What drives the risk for expensive homes in Idaho
- Catastrophe exposureWildfire, flooding and severe storms are Idaho's most common natural disasters. The state also has real earthquake risk, and its hazard planning treats flood, wildfire and seismic events as the main risks to private property. Source
- FloodFlood is excluded from homeowners policies and NFIP caps building coverage at $250,000. Expensive riverfront and lakefront homes, such as those in the Wood River Valley or on Lake Coeur d'Alene and Payette Lake, may need private or excess flood coverage. Source
Idaho by the numbers
| Measure | Idaho | Rank among the states | Detail |
|---|---|---|---|
| Federal major disaster declarations since 2000 | 17 | #41 of 51 | Most often for flood (9), severe storm (6), fire (1). Kootenai County has been in 7 of them. |
| National Flood Insurance Program claims, 2005–2025 | 602 | #48 of 51 | $6.2 million paid; 47% of claims with a known flood zone were outside FEMA’s high-risk zones. |
| Homes in high-risk flood zones with a federal flood policy | 15% | #39 of 50 | 2,076 policies for 13,801 homes in the counties FEMA can measure; US: 40%. |
| Hail reports, 2016–2025 | 219 | #39 of 51 | 7 of them 2 inches or larger. Largest stone 2.75 inches, Idaho County, August 2019. |
| Tornadoes, 2016–2025 | 20 | #41 of 51 | 0 rated EF2 or stronger; 226 recorded since 1950. |
| Earthquakes of magnitude 4.0+, 2000–2025 | 75 | #7 of 51 | Largest: magnitude 6.5, Stanley, Idaho, March 31, 2020. |
From the public FEMA, NOAA, Storm Prediction Center, USGS and FMCSA records behind each linked report; ranks count all 50 states and Washington, DC unless noted.
When the standard market says no, and what earns credits
- Insurer of last resort and wind poolsIdaho has no FAIR plan or other state insurer of last resort for homes. Owners turned down by admitted insurers generally turn to the surplus lines market. Instead of a FAIR plan, the Department of Insurance has floated a wildfire reinsurance and mitigation approach. Source
- Mitigation credits and programsIdaho has no state grant or mandatory insurance credit for wildfire hardening; bills to create a wildfire risk mitigation grant fund (such as 2025's H 384) were not enacted. The Department of Insurance publishes home-hardening guidance, including clearing the 5-foot zone around the house, ember-resistant vents and Class A roofing. Source
Worth knowing in Idaho
Many of Idaho's most expensive homes sit in the wildland-urban interface, above all in the Wood River Valley around Sun Valley, which the Idaho Department of Lands describes as high to very high wildfire risk. As wildfire risk drives pricing and renewals, defensible space and ember-resistant construction matter for staying insurable. Source
Where high-value homes are in Idaho
Sun Valley and Ketchum · Coeur d'Alene (lakefront) · Eagle · Boise Foothills and North End · McCall (Payette Lake) · Sandpoint
Common questions
Where can an expensive home in Idaho get coverage if insurers decline it?
Idaho has no FAIR plan or other state insurer of last resort for homes. Owners turned down by admitted insurers generally turn to the surplus lines market. Instead of a FAIR plan, the Department of Insurance has floated a wildfire reinsurance and mitigation approach.
Is flood insurance enough for a high-value home in Idaho?
Flood is excluded from homeowners policies and NFIP caps building coverage at $250,000. Expensive riverfront and lakefront homes, such as those in the Wood River Valley or on Lake Coeur d'Alene and Payette Lake, may need private or excess flood coverage.
Sources
- Idaho: Catastrophe exposure
- Idaho: Insurer of last resort and wind pools
- Idaho: Mitigation credits and programs
- Idaho: Flood
- Idaho: Also worth knowing
General information as of October 2026, not legal advice; confirm current rules with the agency.