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The data below is historical (NOAA Storm Events / FEMA), not a live alert. For current warnings and evacuation orders, check the National Weather Service, Ready.gov, or FEMA.gov.

South Dakota · FEMA + NOAA + National Risk Index

Campbell County, SD

15 FEMA disaster declarations (1976-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

15
FEMA declarations
12
Major disasters
4
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Campbell County has a nationally busy FEMA history: 15 declarations, more than 23% of counties in this registry. But the state comparison tempers that reading: the total is 21% below the South Dakota county mean. FEMA's separate National Risk Index places the county safer than 4%; that score models loss and vulnerability rather than counting declarations.

Safer than 4%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
15
FEMA declarations vs 21 national county avg
1
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 Campbell County compare?

Campbell County vs. all counties in this dataset

FEMA disaster declarations, all-time

15 23rd percentile higher than 23% 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

Campbell County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the South Dakota county average

0/100100/100South Dakota avg27/1004.4/100
FEMA National Risk Index composite score vs. the South Dakota county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Campbell County is led by Riverine Flooding (about $1.7M Expected Annual Loss, Historical Loss Ratio Very High), while Wildfire carries the highest National Risk Index rating (Relatively Low). EAL and risk score use different inputs; they need not agree.

Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.

What does Campbell County's hazard record show?

Declaration frequency

Nationally, Campbell County's 15 FEMA records form a high-volume history; within South Dakota, however, the count is 21% below the county mean. 12 entries carry the Major Disaster classification. The largest incident group is Severe Storm, appearing 6 times. The full 44-year record averages 0.3 declarations annually. A DR label alone does not say whether Individual Assistance, Public Assistance, or both followed.

FEMA National Risk Index

This county sits at the very bottom of FEMA's National Risk Index nationally, a composite score of 4.4/100 (rated Very Low). Projected losses are minimal, Expected Annual Loss reads Very Low (roughly $4.3M in annualized losses), and the county's exposure is shaped by a Very Low social-vulnerability profile and Relatively High community resilience. Even the county's top-rated hazard, Wildfire, only reaches Relatively Low on FEMA's scale, none of the 18 modeled hazards stand out here. FEMA's modeled frequency puts that hazard at roughly once every 660 years here.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 1 claim and $165.9K paid in total. PlainHazard calls 1-49 claims a light registry record, a label for this dataset rather than a finding that flood exposure is low. A short claims history can also reflect insurance take-up, the period covered, or losses that were never insured.

Start with the state benchmark: a South Dakota county averages 19.0 federal declaration records, while Campbell County has 15. The gap is 21% below that mean. Fewer entries indicate a quieter history of recorded federal actions, not immunity from a hazard and not a prediction about what happens next.

56 /100

Historical Activity Index

High historical activity

Campbell County, SD · 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) Moderate
11/30

15 OpenFEMA declarations, full ingest window (0.7x national county average)

County Disaster Density Moderate
10/25

15 declarations (0.8x state county average of 19)

Major Disaster Share Very High
20/25

12 of 15 declarations are major disasters (80%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Campbell County

Historical Declaration Activity

Activity Band

High

vs. South Dakota Avg

-21%

State avg: 19.0

vs. National Avg

-28%

National avg: 20.7

Avg Per Year

0.3

Over 44 years

FEMA NRI 8-hazard radar - Campbell County

Campbell County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 0, Tornado 8, Wildfire 25, Drought 8, Heat Wave 8, Winter Storm 25. The simple mean of these eight displayed scores is 11 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 11 8-hazard mean
Campbell County NRI risk profile FIPS 46021 · displayed-hazard mean 11/100
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

15

Below median

Major Disaster share

80%

Mostly major

NRI risk score

4

Very Low

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

How often does each hazard strike Campbell 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
Wildfire Relatively Low roughly once every 660 years
Hail Relatively Low an average of 3.1 times per year
Winter Weather Relatively Low an average of 18 times per year
Cold Wave Relatively Low an average of 11 times per year
Drought Very Low 17 modeled event-days per year
Ice Storm Very Low roughly once every 2 years
Tornado Very Low roughly once every 4 years
Strong Wind Very Low an average of 2 times per year
Riverine Flooding Very Low roughly once every 2 years
Heat Wave Very Low 2.5 modeled event-days per year
Earthquake Very Low roughly once every 4,975 years
Landslide Very Low roughly once every 9 years
Lightning Very Low an average of 32 times per year

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

Disaster Types

Severe Storm 6
Flood 4
Biological 2
Coastal Storm 1
Snowstorm 1
Drought 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Campbell County's record, 40% 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 - 12 80.0%

of all 15 declarations

Emergency - 3 20.0%

of all 15 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2019 2
2010 2
2009 1
2005 1
1997 2
1995 2
1994 1
1993 1
1976 1

Disaster Declarations

How the 15 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 15 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4527 COVID-19 PANDEMIC DR Biological 2020-04-05
3475 COVID-19 EM Biological 2020-03-13
4463 SEVERE STORMS AND FLOODING DR Flood 2019-09-23
4440 SEVERE WINTER STORM, SNOWSTORM, AND FLOODING DR Flood 2019-06-07
1887 SEVERE WINTER STORM DR Severe Storm 2010-03-10
1886 SEVERE WINTER STORM AND SNOWSTORM DR Severe Storm 2010-03-09
1844 SEVERE STORMS AND FLOODING DR Severe Storm 2009-06-16
3234 HURRICANE KATRINA EVACUATION EM Coastal Storm 2005-09-10
1173 SEVERE FLOODING, SEVER WINTER STORMS,HEAVY RAINS HIGH WINDS DR Flood 1997-04-07
1156 SEVERE WINTER STORMS AND BLIZZARD CONDITIONS DR Severe Storm 1997-01-10
1052 FLOODING DR Flood 1995-05-26
1045 SEVERE WINTER STORMS DR Snowstorm 1995-03-14
1031 SEVERE STORMS AND FLOODING DR Severe Storm 1994-06-21
999 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1993-07-19
3015 DROUGHT EM Drought 1976-06-17

Storm Events in South Dakota

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 5,388 7 21 $10.7M
Hail 4,801 0 3 $4.5M
High Wind 2,277 0 1 $35.0K
Winter Weather 2,125 20 50 $133.0K
Flood 1,523 5 0 $196.2M

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

NFIP Flood Insurance Claims

Total Claims

1

Total Paid

$165.9K

Avg Per Claim

$165.9K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 4.4/100

Expected Annual Loss

Very Low

$4.3M/year

Social Vulnerability

Very Low

Community Resilience

Relatively High

Hazard Risk Breakdown

Wildfire Relatively Low
Hail Relatively Low
Winter Weather Relatively Low
Cold Wave Relatively Low
Drought Very Low
Ice Storm Very Low
Tornado Very Low
Strong Wind Very Low
Riverine Flooding Very Low
Heat Wave Very Low
Earthquake Very Low
Landslide Very Low
Lightning Very Low

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: Wildfire

Wildfire risk in the model reflects fuel, terrain, weather and how much development sits in the wildland-urban interface. It is one of the few hazards where the exposure is materially changed by land management and building choices, not only by where the county happens to be.

Worth noting for Campbell County: the model and the federal record do NOT point at the same hazard. Wildfire carries the highest modeled rating (Relatively Low), while the county's declaration history is led by Severe Storm. That is not a contradiction, the two measure genuinely different things. Declarations record federal ACTION, which requires damage costly enough to exceed state and local capacity; the Risk Index models EXPECTED annual loss across all 18 hazards whether or not any declaration ever followed. A hazard can be the county's largest modeled exposure and never once have driven a declaration.

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

Campbell County's closest FEMA peer: Osceola County, IA

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Campbell 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 Campbell County - capture-dated entries only.

Further reading for this county

Most disaster-prone counties

With 15 FEMA declarations, Campbell County sits in the high-volume declaration band - see how that count ranks against other U.S. counties.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Campbell County?
The most common disaster type in Campbell County is Severe Storm, with 6 declarations. Other disaster types include Flood (4), Biological (2), Coastal Storm (1).
How does Campbell County's FEMA declaration record compare with the South Dakota average?
The typical South Dakota county has 19.0 FEMA declaration records; Campbell County has 15, or 21% fewer. Against the national county mean of 20.7, this county's total is 28% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Campbell County received?
Campbell County has received 12 major disaster declarations, representing 80% of all 15 disaster declarations.
How many flood insurance claims has Campbell County filed?
Campbell County has 1 National Flood Insurance Program (NFIP) claims totaling $165.9K in payments, with an average of $165.9K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Campbell County?
No. In Campbell County, Wildfire has the highest National Risk Index rating (Relatively Low), while Riverine Flooding leads Expected Annual Loss at about $1.7M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Campbell County?
The most active year for disaster declarations in Campbell County was 1995, with 2 declarations. The county has FEMA disaster data spanning 1976 to 2020.
What is the FEMA National Risk Index score for Campbell County?
According to the FEMA National Risk Index, Campbell County, South Dakota has an overall risk score of 4.4 out of 100 (Very Low). On social vulnerability the county rates Very Low; on community resilience, Relatively High. The Expected Annual Loss (EAL) score is Very Low, representing $4.3M in annualized losses.
Which natural hazard poses the greatest risk to Campbell County?
FEMA's NRI data points to Campbell County is Wildfire (risk rating: Relatively Low). Other significant hazards include Hail (Relatively Low) and Winter Weather (Relatively Low). FEMA's modeled event frequency puts wildfire here at roughly once every 660 years. The underlying methodology weighs historical event frequency against exposed assets and community vulnerability.
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 Campbell County

Against a South Dakota county mean of 19 declarations, Campbell County, SD records 15, or 21% fewer. PlainHazard classifies that historical total as high activity.

  • Major Disaster is the largest group (12 of 15) in a declaration history that remains below its state benchmark; frequency here is not a forecast. South Dakota overview
  • Nationally the county exceeds 23% of recorded county totals, but its own South Dakota benchmark is higher. The ranking keeps those two contexts separate. Most-disaster rankings
  • A short NFIP claims file cannot establish low flood exposure; the data guide explains the limits of each federal measure. Disaster-data guide

A below-average federal record is not a safety guarantee. Use National Weather Service alerts and local emergency-management notices for present conditions, not this historical comparison.

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.