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South Carolina · FEMA + NOAA + National Risk Index

Horry County, SC

8 FEMA disaster declarations (2022–2026), with a FEMA National Risk Index rating of Relatively High. Most common hazard: Tropical Storm.

8
FEMA declarations
2
Major disasters
98
NRI risk · Relatively High
Tropical Storm
Top hazard

The verdict

Horry County ranks in the riskiest 2% of U.S. counties for FEMA-modeled hazard risk, with more federally declared disasters than 89% of the 2,791 counties FEMA tracks. FEMA rates the county's overall risk as Relatively High, based on 8 federal disaster declarations recorded since 2022, most often tropical storm, 108% above the national county average of 4.

Riskiest 2%
of U.S. counties for FEMA National Risk Index score
Relatively High
FEMA National Risk Index rating
8
FEMA declarations vs 4 national county avg
3
tropical storm declarations, the most common hazard here

FEMA's National Risk Index score reflects expected annual loss, social vulnerability, and community resilience; the declaration count above reflects only Presidentially declared disasters, not every hazard event.

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How does Horry County compare?

Horry County vs. every U.S. county

FEMA disaster declarations, all-time

8 Top 11% higher than 89% of 2,791 counties

This county 0 30 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 · 2026-07-25

Horry County's FEMA Risk Index score

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

0/100100/100South Carolina avg71/10098.2/100
FEMA National Risk Index composite score vs. the South Carolina county average

How disaster-prone is Horry County?

Declaration frequency

Horry County, South Carolina has recorded 8 FEMA disaster declarations between 2022 and 2026, of which 2 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 2.0 declarations per year across a 4-year record, or roughly 7% above the South Carolina county average of 7.5 and 108% above the national county average of 3.8. The dominant disaster type on record is Tropical Storm, with 3 of 8 declarations falling under this category.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 98.2/100 (Relatively High). Expected Annual Loss is rated Relatively High (roughly $290.4M in annualized losses). Social vulnerability reads Relatively High and community resilience Relatively High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Hurricane stands out as the sharpest exposure here, rated Very High.

Flood exposure & the bottom line

Taken together, these indicators put Horry County at a moderate relative risk level, not the calmest county on record, but not among the most disaster-prone either.

Risk Assessment

Risk Level

Moderate

vs. South Carolina Avg

+7%

State avg: 7.5

vs. National Avg

+108%

National avg: 3.8

Avg Per Year

2.0

Over 4 years

FEMA NRI 8-hazard radar - Horry County

Horry County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 48, Flood 70, Hurricane 92, Tornado 70, Wildfire 48, Drought 25, Heat Wave 48, Winter Storm 70. Overall composite 59 of 100, classified High. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 59 composite
Horry County NRI risk profile FIPS 45051 · composite 59/100 (High)
How to read this radar

The radar plots Horry County's relative exposure to the eight headline natural hazards used by the FEMA National Risk Index. Each axis is the qualitative NRI risk rating (Very Low through Very High) re-expressed on a 0-100 scale so that the polygon shape lets you compare a county against another at a glance. A rounder polygon means broad multi-hazard exposure; a spiky polygon means one or two dominant hazards drive most of the modeled risk.

FEMA Records

8

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

45051

SC state code

Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release

Disaster Types

Tropical Storm 3
Hurricane 3
Winter Storm 1
Fire 1

Declaration Types

What DR / EM / FM mean

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

Emergency - 5 62.5%

of all 8 declarations

Major Disaster - 2 25.0%

of all 8 declarations

Fire Management - 1 12.5%

of all 8 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2025 1
2024 3
2023 2
2022 1

Disaster Declarations

DR# Title Type Incident Date
3632 SEVERE WINTER STORM EM Winter Storm 2026-01-23
5554 COVINGTON DRIVE FIRE FM Fire 2025-03-07
4835 TROPICAL STORM DEBBY DR Tropical Storm 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

Storm Events in South Carolina

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 6,973 12 43 $12.4M
Hail 1,449 0 0 $25.1M
Flash Flood 1,125 20 35 $151.3M
Strong Wind 470 4 13 $776.3K
Tornado 359 9 112 $127.4M

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

FEMA National Risk Index

Overall Risk

Relatively High

Score: 98.2/100

Expected Annual Loss

Relatively High

$290.4M/year

Social Vulnerability

Relatively High

Community Resilience

Relatively High

Hazard Risk Breakdown

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

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

Counties with Similar Risk in South Carolina

Frequently Asked Questions

How many natural disasters has Horry County, South Carolina had?
Horry County, South Carolina has received 8 FEMA disaster declarations from 2022 to 2026. Of these, 2 were major disaster declarations.
What is the most common disaster type in Horry County?
The most common disaster type in Horry County is Tropical Storm, with 3 declarations. Other disaster types include Hurricane (3), Winter Storm (1), Fire (1).
How does Horry County's disaster risk compare to the South Carolina average?
Horry County has 8 disaster declarations, which is 7% higher than the South Carolina county average of 7.5 declarations. Compared to the national county average of 3.8, it is 108% higher.
How many major FEMA disaster declarations has Horry County received?
Horry County has received 2 major disaster declarations, representing 25% of all 8 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in South Carolina?
The most common storm types in South Carolina include Thunderstorm Wind (6,973 events), Hail (1,449 events), Flash Flood (1,125 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in Horry County?
The most active year for disaster declarations in Horry County was 2024, with 3 declarations. The county has FEMA disaster data spanning 2022 to 2026.
What is the overall disaster risk level for Horry County?
With 8 FEMA disaster declarations on record, Horry County lands in the moderate-risk band, not unusually disaster-prone, but not spared either.
What is the FEMA National Risk Index score for Horry County?
According to the FEMA National Risk Index, Horry County, South Carolina has an overall risk score of 98.2 out of 100 (Relatively High). The county's social vulnerability rating is Relatively High and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Relatively High, representing $290.4M in annualized losses.
Which natural hazard poses the greatest risk to Horry County?
Based on FEMA NRI data, the highest-risk natural hazard in Horry County is Hurricane (risk rating: Very High). Other significant hazards include Tornado (Relatively High) and Earthquake (Relatively Moderate). 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.

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 Horry County

Horry County, SC runs 7% above the South Carolina county average for federal disaster declarations (8 vs 8), a moderate historical load overall.

Historical declaration counts describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.

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

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