Enter any address in Greene County, Ohio to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Greene County, OH. Between 1993 and 2023, NOAA Storm Events data recorded 60 flood events and 26 flash flood events. Recent examples include widespread showers and thunderstorms on April 4, 2025, and flash flooding from showers and thunderstorms on June 28, 2025.
National Flood Insurance Program (NFIP) claims data from Greene County shows that properties in Zone A experienced the most claims, with an average payout of $13,701 and an average water depth of 3.2 feet. Zone X also saw claims, with an average payout of $1,878 and an average water depth of 8.3 feet. Homeowners in Zone A, and those in any flood zone, should pay close 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.
Greene County, Ohio has recorded 86 flood-related events since 1996 according to NOAA's Storm Events Database, including 26 flash floods and 60 river or area floods. The county has received 16 federal disaster declarations, 2 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1968–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Straight-line Winds, Tornadoes, Flooding, Landslides, And Mudslide | Tornado | May 27, 2019 |
| Severe Storms | Severe Storm | Jun 29, 2012 |
| Severe Wind Storm Associated With Tropical Depression Ike | Severe Storm | Sep 14, 2008 |
| Record Snow And Near Record Snow | Snowstorm | Mar 7, 2008 |
| Hurricane Katrina Evacuation | Hurricane | Aug 29, 2005 |
| Snow | Snowstorm | Dec 22, 2004 |
| Severe Storms And Flooding | Severe Storm | Aug 27, 2004 |
| Severe Winter Storm And Record/near Record Snow | Severe Storm | Feb 14, 2003 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jun 28, 2025 | 0.00K |
| Flood | Jun 16, 2025 | 0.00K |
| Flood | Jun 14, 2025 | 0.00K |
| Flood | Aug 13, 2025 | 0.00K |
| Flood | Apr 4, 2025 | 0.00K |
| Flood | Mar 25, 2023 | 0.00K |
| Flood | Feb 18, 2022 | 5.00K |
| Flood | Feb 17, 2022 | 0.00K |
| Flood | Mar 7, 2022 | 0.00K |
| Flash Flood | Jun 18, 2021 | 20.00K |
Flash Flood — Jun 28, 2025
Showers and thunderstorms developed along a frontal boundary that was moving south into the Ohio Valley.
Flood — Jun 16, 2025
Slow moving thunderstorms produced locally heavy rain during the evening hours.
Flood — Jun 14, 2025
Scattered thunderstorms produced locally heavy rainfall during the evening hours.
Flood — Aug 13, 2025
Scattered thunderstorms produced locally heavy rainfall during the evening hours.
Flood — Apr 4, 2025
Widespread showers and thunderstorms occurred across the region as waves of low pressure moved east along a frontal boundary that was stalled out along the Ohio River.
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 Greene County, Ohio:
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 Greene County, Ohio 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.