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DeKalb County, Indiana Flood Zones

Check an Address in DeKalb County

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

Read First-Hand Flood Stories from DeKalb County

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

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Flood Risk Data for DeKalb County

DeKalb County, Indiana has recorded 8 flood-related events since 1996 according to NOAA's Storm Events Database, including 4 flash floods and 4 river or area floods. The county has received 15 federal disaster declarations, 2 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

DeKalb County Disaster History

FEMA Disaster Declarations (1982–2026)

Disaster Declarations
15
Flood/Coastal Disasters
2
Latest Disaster
Severe Winter Storm (2026-01-23)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in DeKalb County

DeclarationTypeDate
Severe Winter StormWinter StormJan 23, 2026
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
Severe Storms, Tornadoes, And FloodingSevere StormMar 8, 2009
Severe Storms And FloodingSevere StormJan 7, 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
SnowSnowstormDec 11, 2000

Recorded Flood Events in DeKalb County

NOAA Storm Events Database (1996–2025)

Total Flood Events
8
River/Area Floods
4
Flash Floods
4
Total Property Damage
$631,000
Flood Deaths
1

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in DeKalb County

TypeDateDamage
FloodJul 19, 20251.00K
FloodJun 27, 20150.00K
Flash FloodMay 21, 201050.00K
FloodJan 8, 2008150.00K
FloodSep 11, 2000250K
Flash FloodAug 16, 199725K
Flash FloodMay 17, 199630K (1 deaths)
Flash FloodJun 17, 1996

DeKalb County Flood History

Flood — Jul 19, 2025

An Mesoscale Convective Vortex moved through the US 30 corridor resulting in flooding rain on its northern edge. The Northern Indiana NWS office recorded 0.72 of rain in just under 15 minutes. Rain totals of 3 to nearly 5 inches was common in La Porte, St. Joseph, Elkhart, De Kalb, and Noble Counties.

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 — May 21, 2010

A upper level impulse, abundant moisture and a south-southwesterly flow combined to allow for the development of thunderstorms. While several produced small hail and locally gusty winds, the main effect was torrential rainfall, on the order of 1 to 3 inches per hour. This resulted in flash flooding in several locations across western Defiance county.

Flood — Jan 8, 2008

An unseasonable moist atmosphere and slow moving cold front set the stage for the training of rain and thunderstorms across much of northern Indiana. In addition, a dense snowpack rapidly melted as a result of the warm temperatures and rainfall, resulting in rapid rises on river and streams as well as widespread problems with flooding of low areas and ditches. Rainfall amounts ranging from a co...

Flash Flood — Aug 16, 1997

Three to four plus inches of rain across county caused widespreadroad flooding with cars abandoned.

Source: NOAA National Weather Service Storm Events Database.

DeKalb County NFIP Flood Insurance Claims

Total Claims Filed
54
Total Paid Out
$1.4M
Avg Claim
$32,557
Avg Water Depth
7.0 ft

Claims by Flood Zone

A Zones (High Risk)
34
X Shaded (500-yr)
2
X Unshaded (Low)
1

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

Flood Zone Types in DeKalb County

FEMA assigns flood zone designations to areas in DeKalb 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 DeKalb County

Properties in DeKalb 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.