Idaho: 44 counties covered

Across 44 Idaho counties with a FEMA flood score, the average national percentile is 43.2 — but that average hides real spread between counties, which is why each one gets its own page rather than a single statewide number.

• Ada County — 89.8th percentile, Relatively Moderate
• Canyon County — 80.3th percentile, Relatively Moderate
• Kootenai County — 86.3th percentile, Relatively Moderate
• Bonneville County — 78.6th percentile, Relatively Moderate
• Twin Falls County — 51.1th percentile, Relatively Low
• Bannock County — 51.9th percentile, Relatively Low
• Madison County — 57.8th percentile, Relatively Low
• Bonner County — 87th percentile, Relatively Moderate
• Bingham County — 58.8th percentile, Relatively Low
• Nez Perce County — 57.7th percentile, Relatively Low
• Latah County — 50.4th percentile, Relatively Low
• Jefferson County — 37.1th percentile, Relatively Low
• Elmore County — 30.1th percentile, Very Low
• Payette County — 33.9th percentile, Very Low
• Jerome County — 31.1th percentile, Very Low
• Cassia County — 52.7th percentile, Relatively Low
• Blaine County — 70.5th percentile, Relatively Low
• Minidoka County — 32.1th percentile, Very Low
• Gem County — 35.7th percentile, Relatively Low
• Idaho County — 72.9th percentile, Relatively Low
• Gooding County — 25.9th percentile, Very Low
• Franklin County — 17.4th percentile, Very Low
• Fremont County — 41.4th percentile, Relatively Low
• Shoshone County — 76th percentile, Relatively Moderate
• Boundary County — 45.8th percentile, Relatively Low
• Teton County — 28th percentile, Very Low
• Valley County — 55.8th percentile, Relatively Low
• Owyhee County — 58.7th percentile, Relatively Low
• Washington County — 38.2th percentile, Relatively Low
• Benewah County — 46.9th percentile, Relatively Low
• Clearwater County — 55.7th percentile, Relatively Low
• Boise County — 42.9th percentile, Relatively Low
• Lemhi County — 59.8th percentile, Relatively Low
• Power County — 7.6th percentile, Very Low
• Caribou County — 10.7th percentile, Very Low
• Bear Lake County — 7.2th percentile, Very Low
• Lincoln County — 14.4th percentile, Very Low
• Adams County — 35.9th percentile, Relatively Low
• Oneida County — 4.9th percentile, Very Low
• Custer County — 57.3th percentile, Relatively Low
• Lewis County — 12th percentile, Very Low
• Butte County — 9.1th percentile, Very Low
• Camas County — 3.4th percentile, Very Low
• Clark County — 2.1th percentile, Very Low