FloodZoneMap.org

Jefferson County, Nebraska Flood Zones

Check an Address in Jefferson County

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

The Flooding Character of Jefferson County

Flash flooding from severe thunderstorms is the dominant flood character in Jefferson County. Recent events include heavy rainfall in October 2019 across Saline and Jefferson Counties, and 6 to 8 inches of rain causing considerable flooding in June 2018.

National Flood Insurance Program (NFIP) data shows that while most claims have occurred in zones with unknown flood risk, properties in Zone A have experienced flooding with an average water depth of 0.5 feet. Claims in Zone X, typically considered moderate flood risk, have resulted in higher average payouts. Homeowners in areas prone to flash flooding, as well as those in or near identified flood zones, 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 Jefferson County

12 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 Jefferson County

Jefferson County, Nebraska has recorded 42 flood-related events since 1996 according to NOAA's Storm Events Database, including 24 flash floods and 18 river or area floods. The county has received 24 federal disaster declarations, 7 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

Jefferson County Disaster History

FEMA Disaster Declarations (1967–2025)

Disaster Declarations
24
Flood/Coastal Disasters
7
Latest Disaster
Severe Winter Storm And Straight-line Winds (2025-03-18)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Jefferson County

DeclarationTypeDate
Severe Winter Storm And Straight-line WindsWinter StormMar 18, 2025
Severe Storms, Straight-line Winds, And TornadoesSevere StormDec 15, 2021
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
Severe Winter Storm, Straight-line Winds, And FloodingFloodMar 9, 2019
Severe Storms, Tornadoes, And Straight-line WindsSevere StormJun 12, 2017
Severe Storms, Tornadoes, Straight-line Winds, And FloodingSevere StormMay 6, 2015
Severe Storms And FloodingSevere StormJun 1, 2010
Severe Storms, Ice Jams, And FloodingFloodMar 6, 2010
Severe Winter Storms And SnowstormSevere StormDec 22, 2009

Recorded Flood Events in Jefferson County

NOAA Storm Events Database (1996–2025)

Total Flood Events
42
River/Area Floods
18
Flash Floods
24
Total Property Damage
$6.4M
Flood Deaths
1

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in Jefferson County

TypeDateDamage
Flash FloodJul 29, 20200.00K
Flash FloodMar 28, 20190.00K
FloodMar 13, 20190.00K
Flash FloodOct 1, 20190.00K
Flash FloodJun 19, 20180.00K
Flash FloodJun 15, 20175.00K
Flash FloodMay 7, 2015500.00K
FloodMay 7, 20155.00M (1 deaths)
Flash FloodMay 6, 201510.00K
FloodJun 5, 20150.00K

Jefferson County Flood History

Flash Flood — Jul 29, 2020

Slow moving storms led to heavy rain and flash flooding in many places across southeast Nebraska.

Flash Flood — Mar 28, 2019

A couple of severe thunderstorms produced large hail and heavy rain along the Nebraska and Kansas border.

Flood — Mar 13, 2019

A 971mb bomb cyclone moved out of the central Rockies on Wednesday, March 13, 2019 and helped to create widespread, moderate to major, and in many cases historic, flooding across eastern Nebraska and western Iowa. From 4 to 15 inches of snow cover remained across the mid Missouri River valley, and the ground was frozen with existing frost depths of 15 to 23 inches. Warm temperatures allowed all...

Flash Flood — Oct 1, 2019

Severe thunderstorms developed on a southwest to northeast orientated front across southeast Nebraska .The storms produced heavy rains with 3 to 4 inches rainfall reported across Saline and Jefferson Counties which caused flash flooding. A Supercell thunderstorm moving northeast across Pawnee County produced a funnel cloud north of Du Bois.

Flash Flood — Jun 19, 2018

An intense weather system moved very slowly through the mid Missouri Valley, contributing to the development of widespread thunderstorms that produced heavy rainfall during the early-morning hours. The heaviest rainfall occurred over Jefferson County where 6 to 8 amounts resulted in considerable flooding.

Source: NOAA National Weather Service Storm Events Database.

Jefferson County NFIP Flood Insurance Claims

Total Claims Filed
9
Total Paid Out
$14,185
Avg Claim
$2,364
Avg Water Depth
1.0 ft

Claims by Flood Zone

A Zones (High Risk)
2

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

Flood Zone Types in Jefferson County

FEMA assigns flood zone designations to areas in Jefferson 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 Jefferson County

Properties in Jefferson 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.