FEMA NRI v1.20Released December 2025Methodology

New Jersey Disaster Risk

Natural disaster risk data for all 21 counties.

FEMA release

December 2025

Mean county NRI score

90.8

Counties with Data

of 21 total

County risk atlas

New Jersey hazard exposure by county

FEMA NRI v1.20 scores on a 0–100 relative scale. Toggle the composite and five selected hazard categories out of FEMA's 18. Flood is the higher of Coastal Flooding and Inland Flooding NRI scores.

Counties

21/21

Mean county NRI score

90.8

Risk layers

Highest Risk Counties

Bergen County

Relatively High

NRI score 97.8

Middlesex County

Relatively High

NRI score 97.8

Essex County

Relatively High

NRI score 97.7

Hudson County

Relatively High

NRI score 97.2

Monmouth County

Relatively High

NRI score 96.3

Lowest Risk Counties

Salem County

Relatively Low

NRI score 76.5

Sussex County

Relatively Low

NRI score 77.4

Hunterdon County

Relatively Low

NRI score 78.7

Warren County

Relatively Low

NRI score 80.8

Cumberland County

Relatively Moderate

NRI score 82.6

All New Jersey Counties

County	NRI score	FEMA Rating	Flood	Wildfire	Tornado	Earthquake
Bergen County	97.8	Relatively High	100.0	21.7	92.3	96.0
Middlesex County	97.8	Relatively High	98.9	79.7	94.5	96.2
Essex County	97.7	Relatively High	98.8	10.6	94.9	95.6
Hudson County	97.2	Relatively High	98.6	4.5	90.7	95.3
Monmouth County	96.3	Relatively High	95.8	88.8	55.1	94.0
Ocean County	96.2	Relatively High	98.2	95.2	47.2	92.2
Passaic County	95.8	Relatively High	97.8	16.1	88.8	93.6
Union County	95.5	Relatively High	97.5	16.3	87.2	95.1
Mercer County	95.4	Relatively High	97.2	73.4	81.9	94.0
Burlington County	93.6	Relatively Moderate	96.4	92.2	78.2	92.0
Camden County	93.2	Relatively Moderate	95.6	86.3	84.8	93.8
Atlantic County	93.0	Relatively Moderate	96.2	94.3	53.2	88.0
Morris County	92.9	Relatively Moderate	96.3	30.0	79.9	88.8
Cape May County	91.0	Relatively Moderate	99.4	86.4	38.3	73.9
Somerset County	90.9	Relatively Moderate	95.0	35.4	72.3	88.5
Gloucester County	86.6	Relatively Moderate	87.9	79.7	69.6	89.3
Cumberland County	82.6	Relatively Moderate	88.4	85.8	54.0	87.2
Warren County	80.8	Relatively Low	86.5	23.4	49.7	70.8
Hunterdon County	78.7	Relatively Low	86.8	26.3	51.4	75.5
Sussex County	77.4	Relatively Low	77.3	36.7	44.1	71.1
Salem County	76.5	Relatively Low	95.8	68.1	35.1	79.6

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.

Official Ready.gov resource

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

Visit Ready.gov →

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.

← Back to All States

Explore more data for New Jersey

Property Tax Cost of Living Crime Rate Income Health Schools Water Quality Weather County Score