Based on NOAA Storm Events Database records from 1996 to 2025, these are the Nevada counties with the most recorded flood events. Clark County tops the list with 402 events. The data includes river floods, flash floods, coastal flooding, and hurricane-related flooding.
| Rank | County | Total Events | River Floods | Flash Floods |
|---|---|---|---|---|
| 1 | Clark County | 402 | 33 | 369 |
| 2 | Lincoln County | 88 | 11 | 77 |
| 3 | Elko County | 77 | 16 | 61 |
| 4 | Nye County | 74 | 6 | 68 |
| 5 | Washoe County | 60 | 29 | 31 |
| 6 | Eureka County | 40 | 14 | 26 |
| 7 | Lyon County | 36 | 14 | 22 |
| 8 | Douglas County | 29 | 11 | 18 |
| 9 | White Pine County | 28 | 6 | 22 |
| 10 | Esmeralda County | 20 | 0 | 20 |
| 11 | Storey County | 18 | 7 | 11 |
| 12 | Lander County | 17 | 7 | 10 |
| 13 | Mineral County | 17 | 3 | 14 |
| 14 | Humboldt County | 14 | 7 | 7 |
| 15 | Carson City | 7 | 5 | 2 |
| 16 | Churchill County | 6 | 4 | 2 |
| 17 | Pershing County | 5 | 4 | 1 |
Source: NOAA Storm Events Database (1996–2025).
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