405
Recorded events
48
Counties affected
17
Direct deaths
$775.8M
Property damage
Colorado flood history: 405 recorded events across 48 counties between 1996 and 2025.
Decade by decade
Colorado flood history by decade
The 2020s are the busiest decade on record with 129 reported flood events across Colorado. 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 Colorado
| Rank | County | Events | Deaths | Damage | Span |
|---|---|---|---|---|---|
| #1 | Mesa County | 33 | 1 | $159K | 2001–2023 |
| #2 | Weld County | 23 | 1 | $235.8M | 1996–2025 |
| #3 | El Paso County | 19 | 2 | $7.0M | 1996–2023 |
| #4 | Routt County | 16 | 0 | $35K | 2001–2024 |
| #5 | Montrose County | 16 | 0 | $44K | 2001–2023 |
| #6 | Kit Carson County | 14 | 0 | $200K | 1998–2024 |
| #7 | Pueblo County | 14 | 0 | $25.0M | 1996–2024 |
| #8 | Garfield County | 14 | 1 | $1.8M | 2001–2023 |
| #9 | Gunnison County | 12 | 2 | $562K | 2000–2023 |
| #10 | Otero County | 12 | 1 | $0 | 2007–2024 |
| #11 | Montezuma County | 11 | 0 | $60K | 2000–2023 |
| #12 | Yuma County | 11 | 0 | $150K | 2007–2024 |
| #13 | Eagle County | 10 | 4 | $0 | 2000–2023 |
| #14 | Jefferson County | 9 | 0 | $6.1M | 1996–2023 |
| #15 | Delta County | 9 | 0 | $25K | 2001–2023 |
| #16 | Arapahoe County | 8 | 0 | $3.4M | 1999–2025 |
| #17 | Moffat County | 8 | 1 | $42K | 2008–2023 |
| #18 | San Miguel County | 7 | 0 | $4K | 2001–2023 |
| #19 | Morgan County | 7 | 0 | $31.4M | 1999–2015 |
| #20 | La Plata County | 7 | 0 | $3K | 2000–2025 |
| #21 | Denver County | 7 | 0 | $1.0M | 1996–2025 |
| #22 | Larimer County | 6 | 0 | $109.1M | 1996–2015 |
| #23 | Fremont County | 6 | 2 | $0 | 1997–2024 |
| #24 | Rio Blanco County | 6 | 0 | $0 | 2001–2010 |
| #25 | Archuleta County | 6 | 0 | $13K | 2010–2025 |
Significant events
Deadliest flood events in Colorado
| Date | County | Scale | Deaths | Injuries |
|---|---|---|---|---|
| Aug 6, 1997 | Fremont County | — | 2 | 0 |
| May 29, 2023 | Pitkin County | — | 1 | 0 |
| May 21, 2023 | Garfield County | — | 1 | 0 |
| Jun 30, 2023 | Weld County | — | 1 | 0 |
| Jun 6, 2019 | Eagle County | — | 1 | 0 |
| Jun 21, 2019 | Gunnison County | — | 1 | 0 |
| Jun 6, 2020 | Eagle County | — | 1 | 0 |
| Jun 21, 2019 | Gunnison County | — | 1 | 0 |
| Jun 3, 2023 | Eagle County | — | 1 | 0 |
| Jun 28, 2019 | Hinsdale County | — | 1 | 0 |