riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Jackson County Disaster Risk

Jackson County, Michigan

FEMA Risk Rating

Relatively Low

NRI score (0–100 relative scale)

76.5

FEMA composite county value

State Rank

#15

of 83, sorted high to low by RiskByCounty

Flood NRI score

77.1

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.

Tornado

93.6 / 100

Flood

77.1 / 100

Higher of FEMA Coastal Flooding (Not available) and Inland Flooding (77.1) NRI scores.

Earthquake

68.1 / 100

Hurricane

39.5 / 100

Wildfire

32.9 / 100

FEMA NRI data summary

Selected hazard scores for Jackson County

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

Tornado
93.6
Flood
77.1
Earthquake
68.1
Hurricane
39.5
Wildfire
32.9

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
77.1
Coastal Flooding
Not available
Inland Flooding
77.1

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

Official Ready.gov resource

Continue to Ready.gov for federal emergency-planning information maintained outside RiskByCounty.

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Frequently Asked Questions

How many Michigan county records are included?
RiskByCounty includes 83 Michigan county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Michigan?
FEMA NRI v1.20 (December 2025) county rating counts for Michigan: Very Low: 33; Relatively Low: 37; Relatively Moderate: 10; Relatively High: 3; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Michigan?
FEMA NRI v1.20 (December 2025) availability among 83 county records: Flood: 83 of 83; Wildfire: 83 of 83; Tornado: 83 of 83; Earthquake: 83 of 83; Hurricane: 83 of 83. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Jackson County, MI?
Jackson 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 15th of 83 Michigan county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Jackson County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Jackson County, Tornado: 93.6; Flood: 77.1; Earthquake: 68.1; Hurricane: 39.5; Wildfire: 32.9.
How is flood displayed for Jackson County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Jackson County, Coastal Flooding is Not available, Inland Flooding is 77.1, and the displayed flood score is 77.1.

Counties with Similar Risk

Bay County

Michigan

+1.7

Relatively Low

NRI score 78.2

Calhoun County

Michigan

-1.9

Relatively Low

NRI score 74.5

Livingston County

Michigan

-3.0

Relatively Low

NRI score 73.5

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.

Explore more data for Jackson County

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