riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Somerset County Disaster Risk

Somerset County, New Jersey

FEMA Risk Rating

Relatively Moderate

NRI score (0–100 relative scale)

90.9

FEMA composite county value

State Rank

#15

of 21, sorted high to low by RiskByCounty

Flood NRI score

95.0

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

95.0 / 100

Higher of FEMA Coastal Flooding (29.4) and Inland Flooding (95.0) NRI scores.

Earthquake

88.5 / 100

Hurricane

83.5 / 100

Tornado

72.3 / 100

Wildfire

35.4 / 100

FEMA NRI data summary

Selected hazard scores for Somerset County

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

Flood
95.0
Earthquake
88.5
Hurricane
83.5
Tornado
72.3
Wildfire
35.4

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
95.0
Coastal Flooding
29.4
Inland Flooding
95.0

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 New Jersey county records are included?
RiskByCounty includes 21 New Jersey county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in New Jersey?
FEMA NRI v1.20 (December 2025) county rating counts for New Jersey: Very Low: 0; Relatively Low: 4; Relatively Moderate: 8; Relatively High: 9; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for New Jersey?
FEMA NRI v1.20 (December 2025) availability among 21 county records: Flood: 21 of 21; Wildfire: 21 of 21; Tornado: 21 of 21; Earthquake: 21 of 21; Hurricane: 21 of 21. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Somerset County, NJ?
Somerset County has an official FEMA NRI v1.20 composite rating of Relatively Moderate and an NRI score (0–100 relative scale) of 90.9. RiskByCounty ranks it 15th of 21 New Jersey county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Somerset County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Somerset County, Flood: 95.0; Earthquake: 88.5; Hurricane: 83.5; Tornado: 72.3; Wildfire: 35.4.
How is flood displayed for Somerset County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Somerset County, Coastal Flooding is 29.4, Inland Flooding is 95.0, and the displayed flood score is 95.0.

Counties with Similar Risk

Cape May County

New Jersey

+0.1

Relatively Moderate

NRI score 91.0

Morris County

New Jersey

+1.9

Relatively Moderate

NRI score 92.9

Atlantic County

New Jersey

+2.0

Relatively Moderate

NRI score 93.0

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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