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Nebraska · FEMA + NOAA + National Risk Index

Sarpy County, NE

25 FEMA disaster declarations (1967-2025), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Severe Storm.

25
FEMA declarations
22
Major disasters
84
NRI risk · Relatively Moderate
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Sarpy County. Its 25 FEMA declarations are 49% above the Nebraska county mean and exceed the count for 71% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 16%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 16%
of U.S. counties for FEMA National Risk Index score
Relatively Moderate
FEMA National Risk Index rating
25
FEMA declarations vs 21 national county avg
848
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Major Disaster (DR) and Emergency (EM) records; an EM authorizes a narrower set of federal assistance than a DR.

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How does Sarpy County compare?

Sarpy County vs. all counties in this dataset

FEMA disaster declarations, all-time

25 Top 29% higher than 71% of 3,266 counties

This county 0 90 all U.S. counties FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA Disaster Declarations Summaries v2 · 2026-08-03

Sarpy County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Nebraska county average

0/100100/100Nebraska avg26/10083.6/100
FEMA National Risk Index composite score vs. the Nebraska county average

What does Sarpy County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 848 claims and $21.5M in payments. PlainHazard labels 500 or more claims a heavy registry record; that is a reporting bucket, not an official FEMA risk grade. The average paid claim was $25.3K. NFIP totals exclude uninsured flood losses and do not measure how many properties currently carry a policy.

The declaration register points in the busier direction. Sarpy County's 25 federal records stand 49% above the Nebraska county mean of 16.8. That comparison describes how often federal action was recorded, including any Major Disaster, Emergency, and Fire Management entries shown on this page; it does not convert the count into future probability.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 83.6/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $80.3M in annualized losses). Social vulnerability reads Very Low and community resilience Very High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Tornado stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at roughly once every 5 years here, based on 12 historical events on record.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 25 entries for Sarpy County, including 22 Major Disaster records, 49% above the Nebraska county mean. Across the 58-year span, that works out to 0.4 declarations a year. Severe Storm leads the file with 12 entries. Declaration type records the federal action taken, not every assistance program approved.

74 /100

Historical Activity Index

High historical activity

Sarpy County, NE · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology

FEMA Declarations (1953–present) High
18/30

25 OpenFEMA declarations, full ingest window (1.2x national county average)

County Disaster Density Very High
19/25

25 declarations (1.5x state county average of 17)

Major Disaster Share Very High
22/25

22 of 25 declarations are major disasters (88%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Sarpy County

Historical Declaration Activity

Activity Band

High

vs. Nebraska Avg

+49%

State avg: 16.8

vs. National Avg

+21%

National avg: 20.7

Avg Per Year

0.4

Over 58 years

FEMA NRI 8-hazard radar - Sarpy County

Sarpy County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 48, Hurricane 0, Tornado 70, Wildfire 25, Drought 25, Heat Wave 48, Winter Storm 70. The simple mean of these eight displayed scores is 37 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 37 8-hazard mean
Sarpy County NRI risk profile FIPS 31153 · displayed-hazard mean 37/100
How to read this radar

Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.

FEMA Records

25

High volume

Major Disaster share

88%

Mostly major

NRI risk score

84

Relatively Moderate

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Sarpy County?

FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.

Hazard NRI Risk Rating Recurrence
Tornado Relatively High roughly once every 5 years
Hail Relatively High an average of 7 times per year
Strong Wind Relatively High an average of 4.3 times per year
Heat Wave Relatively Moderate 8.2 modeled event-days per year
Winter Weather Relatively High an average of 13 times per year
Ice Storm Relatively High roughly once every 1 years
Cold Wave Relatively Moderate an average of 4.6 times per year
Wildfire Relatively Low roughly once every 1,005 years
Riverine Flooding Relatively Moderate an average of 1.3 times per year
Lightning Relatively Moderate an average of 47 times per year
Landslide Relatively Low roughly once every 11 years
Drought Relatively Low 12 modeled event-days per year
Earthquake Very Low roughly once every 1,616 years

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Severe Storm 12
Flood 8
Biological 2
Winter Storm 1
Hurricane 1
Tornado 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Sarpy County's record, 48% of its declarations. In FEMA's vocabulary this covers convective weather: thunderstorm straight-line winds, large hail, and the multi-day outbreaks that often carry embedded tornadoes. Activity is heaviest in spring and summer, though the season varies by region.

These events behave differently from a hurricane on paper. Damage tends to be distributed along a storm track rather than concentrated on a coastline, and a declaration typically follows an outbreak that crossed several counties over a few days, not a single point of impact. Because the qualifying threshold is the cost of uninsured public and individual losses rather than storm intensity, two similar storms can produce a declaration in one year and none in another.

Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Major Disaster - 22 88.0%

of all 25 declarations

Emergency - 3 12.0%

of all 25 declarations

FEMA Declarations Timeline

Year Declarations
2025 2
2024 1
2022 1
2021 1
2020 2
2019 1
2017 1
2011 2
2010 2
2008 2
2005 1
2004 1
1998 1
1993 2
1990 1
Show 4 earlier declaration years
1984 1
1978 1
1971 1
1967 1

Disaster Declarations

How the 25 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 25 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4868 SEVERE WINTER STORM AND STRAIGHT-LINE WINDS DR Winter Storm 2025-05-21
4838 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING DR Severe Storm 2024-10-21
4808 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING DR Severe Storm 2024-08-20
4641 SEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADOES DR Severe Storm 2022-02-23
4616 SEVERE STORMS AND STRAIGHT-LINE WINDS DR Severe Storm 2021-09-06
4521 COVID-19 PANDEMIC DR Biological 2020-04-04
3483 COVID-19 EM Biological 2020-03-13
4420 SEVERE WINTER STORM, STRAIGHT-LINE WINDS, AND FLOODING DR Flood 2019-03-21
4325 SEVERE STORMS, TORNADOES, AND STRAIGHT-LINE WINDS DR Severe Storm 2017-08-01
4013 FLOODING DR Flood 2011-08-12
3323 FLOODING EM Flood 2011-06-18
1924 SEVERE STORMS AND FLOODING DR Severe Storm 2010-07-15
1878 SEVERE WINTER STORMS AND SNOWSTORM DR Severe Storm 2010-02-25
1779 SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2008-07-18
1770 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2008-06-20
3245 HURRICANE KATRINA EVACUEES EM Hurricane 2005-09-13
1517 SEVERE STORMS, TORNADOES AND FLOODING DR Severe Storm 2004-05-25
1190 SEVERE SNOW STORMS, RAIN, AND STRONG WINDS DR Severe Storm 1997-11-01
998 SEVERE STORMS AND FLOODING DR Flood 1993-07-19
983 ICE JAMS & FLOODING DR Flood 1993-04-02
Show 5 earlier declaration records
DR# Title Type Incident Date
873 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1990-07-04
716 TORNADOES & FLOODING DR Tornado 1984-07-03
552 STORMS, ICE JAMS, SNOWMELT & FLOODING DR Flood 1978-03-24
303 FLOODS DR Flood 1971-02-23
228 SEVERE STORMS & FLOODING DR Flood 1967-07-18

Storm Events in Nebraska

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Sarpy County.

Storm Type Events Fatalities Injuries Property Damage
Hail 6,079 0 2 $237.7M
Thunderstorm Wind 4,757 3 19 $228.1M
Drought 1,658 0 0 $0
High Wind 1,647 1 1 $22.1M
Winter Storm 1,155 0 2 $335.0K

Source: NOAA Storm Events Database State-level aggregated data, 2015-2025

NFIP Flood Insurance Claims

Total Claims

848

Total Paid

$21.5M

Avg Per Claim

$25.3K

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

FEMA National Risk Index

Overall Risk

Relatively Moderate

Score: 83.6/100

Expected Annual Loss

Relatively Moderate

$80.3M/year

Social Vulnerability

Very Low

Community Resilience

Very High

Hazard Risk Breakdown

Tornado Relatively High
Hail Relatively High
Strong Wind Relatively High
Heat Wave Relatively Moderate
Winter Weather Relatively High
Ice Storm Relatively High
Cold Wave Relatively Moderate
Wildfire Relatively Low
Riverine Flooding Relatively Moderate
Lightning Relatively Moderate
Landslide Relatively Low
Drought Relatively Low
Earthquake Very Low
Hurricane No Rating

Source: FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

The model's sharpest exposure here: Tornado

Tornado exposure is the most spatially concentrated in the model: total destruction along a narrow corridor with intact property either side. County-level averages therefore understate severity badly for anyone actually in the path, and overstate it for everyone else.

For Sarpy County the two measures on this page point the same way: Tornado is the county's highest-rated modeled hazard (Relatively High), and Severe Storm declarations also lead its federal record. Where the model and the declaration history agree, the reading is comparatively straightforward, the hazard is both expected and repeatedly realised.

National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.

Data-matched county comparisons

Sarpy County's closest FEMA peer: Calhoun County, IL

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Sarpy County. Record similarity, not a safety rating.

How these peers are chosen

Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.

Retained FEMA snapshot feed for Sarpy County - capture-dated entries only.

Further reading for this county

Understanding disaster data

Sarpy County's NFIP claims file (848 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Sarpy County?
The most common disaster type in Sarpy County is Severe Storm, with 12 declarations. Other disaster types include Flood (8), Biological (2), Winter Storm (1).
How does Sarpy County's FEMA declaration record compare with the Nebraska average?
FEMA lists 25 declaration records for Sarpy County. That is 49% above the Nebraska county mean of 16.8. Its count is also 21% above the national county mean of 20.7. A larger declaration history records more federal actions; it is not a forecast of the county's next hazard.
How many major FEMA disaster declarations has Sarpy County received?
Sarpy County has received 22 major disaster declarations, representing 88% of all 25 disaster declarations.
How many flood insurance claims has Sarpy County filed?
Sarpy County has 848 National Flood Insurance Program (NFIP) claims totaling $21.5M in payments, with an average of $25.3K per claim.
What was the worst year for disasters in Sarpy County?
The most active year for disaster declarations in Sarpy County was 1993, with 2 declarations. The county has FEMA disaster data spanning 1967 to 2025.
What is the FEMA National Risk Index score for Sarpy County?
According to the FEMA National Risk Index, Sarpy County, Nebraska has an overall risk score of 83.6 out of 100 (Relatively Moderate). Social vulnerability here rates Very Low, while community resilience comes in at Very High. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $80.3M in annualized losses.
Which natural hazard poses the greatest risk to Sarpy County?
Based on FEMA NRI data, the highest-risk natural hazard in Sarpy County is Tornado (risk rating: Relatively High). Other significant hazards include Hail (Relatively High) and Strong Wind (Relatively High). FEMA's modeled event frequency puts tornado here at roughly once every 5 years, drawn from 12 historical events on record. FEMA derives these ratings from historical event frequency, the assets exposed, and the community's vulnerability profile.
Data Sources & Methodology

Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.

Storm event data is sourced from the NOAA Storm Events Database (2015-2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.

Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.

This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.

What this means for Sarpy County

Sarpy County, NE has 25 federal declaration records, 49% more than the Nebraska county mean of 17; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 22 of 25 records; the category describes past federal action, not the next likely hazard. Nebraska overview
  • The state benchmark and national rank point the same way: this count tops the Nebraska mean and the totals for 71% of 3,266 U.S. counties. Most-disaster rankings
  • The large NFIP claims file and FEMA declaration history measure different federal records; the guide explains where they overlap and where they do not. Disaster-data guide

An above-average declaration count records past federal responses; it does not predict the next event. Current warnings come from the National Weather Service and local emergency officials.

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.