15 flood insurance claims·$35,504 paid·5 federal flood & hurricane disasters
Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.
Shaded areas are FEMA’s mapped flood hazard zones in and around Sevier County, Utah. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.
In flood insurance claims here that reported a flood depth, the average was 2 inches.
Drawn to scale against an 80-inch door. Even a few inches soaks flooring, the bottom of the drywall and anything plugged in near the floor.
Average of the depths reported on claims (zero and implausible values left out); FEMA’s record doesn’t say exactly where each depth was measured. Source: OpenFEMA NFIP claims.
The worst year was 1983, with 9 claims and $32,526 paid, the year of Severe Storms, Landslides & Flooding.
Bar height is scaled by square root so ordinary years stay visible next to the worst one. NFIP claims by year of loss. Source: OpenFEMA.
1 NOAA storm reports from Sevier County describe what happened, in the words of the forecasters who covered it. Read the Utah flood stories →
9 federal disaster declarations since 1977, 5 of them floods, coastal storms or hurricanes.
| Disaster | Began |
|---|---|
| Monroe Canyon Fire | Jul 13, 2025 |
| Flooding | Apr 18, 2011 |
| Hurricane Katrina Evacuation | Aug 29, 2005 |
| Flooding And Landslides | Apr 28, 2005 |
| Severe Storms, Mudslides, Landslides & Flooding | Aug 17, 1984 |
| Severe Storms, Landslides & Flooding | Apr 13, 1983 |
| Drought | Jan 20, 1977 |
Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.
14 since 1996: 12 flash floods and 2 river or area floods.
| Event | Date | Damage |
|---|---|---|
| Flash Flood | Jul 14, 2018 | $1.0M |
| Flash Flood | Aug 4, 2018 | — |
| Flash Flood | Jul 19, 2017 | — |
| Flood | May 23, 2011 | $100,000 |
| Flash Flood | Aug 3, 2011 | — |
| Flood | Jun 1, 2011 | $150,000 |
| Flash Flood | Aug 18, 2010 | — |
| Flash Flood | Aug 3, 2010 | — |
— = no damage estimate in the record. Source: NOAA Storm Events Database.
Flash Flood · Jul 14, 2018. Strong thunderstorms continued to produce flash flooding over central and southern Utah in mid-July. Some thunderstorms also produced some gusty winds over northwest Utah during the evening of July 16.
Flash Flood · Aug 4, 2018. Thunderstorms formed across Utah during the first few days of August, producing strong gusty winds over the northwest deserts of Utah and flash flooding over portions of southern Utah.
Flash Flood · Jul 19, 2017. Widespread thunderstorms developed across the state of Utah for several days in mid-July, producing both strong wind gusts and heavy rainfall.
Flood · May 23, 2011. Warm temperatures and fast snowmelt caused widespread river flooding across Utah through the end of May. Major rivers impacted included the Sevier River, the South Fork of the Ogden River, and much of the Weber River system. Note that this episode continued into June.
National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.
Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.
If a building in Sevier County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.
Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.