FloodZoneMap.org

Grant County, Indiana Flood Zones

Check an Address in Grant County

Enter any address in Grant County, Indiana to see its FEMA flood zone

The Flooding Character of Grant County

River overflow and heavy rainfall events are the primary flood concerns in Grant County. Over the past 30 years, NOAA Storm Events data shows 10 flood events and 6 flash flood events. For example, Grant County experienced significant rainfall in June 2015, with 3 to 6 inches falling in a 24-hour period, and another event in April 2013 where 2 to 4 inches of rain caused creeks to rise rapidly.

National Flood Insurance Program (NFIP) data indicates that properties in Zone A, which have a moderate to high flood risk, have seen the most claims, with an average payout of $13,308 and an average water depth of 4.0 feet. However, properties in Zone X, considered moderate flood risk, have experienced higher average payouts of $17,461, with an average water depth of 4.1 feet. Homeowners in Zone A and Zone X, as well as those in areas with unknown flood zone designations, should pay close attention to flood risk.

Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.

Read First-Hand Flood Stories from Grant County

4 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.

Read Indiana flood stories →

Flood Risk Data for Grant County

Grant County, Indiana has recorded 16 flood-related events since 1996 according to NOAA's Storm Events Database, including 6 flash floods and 10 river or area floods. The county has received 20 federal disaster declarations, 1 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

Grant County Disaster History

FEMA Disaster Declarations (1965–2026)

Disaster Declarations
20
Flood/Coastal Disasters
1
Latest Disaster
Severe Winter Storm (2026-01-23)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Grant County

DeclarationTypeDate
Severe Winter StormWinter StormJan 23, 2026
Severe Storms, Straight-line Winds, And TornadoesSevere StormMar 31, 2023
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
Severe Storms, Flooding, And TornadoesSevere StormMay 30, 2008
SnowSnowstormFeb 12, 2007
Hurricane Katrina EvacuationHurricaneAug 29, 2005
Severe Winter Storms And FloodingSevere StormJan 1, 2005
Severe Storms, Tornadoes, And FloodingSevere StormMay 25, 2004
Severe Storms, Tornadoes, And FloodingSevere StormAug 26, 2003

Recorded Flood Events in Grant County

NOAA Storm Events Database (1996–2025)

Total Flood Events
16
River/Area Floods
10
Flash Floods
6
Total Property Damage
$2.5M
Flood Deaths
3

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in Grant County

TypeDateDamage
FloodJun 27, 20150.00K
Flash FloodAug 22, 20140.00K
FloodApr 18, 20130.00K
FloodJan 13, 20130.00K (1 deaths)
FloodFeb 28, 20110.00K
FloodMar 1, 20111.00M
FloodFeb 6, 200815.00K
FloodJun 12, 2005
Flash FloodJan 12, 2005
Flash FloodJul 5, 2003

Grant County Flood History

Flood — Jun 27, 2015

An unseasonably strong area of low pressure moved through the Ohio Valley on June 26-27 which brought moderate to heavy rain to the area. Between 3 and 6 inches of rain fell in a 24 hour period.

Flash Flood — Aug 22, 2014

A weak upper level system dropped southeast across the region. A stationary boundary extended west to east across the area. Three rounds of thunderstorms developed either across the area or upstream in Illinois and tracked southeast along the front. Precipitable water exceeded 2 inches allowing for a very moist atmosphere and efficient rain producing thunderstorms. The first round produced isol...

Flood — Apr 18, 2013

Numerous thunderstorms developed and persisted across portions of northern Indiana. The main axis of the heaviest precipitation was located either side of a Marion to Columbia City line where rainfall totals of 2 to 4 inches were common. This allowed several smaller rivers and creeks to rapidly respond and forcing high water into adjacent roadways. Drainage systems also had a difficult time kee...

Flood — Jan 13, 2013

A strong system moved through the region January 12th, bringing widespread rainfall to northern Indiana, along with a few thunderstorms. Rainfall amounts varied from three quarters of an inch in northwestern Indiana to one and one half to almost three inches along and east of Interstate 69 and south of U.S. 30. Ground conditions were frozen at the time with a frost depth of several inches. T h...

Flood — Feb 28, 2011

Numerous showers and thunderstorms developed and moved across portions of Northern Indiana. One to three inches of rain fell across the area with localized higher amounts. This resulted in some roads becoming impassable due to flood waters. The event continued into March when a few rivers went over their banks.

Source: NOAA National Weather Service Storm Events Database.

Grant County NFIP Flood Insurance Claims

Total Claims Filed
106
Total Paid Out
$1.4M
Avg Claim
$17,101
Avg Water Depth
7.6 ft

Claims by Flood Zone

A Zones (High Risk)
74
X Shaded (500-yr)
3
X Unshaded (Low)
8

Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).

Flood Zone Types in Grant County

FEMA assigns flood zone designations to areas in Grant 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.

View all flood zone types →

Flood Insurance in Grant County

Properties in Grant 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.