New Hampshire Fish and Game Department: There are 10 species of frogs that are native to New Hampshire.
This page lists 11 species.
1 is nonnative. New Hampshire Fish and Game Department gives a total of 10; the 11 here are the frogs and toads official sources name one by one.
All 11 frogs and toads
From A to Z.
No confirmed photo of American Toad
American Toad
Anaxyrus americana
Not stated
Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Habitat: Considered habitat generalists as they are found in forested and open areas, uplands, wetlands, and suburban backyards. (New Hampshire Fish and Game Department)
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Size
Usually 6 to 8 inches long (NCWRC); can reach 8 inches or more and weigh over 2 pounds (CDFW). Missouri gives 3.5 to 6 inches snout to vent, occasionally to 8.75.
How to recognize it
No ridge (dorsolateral fold) down each side of the back
Large round eardrum: about twice the eye in males, about eye-sized in females
Fully webbed hind feet, longest toe extends past the webbing
Habitat: Found near larger bodies of water such as the shorelines of lakes, ponds, bogs, and slow-moving rivers. Requires emergent vegetation for cover. Often seen at water’s edge sitting on partially submerged logs. (New Hampshire Fish and Game Department)
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Size
Most are 1.5 to 2.5 inches long (not counting legs); adult females can exceed 6 inches. Any Florida treefrog over 3 inches is almost certainly a Cuban treefrog.
How to recognize it
Very large toe pads, much larger than native treefrogs'.
Large 'bug eyes'.
Warty back but no warts on top of the head; skin on the head fused to the skull once the frog is over about 1 inch long.
NH threatened; Species of Greatest Conservation Need
What the sources say
Habitat: Sandy areas such as river valleys, floodplains, lakeshores, and agricultural areas. Also in pine forests, fields, and lawns. (New Hampshire Fish and Game Department)
Habitat: Forested areas with small trees or shrubs that are close to water. Found under loose bark on trees, tree cavities, or in rotting logs during summer. Seldom seen on the ground. (New Hampshire Fish and Game Department)
Habitat: Found in a variety of permanent and semi-permanent freshwater habitats including the shorelines of ponds, lakes, and streams, vernal pools, moist woodlands, bogs, and ditches. (New Hampshire Fish and Game Department)
Habitat: Found in cold water often on the borders of lakes and ponds and points where streams run into them. Often found in shallow open water with emergent vegetation, especially lily pads and pickerelweed. (New Hampshire Fish and Game Department)
NH species of special concern; Species of Greatest Conservation Need
What the sources say
Habitat: May be found in slow streams, marshes, bogs, or ponds. During summer most often found in wet meadows or fields associated with river floodplains. (New Hampshire Fish and Game Department)
Habitat: Usually found near water or moist woodland areas. Edges of lakes and ponds, streams, wet pastures and fields are places pickerel frogs can be found. Dense vegetation is used for cover along aquatic environments. (New Hampshire Fish and Game Department)
Habitat: Often found in wet wooded areas often near swamps or ponds. Also found in fields, meadows, and forests. (New Hampshire Fish and Game Department)
No confirmed photo of Wood Frog
Wood Frog
Lithobates sylvatica
Not stated
Venom
No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Habitat: Terrestrial, found in various wooded habitats. Also found along the vegetated edges of ponds and streams, wooded wetlands, and bogs. (New Hampshire Fish and Game Department)
Bullfrogs lack the dorsolateral ridges that green frogs have.
Photos show typical adults; individuals vary. Never get close to compare.
When frogs and toads are active in New Hampshire
Records of frogs and toads in New Hampshire peak in May to August. They show when people record frogs and toads, not how many there are (about month bars).
JanFebMarAprMayJunJulAugSepOctNovDec
2,236 records of frogs and toads in New Hampshire by month (GBIF, CC0 and CC BY records).
How to report
NH Fish and Game Wildlife Division (603) 271-2461; Law Enforcement (603) 271-3361. Invasive insects: NHBugs reporting form (nhbugs.org/reporting-form). Stranded marine animals: Seacoast Science Center (603) 997-9448 or the Northeast hotline (866) 755-6622. Sharks: Northeast Shark Hotline (401) 859-1043. New Hampshire Fish and Game Department
About this list
The species list comes from Frogs of New Hampshire; Species Occurring in NH (New Hampshire Fish and Game Department, Internet Archive capture 2025-11-10 of the undated official page). 11 more entries come from other official sources named on each card.
Venom labels come only from official sources and link to them; "Not stated" never means harmless. How labels work.
Snakes of NH (old site page). New Hampshire Fish and Game Department. archived copy, captured August 1, 2023; checked November 3, 2026.
Frogs of New Hampshire. New Hampshire Fish and Game Department. archived copy, captured November 10, 2025; checked November 3, 2026.Quoted passages (1)
“There are 10 species of frogs that are native to New Hampshire.”
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