riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Berkeley County Disaster Risk

Berkeley County, South Carolina

FEMA Risk Rating

Relatively High

NRI score (0–100 relative scale)

94.8

FEMA composite county value

State Rank

#4

of 46, sorted high to low by RiskByCounty

Flood NRI score

80.7

higher coastal/inland value

Hazard Risk Breakdown

Five selected hazard categories out of FEMA's 18. Values are FEMA NRI v1.20 scores on a 0–100 relative scale.

Hurricane

98.3 / 100

Earthquake

97.7 / 100

Wildfire

89.8 / 100

Flood

80.7 / 100

Higher of FEMA Coastal Flooding (78.6) and Inland Flooding (80.7) NRI scores.

Tornado

78.1 / 100

FEMA NRI data summary

Selected hazard scores for Berkeley County

Among the five hazard categories displayed by RiskByCounty, hurricane has the highest NRI score for this county.

Hurricane
98.3
Earthquake
97.7
Wildfire
89.8
Flood
80.7
Tornado
78.1

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
80.7
Coastal Flooding
78.6
Inland Flooding
80.7

These five categories are a selected subset of FEMA's 18 natural hazards. FEMA's composite score and official rating are separate fields in the National Risk Index dataset.

FEMA National Risk Index documentation

Official Ready.gov resource

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Frequently Asked Questions

How many South Carolina county records are included?
RiskByCounty includes 46 South Carolina county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in South Carolina?
FEMA NRI v1.20 (December 2025) county rating counts for South Carolina: Very Low: 7; Relatively Low: 19; Relatively Moderate: 16; Relatively High: 4; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for South Carolina?
FEMA NRI v1.20 (December 2025) availability among 46 county records: Flood: 46 of 46; Wildfire: 46 of 46; Tornado: 46 of 46; Earthquake: 46 of 46; Hurricane: 46 of 46. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Berkeley County, SC?
Berkeley County has an official FEMA NRI v1.20 composite rating of Relatively High and an NRI score (0–100 relative scale) of 94.8. RiskByCounty ranks it 4th of 46 South Carolina county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Berkeley County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Berkeley County, Hurricane: 98.3; Earthquake: 97.7; Wildfire: 89.8; Flood: 80.7; Tornado: 78.1.
How is flood displayed for Berkeley County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Berkeley County, Coastal Flooding is 78.6, Inland Flooding is 80.7, and the displayed flood score is 80.7.

Counties with Similar Risk

Greenville County

South Carolina

-0.9

Relatively Moderate

NRI score 94.0

Dorchester County

South Carolina

-1.1

Relatively Moderate

NRI score 93.7

Richland County

South Carolina

-1.7

Relatively Moderate

NRI score 93.1

Published by RiskByCounty

County summaries are deterministic transformations of frozen FEMA county fields. No external subject-matter reviewer is credited.

Published · Updated

Data Source

County data sourced from FEMA National Risk Index v1.20, released December 2025. Values are labeled NRI score (0–100 relative scale). RiskByCounty displays five selected hazard categories out of FEMA's 18; flood is the higher of the Coastal Flooding and Inland Flooding source scores.

RiskByCounty presents county-level source fields and deterministic arithmetic summaries.

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