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South Carolina · FEMA + NOAA + National Risk Index

Edgefield County, SC

22 FEMA disaster declarations (1977-2026), with a FEMA National Risk Index rating of Very Low. Most common hazard: Hurricane.

22
FEMA declarations
8
Major disasters
22
NRI risk · Very Low
Hurricane
Top hazard

The verdict

Edgefield County has a nationally busy FEMA history: 22 declarations, more than 57% of counties in this registry. But the state comparison tempers that reading: the total is 14% below the South Carolina county mean. FEMA's separate National Risk Index places the county safer than 22%; that score models loss and vulnerability rather than counting declarations.

Safer than 22%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
22
FEMA declarations vs 21 national county avg
18
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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FEMA OpenFEMA declaration desk

County FIPS 45037 · Edgefield County 22 declarations · rank 1355/3,266

DECL-HEAVY · MAJOR-LIGHT · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-HIGH · TYPE-LEAD · VS-ST-BELOW

  • DECL-HEAVY 22
  • MAJOR-LIGHT 36%
  • RANK-LOWER #1,355
  • PHOTO-FINISH Hardy
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Hurricane
  • VS-ST-BELOW -14%

Nearest declaration peer: Hardy, WV (0 declaration gap)

FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · South Carolina state profile

Edgefield County in the declaration-count neighbourhood

FEMA declaration records among Edgefield County and nearest peers by total count

declarations

What this shows Edgefield County carries 22 FEMA declaration records, ranked 1355 of 3,266 counties in this registry.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

How Edgefield County's FEMA declaration count compares nationally

Edgefield County vs. all counties in this dataset

FEMA disaster declarations, all-time · Edgefield County

22 Top 43% higher than 57% 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 · 2026-08-25

Edgefield County's FEMA Risk Index score

0/100100/100South Carolina avg71/10022/100
FEMA National Risk Index composite score vs. the South Carolina county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Edgefield County is led by Riverine Flooding (about $3.2M Expected Annual Loss, Historical Loss Ratio Relatively High), while Ice Storm 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 Edgefield County's hazard record show?

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 22.0/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $6.8M in annualized losses), tempered or compounded by a Relatively Moderate social-vulnerability score and Relatively Low community-resilience score. Among the 18 modeled hazards, Ice Storm carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 1.2 times per year here, based on 80 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 18 claims and $365.8K 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 Carolina county averages 25.6 federal declaration records, while Edgefield County has 22. The gap is 14% 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

Edgefield County, SC · 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
16/30

22 OpenFEMA declarations, full ingest window (1.1x national county average)

County Disaster Density Moderate
11/25

22 declarations (0.9x state county average of 26)

Major Disaster Share Moderate
9/25

8 of 22 declarations are major disasters (36%)

Hazard Diversity Very High
20/20

8 different disaster types declared in Edgefield County

FEMA NRI 8-hazard radar - Edgefield County

Edgefield County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 25, Flood 8, Hurricane 25, Tornado 25, Wildfire 8, Drought 25, Heat Wave 25, Winter Storm 48. 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
Edgefield County NRI risk profile FIPS 45037 · 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

22

Above median

Major Disaster share

36%

Mixed major share

NRI risk score

22

Very Low

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

How often does each hazard strike Edgefield 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
Ice Storm Relatively Moderate an average of 1.2 times per year
Hurricane Relatively Low roughly once every 12 years
Earthquake Relatively Low roughly once every 357 years
Drought Relatively Low 47 modeled event-days per year
Wildfire Very Low roughly once every 1,385 years
Lightning Relatively Low an average of 58 times per year
Heat Wave Relatively Low 3.5 modeled event-days per year
Strong Wind Relatively Low an average of 4.8 times per year
Hail Relatively Low an average of 3.5 times per year
Landslide Very Low roughly once every 2 years
Tornado Relatively Low roughly once every 3 years
Riverine Flooding Very Low roughly once every 7 years
Cold Wave Relatively Low roughly once every 5 years
Winter Weather Very Low an average of 1.9 times per year

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

Disaster Types

Hurricane 10
Severe Ice Storm 3
Tropical Storm 2
Biological 2
Severe Storm 2
Winter Storm 1
Flood 1
Drought 1

What Hurricane declarations mean here

Hurricane is the most frequent declaration type on Edgefield County's federal record, 45% of its declarations. Atlantic tropical systems run on a defined season, 1 June to 30 November, with most activity concentrated between August and October; Pacific and territorial basins run on their own calendars. A single named storm routinely produces one declaration number covering a long corridor of counties at once, well inland as well as on the coast, which is why an affected county's count can jump by several in one year without several separate events having occurred.

One practical distinction matters when reading these records: a tropical declaration usually bundles wind, storm surge and inland rainfall flooding under a single incident, but the insurance behind them is split. Wind damage falls to property insurers, while flood and surge damage is covered only under a separate National Flood Insurance Program policy. That is why a county can show heavy declaration activity and a comparatively small NFIP claims record, or the reverse.

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).

Emergency - 14 63.6%

of all 22 declarations

Major Disaster - 8 36.4%

of all 22 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2024 3
2023 2
2022 1
2020 2
2019 1
2018 2
2017 2
2016 1
2014 2
2005 1
2004 1
2000 1
1991 1
1977 1

Disaster Declarations

How the 22 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 22 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
3632 SEVERE WINTER STORM EM Winter Storm 2026-01-23
4829 HURRICANE HELENE DR Hurricane 2024-09-29
3619 HURRICANE HELENE EM Tropical Storm 2024-09-26
3606 HURRICANE DEBBY EM Tropical Storm 2024-08-05
3597 HURRICANE IDALIA EM Hurricane 2023-08-31
4677 HURRICANE IAN DR Hurricane 2022-11-21
3585 HURRICANE IAN EM Hurricane 2022-09-29
4492 COVID-19 PANDEMIC DR Biological 2020-03-27
3470 COVID-19 EM Biological 2020-03-13
3421 HURRICANE DORIAN EM Hurricane 2019-09-01
3400 HURRICANE FLORENCE EM Hurricane 2018-09-10
4346 HURRICANE IRMA DR Hurricane 2017-10-16
3386 HURRICANE IRMA EM Hurricane 2017-09-07
3378 HURRICANE MATTHEW EM Hurricane 2016-10-06
3373 SEVERE STORMS AND FLOODING EM Severe Storm 2015-10-03
4166 SEVERE WINTER STORM DR Severe Ice Storm 2014-03-12
3369 SEVERE WINTER STORM EM Severe Ice Storm 2014-02-12
3233 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-10
1509 SEVERE ICE STORM DR Severe Ice Storm 2004-02-13
1313 SEVERE WINTER STORM DR Severe Storm 2000-01-31
Show 2 earlier declaration records
DR# Title Type Incident Date
881 SEVERE STORMS & FLOODING DR Flood 1990-10-22
3047 DROUGHT EM Drought 1977-08-04

Storm Events in South Carolina

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 5,845 11 40 $11.4M
Hail 1,207 0 0 $25.1M
Flash Flood 954 20 35 $150.4M
Strong Wind 395 4 13 $711.8K
Tornado 320 9 110 $127.1M

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

NFIP Flood Insurance Claims

Total Claims

18

Total Paid

$365.8K

Avg Per Claim

$20.3K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 22.0/100

Expected Annual Loss

Very Low

$6.8M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively Low

Hazard Risk Breakdown

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

Ice storms load power lines and tree limbs with accumulating freezing rain until they fail. The characteristic cost is infrastructure and multi-day power loss across a wide area rather than structural damage to buildings, which is why their consequences often outlast the weather that caused them.

Worth noting for Edgefield County: the model and the federal record do NOT point at the same hazard. Ice Storm carries the highest modeled rating (Relatively Moderate), while the county's declaration history is led by Hurricane. 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

Edgefield County's closest FEMA peer: Franklin County, MA

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Edgefield County: nearest out-of-state National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.

Further reading for this county

Most disaster-prone counties

With 22 FEMA declarations, Edgefield 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 Edgefield County?
The most common disaster type in Edgefield County is Hurricane, with 10 declarations. Other disaster types include Severe Ice Storm (3), Tropical Storm (2), Biological (2).
How does Edgefield County's FEMA declaration record compare with the South Carolina average?
The typical South Carolina county has 25.6 FEMA declaration records; Edgefield County has 22, or 14% fewer. Against the national county mean of 20.7, this county's total is 6% higher. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Edgefield County received?
Edgefield County has received 8 major disaster declarations, representing 36% of all 22 disaster declarations.
How many flood insurance claims has Edgefield County filed?
Edgefield County has 18 National Flood Insurance Program (NFIP) claims totaling $365.8K in payments, with an average of $20.3K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Edgefield County?
No. In Edgefield County, Ice Storm has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $3.2M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Edgefield County?
The most active year for disaster declarations in Edgefield County was 2024, with 3 declarations. The county has FEMA disaster data spanning 1977 to 2026.
What is the FEMA National Risk Index score for Edgefield County?
According to the FEMA National Risk Index, Edgefield County, South Carolina has an overall risk score of 22.0 out of 100 (Very Low). The county's social vulnerability rating is Relatively Moderate and community resilience is Relatively Low. The Expected Annual Loss (EAL) score is Very Low, representing $6.8M in annualized losses.
Which natural hazard poses the greatest risk to Edgefield County?
FEMA's NRI data points to Edgefield County as of the latest release is Ice Storm (risk rating: Relatively Moderate). Other significant hazards include Hurricane (Relatively Low) and Earthquake (Relatively Low). FEMA's modeled event frequency puts ice storm here at an average of 1.2 times per year, drawn from 80 historical events on record. These scores are based on FEMA's analysis of historical event frequency, 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.

FEMA OpenFEMA declarations + NRI for Edgefield County · vintage 2026-08-25 · Methodology · South Carolina profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events