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South Dakota · FEMA + NOAA + National Risk Index

Lawrence County, SD

17 FEMA disaster declarations (1965-2020), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Flood.

17
FEMA declarations
12
Major disasters
49
NRI risk · Relatively Low
Flood
Top hazard

The verdict

Lawrence County has a nationally busy FEMA history: 17 declarations, more than 32% of counties in this registry. But the state comparison tempers that reading: the total is 11% below the South Dakota county mean. FEMA's separate National Risk Index places the county safer than 49%; that score models loss and vulnerability rather than counting declarations.

Safer than 49%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
17
FEMA declarations vs 21 national county avg
38
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Fire Management Assistance (FM) records, which are not presidential disaster declarations, alongside Major Disaster (DR) and Emergency (EM) records.

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How does Lawrence County compare?

Lawrence County vs. all counties in this dataset

FEMA disaster declarations, all-time

17 32nd percentile higher than 32% 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

Lawrence County's FEMA Risk Index score

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

0/100100/100South Dakota avg27/10049.3/100
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 Lawrence County is led by Riverine Flooding (about $8.5M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Wildfire carries the highest National Risk Index rating (Relatively Moderate). 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 Lawrence County's hazard record show?

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 49.3/100 for this county (Relatively Low rating). Expected Annual Loss comes in at Relatively Low (roughly $16.1M in annualized losses). Social vulnerability (Relatively Low) and community resilience (Relatively Moderate) both factor into how that raw exposure plays out on the ground. Among the 18 modeled hazards, Wildfire carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at roughly once every 216 years here.

Declaration frequency

Nationally, Lawrence County's 17 FEMA records form a high-volume history; within South Dakota, however, the count is 11% below the county mean. 12 entries carry the Major Disaster classification. The largest incident group is Flood, appearing 5 times. The full 55-year record averages 0.3 declarations annually. A DR label alone does not say whether Individual Assistance, Public Assistance, or both followed.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 38 claims and $276.7K 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 Lawrence County has 17. The gap is 11% 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

Lawrence 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
12/30

17 OpenFEMA declarations, full ingest window (0.8x national county average)

County Disaster Density Moderate
11/25

17 declarations (0.9x state county average of 19)

Major Disaster Share High
18/25

12 of 17 declarations are major disasters (71%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Lawrence County

Historical Declaration Activity

Activity Band

High

vs. South Dakota Avg

-11%

State avg: 19.0

vs. National Avg

-18%

National avg: 20.7

Avg Per Year

0.3

Over 55 years

FEMA NRI 8-hazard radar - Lawrence County

Lawrence County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 0, Tornado 25, Wildfire 48, Drought 8, Heat Wave 8, Winter Storm 70. The simple mean of these eight displayed scores is 24 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 24 8-hazard mean
Lawrence County NRI risk profile FIPS 46081 · displayed-hazard mean 24/100
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

17

Below median

Major Disaster share

71%

Major-heavy

NRI risk score

49

Relatively Low

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

How often does each hazard strike Lawrence 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 Moderate roughly once every 216 years
Winter Weather Relatively High an average of 25 times per year
Hail Relatively Moderate an average of 6.2 times per year
Lightning Relatively Moderate an average of 42 times per year
Landslide Relatively Low roughly once every 3 years
Strong Wind Relatively Moderate an average of 2.6 times per year
Cold Wave Relatively Low an average of 4.3 times per year
Riverine Flooding Relatively Low roughly once every 1 years
Earthquake Very Low roughly once every 2,899 years
Tornado Relatively Low roughly once every 6 years
Heat Wave Very Low 0.2 modeled event-days per year
Drought Very Low 31 modeled event-days per year
Avalanche Very Low roughly once every 100 years
Ice Storm Very Low roughly once every 67 years

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

Disaster Types

Severe Storm 5
Flood 5
Fire 3
Biological 2
Snowstorm 1
Coastal Storm 1

What Flood declarations mean here

Flood is the most frequent declaration type on Lawrence County's record, 29% of its declarations. Federal flood declarations cover two mechanisms that behave very differently: riverine flooding, which builds over days as a watershed drains and is usually forecast well in advance, and flash flooding, which can arrive in under an hour from rainfall that fell somewhere upstream.

Flood is also the one hazard class where a second federal dataset exists for the same events. The National Flood Insurance Program records what was actually paid on insured losses, so it measures a narrower thing than the declaration count: uninsured damage, and flooding outside mapped special flood hazard areas, never enters it. Reading the two together is more informative than either alone.

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 70.6%

of all 17 declarations

Fire Management - 3 17.6%

of all 17 declarations

Emergency - 2 11.8%

of all 17 declarations

FEMA Declarations Timeline

Year Declarations
2020 3
2014 1
2013 1
2008 2
2007 1
2005 2
2002 1
1997 2
1995 1
1976 1
1972 1
1965 1

Disaster Declarations

How the 17 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 17 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
4467 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2019-10-07
4155 SEVERE WINTER STORM, SNOWSTORM, AND FLOODING DR Severe Storm 2013-11-08
4125 SEVERE STORMS, TORNADO, AND FLOODING DR Severe Storm 2013-06-28
1774 SEVERE STORMS AND FLOODING DR Severe Storm 2008-07-09
1759 SEVERE WINTER STORM AND RECORD AND NEAR RECORD SNOW DR Snowstorm 2008-05-22
2716 BOX ELDER FIRE FM Fire 2007-07-21
3234 HURRICANE KATRINA EVACUATION EM Coastal Storm 2005-09-10
2557 SD WILDFIRE CAMP FIVE FM Fire 2005-04-19
2434 GRIZZLY GULCH FIRE FM Fire 2002-06-29
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
511 FLASH FLOODING & MUDSLIDES DR Flood 1976-06-25
336 HEAVY RAINS & FLOODING DR Flood 1972-06-10
197 FLOODING DR Flood 1965-05-26

Storm Events in South Dakota

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

38

Total Paid

$276.7K

Avg Per Claim

$7.3K

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 49.3/100

Expected Annual Loss

Relatively Low

$16.1M/year

Social Vulnerability

Relatively Low

Community Resilience

Relatively Moderate

Hazard Risk Breakdown

Wildfire Relatively Moderate
Winter Weather Relatively High
Hail Relatively Moderate
Lightning Relatively Moderate
Landslide Relatively Low
Strong Wind Relatively Moderate
Cold Wave Relatively Low
Riverine Flooding Relatively Low
Earthquake Very Low
Tornado Relatively Low
Heat Wave Very Low
Drought Very Low
Avalanche Very Low
Ice Storm 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 Lawrence County: the model and the federal record do NOT point at the same hazard. Wildfire carries the highest modeled rating (Relatively Moderate), while the county's declaration history is led by Flood. 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

Lawrence County's closest FEMA peer: Lincoln County, WA

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

Further reading for this county

Most disaster-prone counties

With 17 FEMA declarations, Lawrence 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 Lawrence County?
The most common disaster type in Lawrence County is Flood, with 5 declarations. Other disaster types include Severe Storm (5), Fire (3), Biological (2).
How does Lawrence County's FEMA declaration record compare with the South Dakota average?
The typical South Dakota county has 19.0 FEMA declaration records; Lawrence County has 17, or 11% fewer. Against the national county mean of 20.7, this county's total is 18% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Lawrence County received?
Lawrence County has received 12 major disaster declarations, representing 71% of all 17 disaster declarations.
How many flood insurance claims has Lawrence County filed?
Lawrence County has 38 National Flood Insurance Program (NFIP) claims totaling $276.7K in payments, with an average of $7.3K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Lawrence County?
No. In Lawrence County, Wildfire has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $8.5M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Lawrence County?
The most active year for disaster declarations in Lawrence County was 2020, with 3 declarations. The county has FEMA disaster data spanning 1965 to 2020.
What is the FEMA National Risk Index score for Lawrence County?
According to the FEMA National Risk Index, Lawrence County, South Dakota has an overall risk score of 49.3 out of 100 (Relatively Low). The county's social vulnerability rating is Relatively Low and community resilience is Relatively Moderate. The Expected Annual Loss (EAL) score is Relatively Low, representing $16.1M in annualized losses.
Which natural hazard poses the greatest risk to Lawrence County?
The top hazard flagged by FEMA's NRI for Lawrence County as of the latest release is Wildfire (risk rating: Relatively Moderate). Other significant hazards include Winter Weather (Relatively High) and Hail (Relatively Moderate). FEMA's modeled event frequency puts wildfire here at roughly once every 216 years. 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 Lawrence County

Against a South Dakota county mean of 19 declarations, Lawrence County, SD records 17, or 11% fewer. PlainHazard classifies that historical total as high activity.

  • Major Disaster is the largest group (12 of 17) in a declaration history that remains below its state benchmark; frequency here is not a forecast. South Dakota overview
  • Nationally the county exceeds 32% 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.