riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Grenada County Disaster Risk

Grenada County, Mississippi

FEMA Risk Rating

Relatively Low

NRI score (0–100 relative scale)

55.4

FEMA composite county value

State Rank

#37

of 82, sorted high to low by RiskByCounty

Flood NRI score

58.7

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.

Earthquake

82.5 / 100

Tornado

74.8 / 100

Hurricane

60.7 / 100

Flood

58.7 / 100

Higher of FEMA Coastal Flooding (Not available) and Inland Flooding (58.7) NRI scores.

Wildfire

49.1 / 100

FEMA NRI data summary

Selected hazard scores for Grenada County

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

Earthquake
82.5
Tornado
74.8
Hurricane
60.7
Flood
58.7
Wildfire
49.1

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
58.7
Coastal Flooding
Not available
Inland Flooding
58.7

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

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Frequently Asked Questions

How many Mississippi county records are included?
RiskByCounty includes 82 Mississippi county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Mississippi?
FEMA NRI v1.20 (December 2025) county rating counts for Mississippi: Very Low: 31; Relatively Low: 39; Relatively Moderate: 11; Relatively High: 1; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Mississippi?
FEMA NRI v1.20 (December 2025) availability among 82 county records: Flood: 82 of 82; Wildfire: 82 of 82; Tornado: 82 of 82; Earthquake: 82 of 82; Hurricane: 82 of 82. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Grenada County, MS?
Grenada County has an official FEMA NRI v1.20 composite rating of Relatively Low and an NRI score (0–100 relative scale) of 55.4. RiskByCounty ranks it 37th of 82 Mississippi county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Grenada County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Grenada County, Earthquake: 82.5; Tornado: 74.8; Hurricane: 60.7; Flood: 58.7; Wildfire: 49.1.
How is flood displayed for Grenada County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Grenada County, Coastal Flooding is Not available, Inland Flooding is 58.7, and the displayed flood score is 58.7.

Counties with Similar Risk

Wayne County

Mississippi

+0.3

Relatively Low

NRI score 55.7

Leake County

Mississippi

+0.3

Relatively Low

NRI score 55.7

Scott County

Mississippi

+0.5

Relatively Low

NRI score 55.9

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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