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South Carolina · FEMA + NOAA + National Risk Index

Richland County, SC

26 FEMA disaster declarations (1977-2026), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Hurricane.

26
FEMA declarations
11
Major disasters
93
NRI risk · Relatively Moderate
Hurricane
Top hazard

The verdict

Two federal records point in the busier direction for Richland County. Its 26 FEMA declarations are 2% above the South Carolina county mean and exceed the count for 75% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 7%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 7%
of U.S. counties for FEMA National Risk Index score
Relatively Moderate
FEMA National Risk Index rating
26
FEMA declarations vs 21 national county avg
1,359
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 45079 · Richland County 26 declarations · rank 728/3,266

DECL-HEAVY · MAJOR-LIGHT · RANK-MID · PHOTO-FINISH · NRI-MID · ACT-HIGH · TYPE-LEAD · VS-ST-ABOVE

  • DECL-HEAVY 26
  • MAJOR-LIGHT 42%
  • RANK-MID #728
  • PHOTO-FINISH Hunterdon
  • NRI-MID 93
  • ACT-HIGH High
  • TYPE-LEAD Hurricane
  • VS-ST-ABOVE +2%

Nearest declaration peer: Hunterdon, NJ (0 declaration gap)

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

Richland County among high-volume declaration counties

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

declarations

What this shows Richland County carries 26 FEMA declaration records, ranked 728 of 3,266 counties in this registry.

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

Where Richland County ranks in the national declaration registry

Richland County vs. high-volume counties in this registry

FEMA disaster declarations, all-time · Richland County

26 Top 25% higher than 75% 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

Richland County's FEMA Risk Index score

0/100100/100South Carolina avg71/10093.1/100
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 Richland County is led by Riverine Flooding (about $74.1M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Ice Storm carries the highest National Risk Index rating (Very High). 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 Richland County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 1,359 claims and $60.5M 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 $44.5K. 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. Richland County's 26 federal records stand 2% above the South Carolina county mean of 25.6. 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 93.1/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $137.8M in annualized losses). Social vulnerability reads Relatively Low and community resilience Relatively High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Ice Storm stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at an average of 1.4 times per year here, based on 98 historical events on record.

63 /100

Historical Activity Index

High historical activity

Richland 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
19/30

26 OpenFEMA declarations, full ingest window (1.3x national county average)

County Disaster Density High
13/25

26 declarations (1.0x state county average of 26)

Major Disaster Share Moderate
11/25

11 of 26 declarations are major disasters (42%)

Hazard Diversity Very High
20/20

8 different disaster types declared in Richland County

FEMA NRI 8-hazard radar - Richland County

Richland County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 48, Flood 70, Hurricane 70, Tornado 70, Wildfire 25, Drought 25, Heat Wave 48, Winter Storm 92. The simple mean of these eight displayed scores is 56 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 56 8-hazard mean
Richland County NRI risk profile FIPS 45079 · displayed-hazard mean 56/100
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

26

High volume

Major Disaster share

42%

Mixed major share

NRI risk score

93

Relatively Moderate

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

How often does each hazard strike Richland 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 Very High an average of 1.4 times per year
Lightning Relatively High an average of 60 times per year
Strong Wind Relatively High an average of 5.6 times per year
Tornado Relatively High roughly once every 2 years
Heat Wave Relatively Moderate 4.4 modeled event-days per year
Riverine Flooding Relatively High an average of 3.8 times per year
Hurricane Relatively High roughly once every 5 years
Earthquake Relatively Moderate roughly once every 284 years
Hail Relatively Moderate an average of 3.9 times per year
Winter Weather Relatively High an average of 1.9 times per year
Landslide Relatively Low roughly once every 2 years
Cold Wave Relatively Moderate roughly once every 5 years
Wildfire Relatively Low roughly once every 1,977 years
Drought Relatively Low 15 modeled event-days per year

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

Disaster Types

Hurricane 15
Tropical Storm 2
Biological 2
Severe Storm 2
Severe Ice Storm 2
Winter Storm 1
Flood 1
Drought 1

What Hurricane declarations mean here

Hurricane is the most frequent declaration type on Richland County's federal record, 58% 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 - 15 57.7%

of all 26 declarations

Major Disaster - 11 42.3%

of all 26 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2024 3
2023 2
2022 1
2020 2
2019 1
2018 2
2017 3
2016 2
2014 1
2005 2
2004 1
2000 1
1999 2
1989 1
Show 1 earlier declaration years
1977 1

Disaster Declarations

How the 26 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 26 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
4286 HURRICANE MATTHEW DR Hurricane 2016-10-11
3378 HURRICANE MATTHEW EM Hurricane 2016-10-06
4241 SEVERE STORMS AND FLOODING DR Flood 2015-10-05
3373 SEVERE STORMS AND FLOODING EM Severe Storm 2015-10-03
3369 SEVERE WINTER STORM EM Severe Ice Storm 2014-02-12
3233 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-10
1566 TROPICAL STORM FRANCES DR Hurricane 2004-10-07
Show 6 earlier declaration records
DR# Title Type Incident Date
1509 SEVERE ICE STORM DR Severe Ice Storm 2004-02-13
1313 SEVERE WINTER STORM DR Severe Storm 2000-01-31
1299 HURRICANE FLOYD MAJOR DISASTER DECLARATIONS DR Hurricane 1999-09-21
3145 HURRICANE FLOYD EMERGENCY DECLARATIONS EM Hurricane 1999-09-15
843 HURRICANE HUGO DR Hurricane 1989-09-22
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 Richland 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

1,359

Total Paid

$60.5M

Avg Per Claim

$44.5K

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

FEMA National Risk Index

Overall Risk

Relatively Moderate

Score: 93.1/100

Expected Annual Loss

Relatively Moderate

$137.8M/year

Social Vulnerability

Relatively Low

Community Resilience

Relatively High

Hazard Risk Breakdown

Ice Storm Very High
Lightning Relatively High
Strong Wind Relatively High
Tornado Relatively High
Heat Wave Relatively Moderate
Riverine Flooding Relatively High
Hurricane Relatively High
Earthquake Relatively Moderate
Hail Relatively Moderate
Winter Weather Relatively High
Landslide Relatively Low
Cold Wave Relatively Moderate
Wildfire Relatively Low
Drought Relatively 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 Richland County: the model and the federal record do NOT point at the same hazard. Ice Storm carries the highest modeled rating (Very High), 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

Richland County's closest FEMA peer: Wasco County, OR

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Richland 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

Understanding disaster data

Richland County's NFIP claims file (1,359 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 Richland County?
The most common disaster type in Richland County is Hurricane, with 15 declarations. Other disaster types include Tropical Storm (2), Biological (2), Severe Storm (2).
How does Richland County's FEMA declaration record compare with the South Carolina average?
FEMA lists 26 declaration records for Richland County. That is 2% above the South Carolina county mean of 25.6. Its count is also 25% 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 Richland County received?
Richland County has received 11 major disaster declarations, representing 42% of all 26 disaster declarations.
How many flood insurance claims has Richland County filed?
Richland County has 1,359 National Flood Insurance Program (NFIP) claims totaling $60.5M in payments, with an average of $44.5K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Richland County?
No. In Richland County, Ice Storm has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $74.1M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Richland County?
The most active year for disaster declarations in Richland County was 2017, with 3 declarations. The county has FEMA disaster data spanning 1977 to 2026.
What is the FEMA National Risk Index score for Richland County?
According to the FEMA National Risk Index, Richland County, South Carolina has an overall risk score of 93.1 out of 100 (Relatively Moderate). On social vulnerability the county rates Relatively Low; on community resilience, Relatively High. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $137.8M in annualized losses.
Which natural hazard poses the greatest risk to Richland County?
Based on FEMA NRI data, the highest-risk natural hazard in Richland County is Ice Storm (risk rating: Very High). Other significant hazards include Lightning (Relatively High) and Strong Wind (Relatively High). FEMA's modeled event frequency puts ice storm here at an average of 1.4 times per year, drawn from 98 historical events on record. 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.

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