Enter any address in Tooele County, Utah to see its FEMA flood zone
Flash flooding from heavy rainfall is the dominant flood character in Tooele County. Between 1993 and 2023, NOAA Storm Events data recorded 17 flash flood events and 7 general flood events. For example, heavy rain over several days in October 2025 caused flash flooding across much of the Tooele Valley, with rainfall totals ranging from 2 to 4 inches.
FEMA National Flood Insurance Program (NFIP) data shows that properties in Zone A have experienced the highest average claim payouts, with 2 claims averaging $17,294 and an average water depth of 0.5 feet. Zone X properties had 3 claims averaging $4,193 and an average water depth of -2.0 feet. Residents in or near Zone A areas, as well as those in properties without a Base Flood Elevation (BFE), should pay the most attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
1 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Tooele County, Utah has recorded 24 flood-related events since 1996 according to NOAA's Storm Events Database, including 17 flash floods and 7 river or area floods. The county has received 9 federal disaster declarations, 5 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1977–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Anaconda Fire | Fire | Jul 21, 2014 |
| Flooding | Flood | Apr 18, 2011 |
| Hurricane Katrina Evacuation | Coastal Storm | Aug 29, 2005 |
| Flooding And Landslides | Flood | Apr 28, 2005 |
| Severe Storms, Mudslides, Landslides & Flooding | Flood | Aug 17, 1984 |
| Severe Storms, Landslides & Flooding | Flood | Apr 13, 1983 |
| Drought | Drought | Jan 20, 1977 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Oct 4, 2025 | 5.00K |
| Flood | Oct 4, 2025 | 20.00K |
| Flood | Oct 4, 2025 | 500.00K |
| Flood | Oct 4, 2025 | 0.00K |
| Flash Flood | Aug 13, 2024 | 10.00K |
| Flash Flood | Jul 19, 2023 | 20.00K |
| Flash Flood | Aug 3, 2023 | 1.00K |
| Flash Flood | Aug 2, 2023 | 1.00K |
| Flash Flood | Aug 2, 2023 | 50.00K |
| Flash Flood | Sep 21, 2022 | 1.10K |
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.
Flash Flood — Aug 2, 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.
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Tooele County, Utah:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Tooele County, Utah that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.