Enter any address in Washington County, Indiana to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Washington County, Indiana. Between 1993 and 2023, NOAA Storm Events data recorded 35 flash flood events and 28 flood events, which resulted in one fatality. For example, on June 6, 2025, showers and thunderstorms moved across the region, contributing to flash flooding.
NFIP claims data indicates that properties in Zone A have experienced an average water depth of 4.2 feet and received average payouts of $61,970. Properties in Zone Unknown also saw significant water depth, averaging 4.4 feet, with average payouts of $18,661. While Zone X properties had an average water depth of 0.0 feet, they still received substantial average payouts of $58,136.
Homeowners in Zone A and Zone Unknown, as well as those located near waterways or in areas prone to rapid water level rise, should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
17 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Washington County, Indiana has recorded 63 flood-related events since 1996 according to NOAA's Storm Events Database, including 35 flash floods and 28 river or area floods. The county has received 19 federal disaster declarations, 3 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1974–2026)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Winter Storm | Jan 23, 2026 |
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Flood | Mar 30, 2025 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Straight-line Winds, And Tornadoes | Severe Storm | Feb 29, 2012 |
| Severe Storms, Tornadoes, Straight-line Winds, And | Severe Storm | Apr 19, 2011 |
| Severe Winter Storm | Severe Storm | Jan 26, 2009 |
| Severe Storms And Flooding | Severe Storm | Sep 12, 2008 |
| Severe Storms, Flooding, And Tornadoes | Severe Storm | May 30, 2008 |
| Hurricane Katrina Evacuation | Hurricane | Aug 29, 2005 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jul 17, 2025 | 0.00K |
| Flood | Feb 16, 2025 | 0.00K |
| Flash Flood | Jun 6, 2025 | 0.00K |
| Flash Flood | Jun 4, 2020 | 0.00K |
| Flood | Jun 26, 2018 | 0.00K |
| Flood | Feb 25, 2018 | 0.00K |
| Flood | Apr 29, 2017 | 0.00K |
| Flash Flood | May 19, 2017 | 0.00K |
| Flash Flood | May 19, 2017 | 40.00K |
| Flood | Dec 27, 2015 | 0.00K |
Flash Flood — Jul 17, 2025
On July 17th, a west to east oriented cold front dropped southeast from the Midwest and stalled along the Ohio River. Multiple waves of convection along the front continued moving west to east across southern Indiana before the front lifted back north on July 20th. Isolated flooding issues were observed in multiple counties.
Flood — Feb 16, 2025
A major heavy rain and flash flooding event took place across southern Indiana and central Kentucky on February 15th and 16th, 2025. The large scale upper level pattern featured deep troughing ejecting across the central CONUS, with broad southwesterly flow occurring in the low and mid troposphere. Southerly flow helped to draw rich moisture up from the Gulf of America, with unseasonably high p...
Flash Flood — Jun 6, 2025
An area of showers and thunderstorms moved across the lower Ohio Valley during the afternoon and evening hours on June 6th, 2025. A quasi-stationary front was draped across the region, with precipitable water values around 2 inches along and south of the boundary. As a larger convective complex moved across central Kentucky, a mesoscale convective vortex and an associated area of low pressure d...
Flash Flood — Jun 4, 2020
Isolated thunderstorms developed along outflow intersecting boundaries in an area otherwise dominated by upper level high pressure. The slow movement of one storm produced isolated very heavy rain that briefly closed a highway due to overflowing water, and trees were downed by the outflow from another.
Flood — Jun 26, 2018
On the second day of heavy rain across southern Indiana, a quasi-stationary boundary was draped across central Kentucky. As a system moved east through central Missouri. storms moved in from the west. These storms resulted in many reports of wind damage as well as some flooding.
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 Washington County, Indiana:
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 Washington County, Indiana 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.