Based on NOAA Storm Events Database records from 1996 to 2025, these are the District of Columbia counties with the most recorded flood events. District of Columbia tops the list with 191 events. The data includes river floods, flash floods, coastal flooding, and hurricane-related flooding.
| Rank | County | Total Events | River Floods | Flash Floods |
|---|---|---|---|---|
| 1 | District of Columbia | 191 | 71 | 118 |
Source: NOAA Storm Events Database (1996–2025).
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