Utah: 29 counties covered
Across 29 Utah counties with a FEMA flood score, the average national percentile is 32.1 — but that average hides real spread between counties, which is why each one gets its own page rather than a single statewide number.
- Salt Lake County — 92.9th percentile, Relatively Moderate
- Utah County — 90.5th percentile, Relatively Moderate
- Davis County — 59.5th percentile, Relatively Low
- Weber County — 67.6th percentile, Relatively Low
- Washington County — 93.4th percentile, Relatively High
- Cache County — 45.8th percentile, Relatively Low
- Tooele County — 18.3th percentile, Very Low
- Iron County — 44.6th percentile, Relatively Low
- Box Elder County — 19.5th percentile, Very Low
- Summit County — 49.6th percentile, Relatively Low
- Uintah County — 10.3th percentile, Very Low
- Wasatch County — 32.3th percentile, Very Low
- Sanpete County — 24.5th percentile, Very Low
- Sevier County — 22.1th percentile, Very Low
- Duchesne County — 15.3th percentile, Very Low
- Carbon County — 22.8th percentile, Very Low
- San Juan County — 24th percentile, Very Low
- Millard County — 16.3th percentile, Very Low
- Juab County — 4.8th percentile, Very Low
- Morgan County — 10.7th percentile, Very Low
- Emery County — 12.4th percentile, Very Low
- Grand County — 25.4th percentile, Very Low
- Kane County — 56.4th percentile, Relatively Low
- Beaver County — 8th percentile, Very Low
- Garfield County — 48.8th percentile, Relatively Low
- Rich County — 3th percentile, Very Low
- Wayne County — 6.9th percentile, Very Low
- Piute County — 3.4th percentile, Very Low
- Daggett County — 0.9th percentile, Very Low