riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Seneca County Disaster Risk

Seneca County, Ohio

FEMA Risk Rating

Relatively Low

NRI score (0–100 relative scale)

46.9

FEMA composite county value

State Rank

#56

of 88, sorted high to low by RiskByCounty

Flood NRI score

61.2

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.

Flood

61.2 / 100

Higher of FEMA Coastal Flooding (Not available) and Inland Flooding (61.2) NRI scores.

Tornado

58.0 / 100

Earthquake

57.1 / 100

Hurricane

44.1 / 100

Wildfire

2.8 / 100

FEMA NRI data summary

Selected hazard scores for Seneca County

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

Flood
61.2
Tornado
58.0
Earthquake
57.1
Hurricane
44.1
Wildfire
2.8

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
61.2
Coastal Flooding
Not available
Inland Flooding
61.2

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 Ohio county records are included?
RiskByCounty includes 88 Ohio county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Ohio?
FEMA NRI v1.20 (December 2025) county rating counts for Ohio: Very Low: 26; Relatively Low: 51; Relatively Moderate: 8; Relatively High: 3; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Ohio?
FEMA NRI v1.20 (December 2025) availability among 88 county records: Flood: 88 of 88; Wildfire: 88 of 88; Tornado: 88 of 88; Earthquake: 88 of 88; Hurricane: 88 of 88. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Seneca County, OH?
Seneca County has an official FEMA NRI v1.20 composite rating of Relatively Low and an NRI score (0–100 relative scale) of 46.9. RiskByCounty ranks it 56th of 88 Ohio county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Seneca County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Seneca County, Flood: 61.2; Tornado: 58.0; Earthquake: 57.1; Hurricane: 44.1; Wildfire: 2.8.
How is flood displayed for Seneca County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Seneca County, Coastal Flooding is Not available, Inland Flooding is 61.2, and the displayed flood score is 61.2.

Counties with Similar Risk

Hocking County

Ohio

+0.4

Relatively Low

NRI score 47.3

Ashland County

Ohio

-0.5

Relatively Low

NRI score 46.3

Gallia County

Ohio

+1.5

Relatively Low

NRI score 48.3

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 Seneca County

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