riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Marion County Disaster Risk

Marion County, Arkansas

FEMA Risk Rating

Relatively Low

NRI score (0–100 relative scale)

48.0

FEMA composite county value

State Rank

#49

of 75, sorted high to low by RiskByCounty

Flood NRI score

43.1

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

65.7 / 100

Wildfire

65.0 / 100

Tornado

55.8 / 100

Flood

43.1 / 100

Higher of FEMA Coastal Flooding (Not available) and Inland Flooding (43.1) NRI scores.

Hurricane

32.8 / 100

FEMA NRI data summary

Selected hazard scores for Marion County

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

Earthquake
65.7
Wildfire
65.0
Tornado
55.8
Flood
43.1
Hurricane
32.8

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
43.1
Coastal Flooding
Not available
Inland Flooding
43.1

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 Arkansas county records are included?
RiskByCounty includes 75 Arkansas county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Arkansas?
FEMA NRI v1.20 (December 2025) county rating counts for Arkansas: Very Low: 22; Relatively Low: 42; Relatively Moderate: 10; Relatively High: 1; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Arkansas?
FEMA NRI v1.20 (December 2025) availability among 75 county records: Flood: 75 of 75; Wildfire: 75 of 75; Tornado: 75 of 75; Earthquake: 75 of 75; Hurricane: 75 of 75. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Marion County, AR?
Marion County has an official FEMA NRI v1.20 composite rating of Relatively Low and an NRI score (0–100 relative scale) of 48.0. RiskByCounty ranks it 49th of 75 Arkansas county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Marion County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Marion County, Earthquake: 65.7; Wildfire: 65.0; Tornado: 55.8; Flood: 43.1; Hurricane: 32.8.
How is flood displayed for Marion County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Marion County, Coastal Flooding is Not available, Inland Flooding is 43.1, and the displayed flood score is 43.1.

Counties with Similar Risk

Logan County

Arkansas

+0.2

Relatively Low

NRI score 48.2

Howard County

Arkansas

+0.5

Relatively Low

NRI score 48.5

Franklin County

Arkansas

+1.4

Relatively Low

NRI score 49.4

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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