Enter any address in Gem County, Idaho to see its FEMA flood zone
1 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Gem County, Idaho has recorded 12 flood-related events since 1996 according to NOAA's Storm Events Database. The county has received 7 federal disaster declarations, 1 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1964–2022)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Four Corners Fire | Fire | Aug 18, 2022 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms And Flooding | Severe Storm | Jun 2, 2010 |
| Hurricane Katrina | Hurricane | Aug 29, 2005 |
| Severe Storms, Flooding, Mud And Landslides | Severe Storm | Nov 16, 1996 |
| Heavy Rains & Flooding | Flood | Dec 31, 1964 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Mar 17, 2017 | 0.00K |
| Flood | Feb 8, 2017 | 1.00K |
| Flood | May 7, 2017 | 0.00K |
| Flood | Apr 26, 2012 | 0.00K |
| Flood | Jun 4, 2010 | 1.00M |
| Flood | Apr 14, 2002 | — |
| Flood | May 26, 1998 | — |
| Flood | Mar 23, 1998 | — |
| Flood | Jan 1, 1997 | — |
| Flood | Feb 8, 1996 | — |
Flood — Mar 17, 2017
Rainfall and snow melt combined to increase the flow on the Payette River to minor flood stage.
Flood — Feb 8, 2017
Strong Southwesterly flow behind a warm front spread heavy rain across most of the intermountain west. Flooding occurred in most of South Central Idaho.
Flood — May 7, 2017
Spring snow melt flooding occurred across much of Southwest Idaho as a result of an above normal snow pack for the winter of 2016 to 2017.
Flood — Apr 26, 2012
Heavy rainfall caused the Payette River to spill over it's banks in parts of Southwest Idaho on the 26th through the 28th.
Flood — Jun 4, 2010
A deep low pressure system anchored in the Gulf of Alaska and a zonal flow pattern across the Pacific Northwest and Intermountain West provided the right ingredients for a sustained moisture plume which produced convection and periods of moderate to heavy rain over a three day period causing flooding and flash flooding, and severe thunderstorms across Southeast Oregon and Southwest Idaho.
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 Gem County, Idaho:
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 Gem County, Idaho 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.