Are There Cicadas in Idaho?
Cicadas are present in Idaho but less common than in warmer states. Annual cicada species occur across much of the state, particularly in forested regions and lower elevations. The cooler climate and shorter growing season of Idaho limit cicada diversity compared to southern states. Summer visitors and residents may hear occasional cicada sounds in suitable habitats.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.
Cassin's 17-year Cicada · Nick Tobler (Cowturtle) CC BY
Dark Lyric Cicada · Cecil Smith CC BY
Prairie Cicada · Peter Chen 2.0 CC BY
- 8
- species recorded
- 259
- GBIF records
- June, July, May
- peak months
Yes, cicadas are in Idaho. Next you'll want:
Real sighting data, source iNaturalist
694 verified observations on iNaturalist of cicada have been recorded in Idaho, most often in June, July, May.
When cicada are recorded in Idaho
Cicadas are present in Idaho but less common than in warmer states. Annual cicada species occur across much of the state, particularly in forested regions and lower elevations. The cooler climate and shorter growing season of Idaho limit cicada diversity compared to southern states. Summer visitors and residents may hear occasional cicada sounds in suitable habitats.
Where Cicadas Are Found in Idaho
Cicadas occur throughout much of Idaho, though their distribution is less extensive than in warmer states. They are most commonly found in the forested regions of central and northern Idaho, including areas within the Wallowa-Whitman National Forest and other protected forest lands. The warmer, lower-elevation valleys and foothills throughout the state support cicada populations more reliably than higher mountain elevations. The Salmon River drainage in central Idaho provides habitat for cicadas in its forested watershed. Southern Idaho, particularly around the Boise area and lower Payette River valley, contains cicada populations in suitable woodlands. Western Idaho's Blue Mountains and surrounding forests host cicadas adapted to the cooler Pacific Northwest climate. Elevation plays a significant role in Idaho cicada distribution, with cicadas becoming less common above 5,000 feet where growing seasons are too short for their multi-year development cycles. Visit/wildlife/idahoto learn about the full range of insects throughout the state.
Season and Timing
In Idaho, annual cicadas emerge later and have a shorter active season compared to southern states, typically beginning in late July and peaking through August and into early September. The delayed emergence reflects Idaho's cooler spring and shorter growing season. Some species may emerge as late as August in higher elevations or northern regions. Once emerged, adult cicadas live for four to six weeks, similar to cicadas elsewhere. Periodical cicadas, emerging on 13-year or 17-year cycles, have occurred historically in limited portions of Idaho but are not as frequent or abundant as in eastern or midwestern states. Soil temperature accumulation drives emergence timing, and Idaho's cooler climate means this process takes longer than in warmer regions. The buzzing and calling sounds are concentrated in late July through August, making this the prime season to hear and observe Idaho cicadas. Exact timing varies with elevation and local weather conditions. Learn more about/wildlife/idaho/cicadaemergence patterns in your specific region.
How to Identify a Cicada
Idaho cicadas are sturdy insects, typically one to two inches long, with strong bodies and clear or smoky wings held tent-like over their backs. Most species are brown, tan, or black in coloration, though some display reddish or greenish tones on parts of the body. Males produce the loud buzzing and rasping calls associated with cicadas using drumlike membranes called tymbals on their abdomens. Females lack tymbals and produce no sound. Cicada eyes are simple and arranged on the head in patterns different from other insects. Their legs are short and stout, well adapted for climbing tree bark rather than jumping or running. The wings show distinctive vein patterns that vary by species. Molted exoskeletons are frequently found on tree trunks, vegetation, and buildings during late summer, appearing as hollow, papery, tan-brown shells about one to two inches in length with wings still attached. For more on cicada in Idaho, see ourIdaho cicada guide.
Where Sightings Concentrate in Idaho
In Idaho, cicadas concentrate in forested and wooded areas where trees are abundant. Oak, ash, pine, Douglas fir, and ponderosa pine forests throughout lower elevations of central and southern Idaho consistently host cicada populations. The Wallowa-Whitman National Forest and other protected forest lands provide prime habitat. Forested valleys and lower mountain slopes provide better conditions than high-elevation plateaus or mountain peaks. Riparian areas along rivers including the Salmon River, Payette River, Boise River, and their tributaries support cicada populations. Residential yards with mature trees in Boise, Coeur d'Alene, and other towns may host cicadas during late summer. Urban trees, including ash, oak, and fruit trees, can support cicada activity. The warmer microclimates of south-facing slopes and valley bottoms attract higher concentrations than exposed ridgetops. Suitable cicada habitat is patchier in Idaho than in warmer states. Explore/wildlifeto find other insects and animals throughout Idaho's diverse ecosystems.
Typical Cicada Behavior
Cicadas in Idaho spend most of their lives as underground nymphs, typically four to five years depending on species and growing conditions. The cooler Idaho climate means development takes longer than in warmer regions. Nymphs feed on sap from tree and shrub roots, growing and molting underground through multiple stages. Once they emerge as adults, cicadas are focused entirely on finding mates and reproducing. Males produce loud buzzing and rasping sounds to attract females. These calls can reach 80 to 90 decibels and are generated using specialized abdominal structures. After mating, females lay eggs by cutting slits in tree bark and twigs. Eggs typically hatch in one to three weeks. Adult cicadas feed on plant sap using needle-like mouthparts. They are weak fliers and prefer to climb and jump among branches. Cicadas are attracted to outdoor lights at night. Their presence in Idaho forests represents successful adaptation to cooler-climate habitats. You can also browseIdaho wildlife.
Coexistence and Safety Notes
Cicadas are completely harmless to humans and pose no safety concerns whatsoever in Idaho or elsewhere. They do not bite, sting, or inject venom, and they do not transmit diseases to people or pets. While their loud sounds can reach 80 to 90 decibels in groups, this noise is normal and temporary. Idaho has no restrictions on native cicadas, which are beneficial insects supporting the local food chain and ecosystem. Cicadas provide important nutrition for birds, squirrels, and other wildlife throughout Idaho's forests. The large predatory wasps called cicada killer wasps hunt cicadas but are solitary insects and not aggressive toward humans. Minor tree damage from cicada egg-laying is rarely a concern on established trees. If protecting young ornamental or fruit trees is desired, netting or bark sleeves can minimize egg-laying damage. Cicadas should be appreciated as normal components of Idaho's summer wildlife. Their presence indicates healthy forests and natural ecological processes functioning properly.
Species People Confuse with Cicadas
Cicadas are sometimes confused with grasshoppers, crickets, and katydids, as all produce sounds associated with summer and warm weather. However, these insects are distinctly different. Grasshoppers have long hind legs adapted for powerful jumping and produce sounds by rubbing legs together. Crickets have long antennae and create sounds by rubbing wings together, producing different patterns than cicadas. Katydids have large, leafy wings and are often green, producing a distinctive "katy-did" call. Idaho also has cicada killer wasps, large predatory wasps that hunt cicadas for food, but these wasps are entirely different insects and not related to cicadas. Some people mistake cicada exit holes on soil for damage from other pests, but these are characteristic quarter-inch diameter openings forming in neat clusters near tree bases. Learning to distinguish cicadas from these similar insects helps people correctly identify them in Idaho's varied ecosystems.
Frequently Asked Questions
Q: Why are cicadas less common in Idaho than in southern states? A: Idaho's cooler climate, shorter growing season, and higher elevations limit cicada diversity. The long development time of nymphs requires warmer conditions than much of Idaho provides year-round. Q: When is the best time to hear cicadas in Idaho? A: Late July through August is the peak season for cicada sounds in Idaho. Earlier or later dates are possible depending on elevation and weather conditions. Q: Do periodical cicadas emerge in Idaho? A: Periodical cicadas have occurred in limited portions of Idaho historically, but they are not as common or conspicuous as in eastern or midwestern states. Q: How can I learn more about cicadas in my area? A: Local university extension services and wildlife agencies provide information about/wildlife/idaho/cicadain specific regions. Contacting the Idaho Department of Fish and Game offers location-specific guidance for your area.
Plan your cicada sighting in Idaho
259 verified cicada records have been logged in Idaho, most recently in 2026. See the GBIF records.
Where to look in Idaho
- City Of Rocks National Reserve · Wildlife Watching, Birdwatching · Find hotels
- Craters Of The Moon National Monument & Preserve · Wildlife Watching, Birdwatching · Find hotels
- Hagerman Fossil Beds National Monument · Wildlife Watching, Birdwatching · Find hotels
- Lewis & Clark National Historic Trail · Wildlife Watching · Find hotels
- Nez Perce National Historical Park · Wildlife Watching, Birdwatching · Find hotels
- Yellowstone National Park · Wildlife Watching, Birdwatching · Find hotels
More places to see cicada
More wildlife in Idaho