FloodZoneMap.org

Grant County, Nebraska Flood Zones

Check an Address in Grant County

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

Read First-Hand Flood Stories from Grant County

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

Read Nebraska flood stories →

Flood Risk Data for Grant County

Grant County, Nebraska has recorded 2 flood-related events since 1996 according to NOAA's Storm Events Database, including 2 flash floods. The county has received 5 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 (2005–2021)

Disaster Declarations
5
Flood/Coastal Disasters
1
Latest Disaster
Severe Storms And Straight-line Winds (2021-07-09)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Grant County

DeclarationTypeDate
Severe Storms And Straight-line WindsSevere StormJul 9, 2021
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
Severe Winter Storm, Straight-line Winds, And FloodingFloodMar 9, 2019
Hurricane Katrina EvacueesHurricaneAug 29, 2005

Recorded Flood Events in Grant County

NOAA Storm Events Database (1996–2025)

Total Flood Events
2
Flash Floods
2
Total Property Damage
$40,000

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in Grant County

TypeDateDamage
Flash FloodAug 4, 201110.00K
Flash FloodAug 26, 200225K

Grant County Flood History

Flash Flood — Aug 4, 2011

A line of thunderstorms developed from the southern Nebraska panhandle into central Nebraska on the afternoon of August 4th and remained fairly stationary before evolving into a north to south oriented line of storms and progressing into eastern Nebraska. Heavy rains were produced from these thunderstorms, with amounts exceeding 3.00 inches in portions of Arthur and McPherson counties. These h...

Source: NOAA National Weather Service Storm Events Database.

Nebraska Statewide Flood Insurance Data

Total NFIP Claims
6,067
Total Claims Paid
$97.3M

Flood Zone Types in Grant County

FEMA assigns flood zone designations to areas in Grant County, Nebraska:

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, Nebraska 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.