Average flood risk score of all properties by county

Scores of 1-4 indicate minimal to moderate depth of flooding. Scores of 5-8 indicate major to severe depth of flooding. Scores of 9-10 indicate extreme depth of flooding.

The First Street Foundation Flood Model calculates a property’s Flood Factor®. Flood Factor® scores increase as the 30-year cumulative flood likelihood increases, or as the projected depth of flooding increases. Properties with a higher Flood Factor® are either more likely to flood, are more likely to experience high floods, or both.
Map: Emily Schmidt, APM Research Lab Source: First Street Foundation Get the data