2,162
Recorded events
92
Counties affected
29
Direct deaths
$428.6M
Property damage
Indiana flash flood history: 2,162 recorded events across 92 counties between 1996 and 2026.
Decade by decade
Indiana flash flood history by decade
The 2000s are the busiest decade on record with 999 reported flash flood events across Indiana. 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 flash flood events in Indiana
| Rank | County | Events | Deaths | Damage | Span |
|---|---|---|---|---|---|
| #1 | Ripley County | 77 | 0 | $299K | 1996–2025 |
| #2 | Clark County | 76 | 1 | $337K | 1996–2026 |
| #3 | Dubois County | 74 | 0 | $75K | 1996–2025 |
| #4 | Vanderburgh County | 66 | 0 | $3.7M | 1996–2025 |
| #5 | Marion County | 58 | 0 | $6.0M | 1998–2026 |
| #6 | Dearborn County | 53 | 0 | $335K | 1996–2025 |
| #7 | Crawford County | 48 | 0 | $22K | 1996–2023 |
| #8 | Knox County | 44 | 0 | $592K | 1996–2026 |
| #9 | Gibson County | 40 | 1 | $1.3M | 1996–2025 |
| #10 | Harrison County | 39 | 0 | $680K | 1996–2023 |
| #11 | Lake County | 37 | 0 | $33.1M | 1996–2026 |
| #12 | Franklin County | 37 | 8 | $2.0M | 1996–2024 |
| #13 | Floyd County | 36 | 0 | $10K | 1996–2026 |
| #14 | Vigo County | 36 | 0 | $815K | 2000–2025 |
| #15 | Delaware County | 36 | 0 | $451K | 1998–2025 |
| #16 | Orange County | 35 | 0 | $250K | 1996–2026 |
| #17 | Washington County | 35 | 0 | $300K | 1996–2025 |
| #18 | Daviess County | 35 | 0 | $905K | 1996–2025 |
| #19 | Warrick County | 34 | 0 | $930K | 1996–2025 |
| #20 | Wayne County | 34 | 1 | $137K | 1996–2024 |
| #21 | Posey County | 32 | 0 | $982K | 1996–2025 |
| #22 | Spencer County | 32 | 0 | $1.3M | 1996–2025 |
| #23 | Switzerland County | 32 | 0 | $18.1M | 1996–2026 |
| #24 | Jefferson County | 32 | 1 | $360K | 1996–2026 |
| #25 | Lawrence County | 30 | 0 | $698K | 1998–2025 |
Significant events
Deadliest flash flood events in Indiana
| Date | County | Scale | Deaths | Injuries |
|---|---|---|---|---|
| Mar 20, 2020 | Franklin County | — | 6 | 0 |
| May 26, 2006 | Perry County | — | 3 | 0 |
| Sep 14, 2008 | Porter County | — | 2 | 0 |
| Jul 5, 2003 | Carroll County | — | 2 | 0 |
| Jul 28, 2023 | Franklin County | — | 2 | 0 |
| Jun 7, 2008 | Bartholomew County | — | 1 | 0 |
| Jan 4, 2015 | Greene County | — | 1 | 0 |
| Jun 7, 2008 | Bartholomew County | — | 1 | 0 |
| Jun 7, 2008 | Hendricks County | — | 1 | 0 |
| Jun 4, 2008 | Henry County | — | 1 | 0 |