Reference only. Data sourced from HUD/FHFA (2025). This site is a private entity and not affiliated with any government agency.
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Flood risk by county

National Risk Index scores attached to every county calculator.

CountyRiskScoreDetails
Allegany CountyModerate38View
Anne Arundel CountyLow25View
Baltimore CityLow25View
Baltimore CountyLow25View
Calvert CountyVery High95View
Caroline CountyVery High98View
Carroll CountyLow25View
Cecil CountyHigh75View
Charles CountyVery High95View
Dorchester CountyModerate31View
Frederick CountyVery High95View
Garrett CountyVery High98View
Harford CountyLow25View
Howard CountyLow25View
Kent CountyVery High98View
Montgomery CountyVery High95View
Prince George'S CountyVery High95View
Queen Anne'S CountyLow25View
Somerset CountyVery High83View
St. Mary'S CountyModerate31View
Talbot CountyModerate41View
Washington CountyModerate50View
Wicomico CountyVery High83View
Worcester CountyVery High83View