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Rock County, Nebraska Flood Zones

Check an Address in Rock County

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

Read First-Hand Flood Stories from Rock County

5 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 Rock County

Rock County, Nebraska has recorded 7 flood-related events since 1996 according to NOAA's Storm Events Database, including 3 flash floods and 4 river or area floods. The county has received 14 federal disaster declarations, 1 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

Rock County Disaster History

FEMA Disaster Declarations (2001–2020)

Disaster Declarations
14
Flood/Coastal Disasters
1
Latest Disaster
Covid-19 Pandemic (2020-01-20)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Rock County

DeclarationTypeDate
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
Severe Winter Storm, Straight-line Winds, And FloodingFloodMar 9, 2019
Severe Winter Storm And Straight-line WindsSnowstormApr 13, 2018
Severe Winter Storm And Straight-line WindsSevere StormApr 29, 2017
Severe Storms, Tornadoes, Straight-line Winds, And FloodingSevere StormJun 1, 2014
Severe Storms And FloodingSevere StormJun 1, 2010
Severe Winter Storms And SnowstormSevere StormDec 22, 2009
Severe Storms, Flooding, And TornadoesSevere StormJun 5, 2009
Severe Storms, Tornadoes, And FloodingSevere StormMay 22, 2008

Recorded Flood Events in Rock County

NOAA Storm Events Database (1996–2025)

Total Flood Events
7
River/Area Floods
4
Flash Floods
3
Total Property Damage
$865,000

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in Rock County

TypeDateDamage
FloodMar 14, 20190.00K
FloodMar 13, 2019250.00K
FloodMar 13, 201925.00K
Flash FloodSep 12, 20190.00K
FloodJun 12, 2010120.00K
Flash FloodJul 16, 2001250K
Flash FloodJul 19, 1999100K

Rock County Flood History

Flood — Mar 14, 2019

Historical flooding occurred in north central Nebraska as rivers, creeks and other streams rose due to the combination of snow, rain, and rapid snow melt on top of frozen ground. The greatest flooding occurred along the Niobrara, Keya Paha, Elkhorn and Loup Rivers; Ponca, Long Pine, Victoria and Cedar creeks; and one fatality occurred from the failure of Spencer Dam that is located on the Niobr...

Flood — Mar 13, 2019

Historical flooding occurred in north central Nebraska as rivers, creeks and other streams rose due to the combination of snow, rain, and rapid snow melt on top of frozen ground. The greatest flooding occurred along the Niobrara, Keya Paha, Elkhorn and Loup Rivers; Ponca, Long Pine, Victoria and Cedar creeks; and one fatality occurred from the failure of Spencer Dam that is located on the Niobr...

Flash Flood — Sep 12, 2019

A strong upper level trough of low pressure forced a cold front through western and north central Nebraska during the late afternoon and evening hours of September 11th. Thunderstorms developed in the eastern Nebraska Panhandle and moved east and southeast during the evening hours. Hail up to two and a half inches in diameter and thunderstorm wind gusts to 80 MPH were reported.

Flood — Jun 12, 2010

A semi stationary front across the plains over a three day period remained the focus for thunderstorm development on June 11th. The thunderstorms developed initially on the high plains and spread east and intensified producing several large hail events and an isolated tornado in western Nebraska. Overnight as the low level jet strengthened storms continued producing heavy rainfall over already ...

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 Rock County

FEMA assigns flood zone designations to areas in Rock 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 Rock County

Properties in Rock 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.