Enter any address in Marion County, Indiana to see its FEMA flood zone
Flash flooding from intense thunderstorms is the primary flood hazard in Marion County, IN. Over the last 30 years, NOAA Storm Events data recorded 67 flood events and 57 flash flood events. Recent examples include flash flooding on April 2nd and April 4th, 2025, which resulted from severe thunderstorms and heavy rainfall, exacerbating creek and river flooding. Another event on April 11th, 2024, caused flooding across the Indianapolis Metro area due to heavy rain from a slow-moving low-pressure system.
National Flood Insurance Program (NFIP) claims data shows that properties in Zone A, typically areas of higher flood risk, have experienced a significant number of claims. However, properties in Zone X, which are generally considered to have a moderate to minimal flood risk, have also seen substantial claims with higher average payouts and water depths than some higher-risk zones. Homeowners in Zone A, as well as those in Zone X and areas with unknown flood risk designations, should pay close attention to flood risk information.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
44 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Marion County, Indiana has recorded 124 flood-related events since 1996 according to NOAA's Storm Events Database, including 57 flash floods and 67 river or area floods. The county has received 18 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 (1990–2026)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Winter Storm | Jan 23, 2026 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Winter Storm And Snowstorm | Severe Storm | Jan 5, 2014 |
| Severe Storms, Flooding, And Tornadoes | Severe Storm | May 30, 2008 |
| Snow | Snowstorm | Feb 12, 2007 |
| Hurricane Katrina Evacuation | Hurricane | Aug 29, 2005 |
| Severe Winter Storms And Flooding | Severe Storm | Jan 1, 2005 |
| Snow | Snowstorm | Dec 21, 2004 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | May 25, 2004 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Apr 4, 2025 | 100.00K |
| Flash Flood | Apr 2, 2025 | 100.00K |
| Flood | Apr 11, 2024 | 100.00K |
| Flash Flood | Aug 1, 2024 | 25.00K |
| Flash Flood | Aug 30, 2022 | 5.00K |
| Flash Flood | Aug 25, 2021 | 50.00K |
| Flash Flood | Jun 12, 2021 | 2.00K |
| Flash Flood | Jul 1, 2021 | 10.00K |
| Flood | Oct 23, 2020 | 3.00K |
| Flood | Aug 10, 2020 | 2.00K |
Flash Flood — Apr 4, 2025
The final round of rain in a stretch of 4 days brought rain amounts of 2-4.5 inches of rain to central Indiana in addition to the 3-5 inches that had fallen. This led to additional widespread flash flooding and exacerbated ongoing creek and river flooding to a point that many main stem rivers ended up reaching major flood stage.
Flash Flood — Apr 2, 2025
A strong low pressure system generated a line of strong to severe thunderstorms that started in Illinois and moved across central Indiana. Multiple severe storms were embedded within the line and some of these produced tornadoes. Eleven tornadoes impacted central Indiana, ten of which occurred along an overall west-southwest to east-northeast area from north of Terre Haute to north of Muncie. ...
Flood — Apr 11, 2024
A deep, amplified upper trough encompassing most of North America phased with a broad area of surface low pressure slowly approaching central Indiana from the Mississippi Delta region. Resultant strong advection of moisture from the Gulf of Mexico produced heavy rain from the 10th afternoon to the morning of the 11th, with a southwest to northeast band of 2.00 to 3.00 inches of rainfall acros...
Flash Flood — Aug 1, 2024
A remnant southwest to northeast boundary from early morning convection combined with an approaching upper trough and associated cold front, as well as anomalous precipitable water values up to 2.00 inches and CAPE around 2000 J/kg. Resultant thunderstorms came in two phases, first a marginally severe bow echo that crossed far southwestern central Indiana, and then torrential, training downpou...
Flash Flood — Aug 30, 2022
An upper trough and associated cold front slowly approached central Indiana, focusing the transport of deep moisture into the region. Several rounds of strong thunderstorms impacted much of the area from late afternoon on the 29th into the early morning of the 30th. Mean tropospheric wind as low as 15 knots promoted slow storm motion, which led to locally heavy 1-day rainfall totals and isola...
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 Marion 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 Marion 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.