, ideal for collectors.Check Price and Availability
Wall art print: Frog by Eimear Maguire
An artistic illustration that adds a touch of nature to any room.Check Price and Availability
9. Frequently Asked Questions about frogs in Maryland
**Q: Are there poisonous frogs in Maryland?** A: No native frogs are dangerous to humans. Some have mild skin toxins that can irritate eyes or mouth, but none are lethal.
**Q: What is the largest frog in Maryland?** A: The bullfrog (Lithobates catesbeianus) can reach 8 inches and weigh over a pound.
**Q: When do frogs start calling in Maryland?** A: Typically in late March, with peak breeding in April and May.
**Q: Can I keep a frog as a pet in Maryland?** A: Collecting wild frogs is discouraged. Captive-bred species like the African clawed frog are better options.
See ourtour planning ideasfor the next step.
Gear and field guides
Plan your trip
Best time to see frog in Maryland: May, June, April
See the month-by-month sighting calendar.
Plan your frog sighting in Maryland
Where to look in Maryland
- Antietam National Battlefield 路 Wildlife Watching, Birdwatching 路 Find hotels
- Appalachian National Scenic Trail 路 Wildlife Watching, Birdwatching 路 Find hotels
- Assateague Island National Seashore 路 Wildlife Watching, Birdwatching 路 Find hotels
- Captain John Smith Chesapeake National Historic Trail 路 Wildlife Watching, Birdwatching 路 Find hotels
- Chesapeake & Ohio Canal National Historical Park 路 Wildlife Watching, Birdwatching 路 Find hotels
- Chesapeake Bay 路 Wildlife Watching 路 Find hotels
Frequently asked questions
What frog species live in Maryland?+
Frogs in Maryland are most noticeable around standing water: ponds, marshes, slow streams, and even rain-filled ditches. Backyard ponds and wetland edges like those in the Chesapeake Bay watershed offer reliable sightings. Check out thefrog hubfor general identification tips. In Maryland, frogs 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 frogs in Maryland?+
Frogs in Maryland are most noticeable around standing water: ponds, marshes, slow streams, and even rain-filled ditches. Backyard ponds and wetland edges like those in the Chesapeake Bay watershed offer reliable sightings. Check out thefrog hubfor general identification tips. In Maryland, frogs 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 frogs in Maryland?+
Frogs in Maryland are most noticeable around standing water: ponds, marshes, slow streams, and even rain-filled ditches. Backyard ponds and wetland edges like those in the Chesapeake Bay watershed offer reliable sightings. Check out thefrog hubfor general identification tips. In Maryland, frogs 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.
Keep exploring
More places to see frog
More wildlife in Maryland
Common questions about frogs