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South Carolina · FEMA + NOAA + National Risk Index

Chesterfield County, SC

6 FEMA disaster declarations (2022–2026), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Hurricane.

6
FEMA declarations
1
Major disasters
74
NRI risk · Relatively Low
Hurricane
Top hazard

FEMA's National Risk Index places Chesterfield County in the top 26% of U.S. counties for overall natural-hazard risk, and its FEMA disaster-declaration count is higher than 81% of all 2,729 counties tracked.

How does Chesterfield County compare?

Chesterfield County
6
South Carolina county avg
7.4
National county avg
3.7

How disaster-prone is Chesterfield County?

Chesterfield County, South Carolina has recorded 6 FEMA disaster declarations between 2022 and 2026, of which 1 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 1.5 declarations per year across a 4-year record, or roughly 19% below the South Carolina county average of 7.4 and 60% above the national county average of 3.7.

The dominant disaster type on record is Hurricane, with 3 of 6 declarations falling under this category. This county carries a high composite score on FEMA's National Risk Index, 74.0/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $22.5M in annualized losses), and a Very High social-vulnerability profile combined with Very Low community resilience shapes how much of that raw exposure becomes realized harm. Among the 18 modeled hazards, Hurricane carries the county's highest rating, a mid-range Relatively Moderate.

Taken together, these indicators put Chesterfield 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

-19%

State avg: 7.4

vs. National Avg

+60%

National avg: 3.7

Avg Per Year

1.5

Over 4 years

FEMA NRI 8-hazard radar - Chesterfield County

Chesterfield County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 25, Flood 0, Hurricane 48, Tornado 48, Wildfire 25, Drought 25, Heat Wave 25, Winter Storm 70. Overall composite 33 of 100, classified Moderate. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 33 composite
Chesterfield County NRI risk profile FIPS 45025 · composite 33/100 (Moderate)
How to read this radar

The radar plots Chesterfield 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

6

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

45025

SC state code

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

Disaster Types

Hurricane 3
Tropical Storm 2
Winter Storm 1

Declaration Types

What DR / EM / FM mean

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

Emergency - 5 83.3%

of all 6 declarations

Major Disaster - 1 16.7%

of all 6 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2024 2
2023 2
2022 1

Disaster Declarations

DR# Title Type Incident Date
3632 SEVERE WINTER STORM EM Winter Storm 2026-01-23
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 6,347 11 43 $11.9M
Hail 1,288 0 0 $25.1M
Flash Flood 1,077 20 35 $150.5M
Strong Wind 404 4 13 $721.8K
Tornado 329 9 110 $127.1M

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 74.0/100

Expected Annual Loss

Relatively Low

$22.5M/year

Social Vulnerability

Very High

Community Resilience

Very Low

Hazard Risk Breakdown

Hurricane Relatively Moderate
Strong Wind Relatively High
Tornado Relatively Moderate
Ice Storm Relatively High
Lightning Relatively High
Earthquake Relatively Low
Wildfire Relatively Low
Hail Relatively Low
Heat Wave Relatively Low
Cold Wave Relatively Low
Landslide Very Low
Drought Relatively Low
Winter Weather Relatively 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 Chesterfield County, South Carolina had?
Chesterfield County, South Carolina has received 6 FEMA disaster declarations from 2022 to 2026. Of these, 1 were major disaster declarations.
What is the most common disaster type in Chesterfield County?
The most common disaster type in Chesterfield County is Hurricane, with 3 declarations. Other disaster types include Tropical Storm (2), Winter Storm (1).
How does Chesterfield County's disaster risk compare to the South Carolina average?
Chesterfield County has 6 disaster declarations, which is 19% lower than the South Carolina county average of 7.4 declarations. Compared to the national county average of 3.7, it is 60% higher.
How many major FEMA disaster declarations has Chesterfield County received?
Chesterfield County has received 1 major disaster declaration, representing 17% of all 6 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 (6,347 events), Hail (1,288 events), Flash Flood (1,077 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in Chesterfield County?
The most active year for disaster declarations in Chesterfield County was 2023, with 2 declarations. The county has FEMA disaster data spanning 2022 to 2026.
What is the overall disaster risk level for Chesterfield County?
With 6 FEMA disaster declarations on record, Chesterfield County lands in the moderate-risk band, not unusually disaster-prone, but not spared either.
What is the FEMA National Risk Index score for Chesterfield County?
According to the FEMA National Risk Index, Chesterfield County, South Carolina has an overall risk score of 74.0 out of 100 (Relatively Low). The county's social vulnerability rating is Very High and community resilience is Very Low. The Expected Annual Loss (EAL) score is Relatively Low, representing $22.5M in annualized losses.
Which natural hazard poses the greatest risk to Chesterfield County?
Based on FEMA NRI data, the highest-risk natural hazard in Chesterfield County is Hurricane (risk rating: Relatively Moderate). Other significant hazards include Strong Wind (Relatively High) and Tornado (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 Chesterfield County

Chesterfield County, SC has 6 FEMA disaster declarations on record, a moderate historical disaster load, 19% below the South Carolina county average.

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

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. 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 report a data error.