7 flood insurance claims·$62,474 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 Tooele 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.
Flash flooding from heavy rainfall dominates the historical flood events in Tooele County, accounting for 17 out of 24 total recorded events over the last 30 years, alongside 7 general flood events. A notable recent occurrence took place in October 2025, when heavy rain over a several-day period caused flash flooding across much of the Tooele Valley, with event rainfall totals ranging from 2 to 4 inches.
National Flood Insurance Program claims data indicates payouts across different zones. Properties in Zone X recorded 3 claims with an average payout of $4,193 and an average recorded water depth of 1 inch. Zone A properties logged 2 claims with an average payout of $34,589 and an average recorded water depth of 1 inch. Properties in Zone UNKNOWN recorded 2 claims with an average payout of $7,653 and an average recorded water depth of 4 inches.
Homeowners, real estate agents, and journalists should pay the closest attention to properties located within mapped special flood hazard areas such as Zone A, as well as areas with unknown flood risk designations where claims indicate higher average water depths and substantial financial impacts from localized heavy rainfall and flash flooding.
Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.
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 2005, with 2 claims and $3,851 paid, the year of Flooding and Landslides and Hurricane Katrina Evacuation.
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 Tooele 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 |
|---|---|
| Anaconda Fire | Jul 21, 2014 |
| 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.
24 since 1996: 17 flash floods and 7 river or area floods.
| Event | Date | Damage |
|---|---|---|
| Flood | Oct 4, 2025 | $5,000 |
| Flood | Oct 4, 2025 | $20,000 |
| Flood | Oct 4, 2025 | $500,000 |
| Flood | Oct 4, 2025 | — |
| Flash Flood | Aug 13, 2024 | $10,000 |
| Flash Flood | Jul 19, 2023 | $20,000 |
| Flash Flood | Aug 3, 2023 | $1,000 |
| Flash Flood | Aug 2, 2023 | $1,000 |
— = no damage estimate in the record. Source: NOAA Storm Events Database.
Flood · Oct 4, 2025. Heavy rain over a several day period caused flash flooding for much of the Tooele Valley. Rainfall totals through the event ranged from 2-4 inches.
Flash Flood · Aug 13, 2024. Monsoonal showers and thunderstorms brought flash flooding and gusty winds to Utah.
Flash Flood · Jul 19, 2023. A shift in the atmospheric pattern from mid to late July brought an array of impacts to much of Utah, including severe thunderstorm wind gusts, large hail, and flash flooding.
Flash Flood · Aug 3, 2023. A deep monsoonal event impacted Utah at the beginning of August. Each of these days across northern Utah, widespread thunderstorms and flooding impacted the region. Very heavy rainfall impacted West Valley City, Honeyville, and Draper in particular.
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 Tooele 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.