riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Clarendon County Disaster Risk

Clarendon County, South Carolina

FEMA Risk Rating

Relatively Low

NRI score (0–100 relative scale)

76.5

FEMA composite county value

State Rank

#25

of 46, sorted high to low by RiskByCounty

Flood NRI score

50.2

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

94.2 / 100

Earthquake

88.4 / 100

Wildfire

81.2 / 100

Tornado

60.3 / 100

Flood

50.2 / 100

Higher of FEMA Coastal Flooding (0.0) and Inland Flooding (50.2) NRI scores.

FEMA NRI data summary

Selected hazard scores for Clarendon County

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

Hurricane
94.2
Earthquake
88.4
Wildfire
81.2
Tornado
60.3
Flood
50.2

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
50.2
Coastal Flooding
0.0
Inland Flooding
50.2

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 Clarendon County, SC?
Clarendon County has an official FEMA NRI v1.20 composite rating of Relatively Low and an NRI score (0–100 relative scale) of 76.5. RiskByCounty ranks it 25th of 46 South Carolina county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Clarendon County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Clarendon County, Hurricane: 94.2; Earthquake: 88.4; Wildfire: 81.2; Tornado: 60.3; Flood: 50.2.
How is flood displayed for Clarendon County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Clarendon County, Coastal Flooding is 0.0, Inland Flooding is 50.2, and the displayed flood score is 50.2.

Counties with Similar Risk

Laurens County

South Carolina

-0.3

Relatively Low

NRI score 76.2

Pickens County

South Carolina

+1.1

Relatively Low

NRI score 77.6

Jasper County

South Carolina

+2.1

Relatively Low

NRI score 78.6

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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