riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Northumberland County Disaster Risk

Northumberland County, Virginia

FEMA Risk Rating

Very Low

NRI score (0–100 relative scale)

40.0

FEMA composite county value

State Rank

#51

of 133, sorted high to low by RiskByCounty

Flood NRI score

68.4

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.

Hurricane

86.9 / 100

Flood

68.4 / 100

Higher of FEMA Coastal Flooding (68.4) and Inland Flooding (19.7) NRI scores.

Earthquake

38.9 / 100

Tornado

27.2 / 100

Wildfire

19.6 / 100

FEMA NRI data summary

Selected hazard scores for Northumberland County

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

Hurricane
86.9
Flood
68.4
Earthquake
38.9
Tornado
27.2
Wildfire
19.6

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
68.4
Coastal Flooding
68.4
Inland Flooding
19.7

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 Virginia county records are included?
RiskByCounty includes 133 Virginia county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Virginia?
FEMA NRI v1.20 (December 2025) county rating counts for Virginia: Very Low: 85; Relatively Low: 42; Relatively Moderate: 5; Relatively High: 1; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Virginia?
FEMA NRI v1.20 (December 2025) availability among 133 county records: Flood: 133 of 133; Wildfire: 133 of 133; Tornado: 133 of 133; Earthquake: 133 of 133; Hurricane: 133 of 133. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Northumberland County, VA?
Northumberland County has an official FEMA NRI v1.20 composite rating of Very Low and an NRI score (0–100 relative scale) of 40.0. RiskByCounty ranks it 51st of 133 Virginia county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Northumberland County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Northumberland County, Hurricane: 86.9; Flood: 68.4; Earthquake: 38.9; Tornado: 27.2; Wildfire: 19.6.
How is flood displayed for Northumberland County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Northumberland County, Coastal Flooding is 68.4, Inland Flooding is 19.7, and the displayed flood score is 68.4.

Counties with Similar Risk

Alleghany County

Virginia

-1.9

Very Low

NRI score 38.1

Scott County

Virginia

+2.0

Very Low

NRI score 42.0

Isle of Wight County

Virginia

-2.1

Very Low

NRI score 37.9

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 Northumberland County

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