Tree Frogs in Washington: identification guide and best places to start

The Short Answer: Yes, tree frogs live throughout Washington, especially west of the Cascades. Your best bet is to listen for their calls near ponds and wetlands on warm spring evenings, or check damp gardens after rain. Two main species occur: the Pacific tree frog (most common) and the northern red-legged frog (often mistaken).

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

Pacific chorus frog photographed in Washington

Pacific chorus frog · brentnmoran CC BY-SA

Pacific chorus frog photographed in Washington

Pacific chorus frog · Matthew Gilbert Koons CC BY-ND

Pacific chorus frog photographed in Washington

Pacific chorus frog · Gavin Slater CC BY

Photos by iNaturalist observers, reused under the licence each observer chose.
Found in Washington
2
species recorded
9,655
GBIF records
August, April, May
peak months

Yes, tree frogs are in Washington. Next you'll want:

Real sighting data, source iNaturalist

13,399 verified observations on iNaturalist of tree frog have been recorded in Washington, most often in August, April, May.

When tree frog are recorded in Washington

The Short Answer: Yes, tree frogs live throughout Washington, especially west of the Cascades. Your best bet is to listen for their calls near ponds and wetlands on warm spring evenings, or check damp gardens after rain. Two main species occur: the Pacific tree frog (most common) and the northern red-legged frog (often mistaken).

1. Where are people most likely to notice tree frogs in Washington?

Tree frogs in Washington are most often found in lowland areas west of the Cascades, from the Olympic Peninsula south to the Columbia River. Look for them in wet habitats like marshes, ponds, ditches, and even suburban backyards with dense shrubs or leaf litter. During breeding season (late winter to spring), they congregate at water bodies. Check ourtree frog hubfor more details on their range.

2. What season or weather patterns help find tree frogs?

The best time is from March to May when Pacific tree frogs breed. Warm, rainy nights are ideal because frogs are more active and call loudly. On dry summer days, they hide under logs or in moist soil, so your best odds are after a rain shower. Winter? They brumate underground, so sightings are rare. For more on Washington's wildlife seasons, see ourWashington wildlife guide.

3. How can you tell a tree frog from similar species?

Pacific tree frogs (Pseudacris regilla) are small (1-2 inches) with a dark stripe through the eye and toe pads for climbing. Northern red-legged frogs are larger with red on their hind legs but no toe pads. Also, listen: Pacific tree frogs make a two-note "kreck-ek" call, while red-legged frogs have a series of low grunts. See ourtree frog identification pagefor photos.

See ourstate animal guidefor the next step.

4. What time of day are tree frogs most active?

Tree frogs are nocturnal, so activity peaks after sunset. During breeding, you may hear them calling in choruses from early evening until midnight. On overcast days, you might spot them during the day near water or in damp gardens. Use a flashlight to spot eye shine reflected in ponds.

5. What do tree frog calls sound like?

The Pacific tree frog's call is a distinctive "ribbit" or "kreck-ek" repeated every few seconds. This is the classic frog sound used in movies. Females are silent. If you hear a chorus, it means multiple males are competing. Recordings are available online to help ID them.

6. Tips for spotting tree frogs in your backyard

Create a small pond or keep a shallow dish of water in a shady spot. Plant native shrubs and ferns for cover. Check under plant pots, logs, and in compost piles after rain. Move slowly and quietly. For more ideas, browse ourwildlife-friendly gear(though you'll find apparel there, not garden supplies).

7. Show your tree frog pride with wildlife-themed apparel

If you enjoy watching tree frogs, consider wearing your interest. Easy Street Markets offers several tree frog designs that make great conversation starters.

Amazon Rainforest Upper Orinoco Tree Frog Sweatshirt

This comfortable sweatshirt features a colorful rainforest tree frog design. Perfect for cool Washington evenings.Check Price and Availability

Tree Frog T-Shirt

A classic tee with a simple tree frog graphic. Lightweight and great for hiking.Check Price and Availability

Vintage Tree Frog T-Shirt

Retro-style design for fans of vintage wildlife art. Soft cotton fabric.Check Price and Availability

See more options at ourwildlife shirt collection.

8. Frequently asked questions about tree frogs in Washington

**Are tree frogs in Washington poisonous?** No, Pacific tree frogs produce mild skin secretions that can irritate eyes but are not toxic to humans. Always wash hands after handling.

**What do tree frogs eat?** They eat small insects like mosquitoes, flies, and moths. This makes them beneficial for gardens.

**Can I keep a wild tree frog as a pet?** It is not recommended. Wild frogs have specific needs and are best left in their habitat. Instead, consider observing them or buying captive-bred species from a pet store.

**How long do tree frogs live?** In the wild, they average 2-5 years. In captivity with proper care, up to 9 years.

See ourtour planning ideasfor the next step.

Plan your trip

Best time to see tree frog in Washington: August, April, May

See the month-by-month sighting calendar.

When to go

Plan your tree frog sighting in Washington

9,655 verified tree frog records have been logged in Washington, most recently in 2026. See the GBIF records.

Where to look in Washington

Planning a trip to see tree frog? Find places to stay near Ebey's Landing National Historical Reserve on Booking.com.

Frequently asked questions

What tree frog species live in Washington?+

Tree frogs in Washington are most often found in lowland areas west of the Cascades, from the Olympic Peninsula south to the Columbia River. Look for them in wet habitats like marshes, ponds, ditches, and even suburban backyards with dense shrubs or leaf litter. During breeding season (late winter to spring), they congregate at water bodies. Check ourtree frog hubfor more details on their range.

Where can you see tree frogs in Washington?+

Tree frogs in Washington are most often found in lowland areas west of the Cascades, from the Olympic Peninsula south to the Columbia River. Look for them in wet habitats like marshes, ponds, ditches, and even suburban backyards with dense shrubs or leaf litter. During breeding season (late winter to spring), they congregate at water bodies. Check ourtree frog hubfor more details on their range.

When is the best time to see tree frogs in Washington?+

Tree frogs in Washington are most often found in lowland areas west of the Cascades, from the Olympic Peninsula south to the Columbia River. Look for them in wet habitats like marshes, ponds, ditches, and even suburban backyards with dense shrubs or leaf litter. During breeding season (late winter to spring), they congregate at water bodies. Check ourtree frog hubfor more details on their range.