708
Recorded events
33
Counties affected
22
Direct deaths
$804.0M
Property damage
Oregon flood history: 708 recorded events across 33 counties between 1996 and 2026.
Decade by decade
Oregon flood history by decade
The 2010s are the busiest decade on record with 287 reported flood events across Oregon. Earlier decades are thinner because systematic reporting for this hazard expanded over time, not because the weather was calmer.
County ranking
Counties with the most flood events in Oregon
| Rank | County | Events | Deaths | Damage | Span |
|---|---|---|---|---|---|
| #1 | Coos County | 79 | 0 | $0 | 2003–2026 |
| #2 | Tillamook County | 61 | 1 | $47.2M | 2006–2023 |
| #3 | Clackamas County | 38 | 1 | $23.8M | 2005–2025 |
| #4 | Lane County | 34 | 0 | $3.9M | 2005–2025 |
| #5 | Polk County | 27 | 0 | $4.4M | 2005–2025 |
| #6 | Washington County | 26 | 2 | $5.1M | 2005–2024 |
| #7 | Benton County | 25 | 0 | $3.0M | 2005–2022 |
| #8 | Marion County | 23 | 0 | $1.0M | 2005–2025 |
| #9 | Curry County | 22 | 0 | $0 | 2002–2025 |
| #10 | Lincoln County | 22 | 0 | $5.3M | 1997–2023 |
| #11 | Douglas County | 20 | 0 | $0 | 2003–2025 |
| #12 | Umatilla County | 15 | 1 | $53.7M | 2011–2026 |
| #13 | Columbia County | 12 | 1 | $39.3M | 2007–2022 |
| #14 | Jackson County | 12 | 0 | $0 | 1996–2025 |
| #15 | Wallowa County | 11 | 0 | $179K | 2006–2020 |
| #16 | Multnomah County | 11 | 0 | $1.1M | 2007–2022 |
| #17 | Linn County | 9 | 2 | $1.0M | 2005–2020 |
| #18 | Grant County | 8 | 0 | $2.1M | 2010–2025 |
| #19 | Josephine County | 8 | 0 | $0 | 1996–2016 |
| #20 | Union County | 8 | 0 | $3.0M | 2008–2020 |
| #21 | Malheur County | 8 | 0 | $0 | 1998–2025 |
| #22 | Wheeler County | 7 | 0 | $1.0M | 2010–2020 |
| #23 | Clatsop County | 7 | 0 | $0 | 2009–2023 |
| #24 | Harney County | 7 | 0 | $1.0M | 2010–2025 |
| #25 | Klamath County | 7 | 0 | $20K | 1996–2025 |
Significant events
Deadliest flood events in Oregon
| Date | County | Scale | Deaths | Injuries |
|---|---|---|---|---|
| Jan 18, 2012 | Linn County | — | 2 | 0 |
| Dec 4, 2023 | Washington County | — | 1 | 0 |
| Jan 2, 2009 | Clackamas County | — | 1 | 0 |
| Dec 9, 2015 | Columbia County | — | 1 | 1 |
| Dec 3, 2007 | Tillamook County | — | 1 | 0 |
| Feb 6, 2020 | Umatilla County | — | 1 | 0 |
| Dec 3, 2007 | Washington County | — | 1 | 0 |