riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Calvert County Disaster Risk

Calvert County, Maryland

FEMA Risk Rating

Very Low

NRI score (0–100 relative scale)

28.9

FEMA composite county value

State Rank

#22

of 24, sorted high to low by RiskByCounty

Flood NRI score

59.4

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

81.7 / 100

Flood

59.4 / 100

Higher of FEMA Coastal Flooding (59.4) and Inland Flooding (28.9) NRI scores.

Wildfire

52.6 / 100

Earthquake

50.1 / 100

Tornado

17.3 / 100

FEMA NRI data summary

Selected hazard scores for Calvert County

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

Hurricane
81.7
Flood
59.4
Wildfire
52.6
Earthquake
50.1
Tornado
17.3

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
59.4
Coastal Flooding
59.4
Inland Flooding
28.9

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 Maryland county records are included?
RiskByCounty includes 24 Maryland county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Maryland?
FEMA NRI v1.20 (December 2025) county rating counts for Maryland: Very Low: 6; Relatively Low: 13; Relatively Moderate: 4; Relatively High: 1; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Maryland?
FEMA NRI v1.20 (December 2025) availability among 24 county records: Flood: 24 of 24; Wildfire: 24 of 24; Tornado: 24 of 24; Earthquake: 24 of 24; Hurricane: 24 of 24. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Calvert County, MD?
Calvert County has an official FEMA NRI v1.20 composite rating of Very Low and an NRI score (0–100 relative scale) of 28.9. RiskByCounty ranks it 22nd of 24 Maryland county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Calvert County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Calvert County, Hurricane: 81.7; Flood: 59.4; Wildfire: 52.6; Earthquake: 50.1; Tornado: 17.3.
How is flood displayed for Calvert County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Calvert County, Coastal Flooding is 59.4, Inland Flooding is 28.9, and the displayed flood score is 59.4.

Counties with Similar Risk

Kent County

Maryland

-1.4

Very Low

NRI score 27.5

Queen Anne's County

Maryland

+6.7

Very Low

NRI score 35.6

Garrett County

Maryland

-12.9

Very Low

NRI score 16.0

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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