9declarations
6major disasters
2emergencies
1978first on record
2026latest
By hazard
Fire2
Biological2
Severe Storm2
Straight-Line Winds1
Hurricane1
Flood1
By decade
11970s
32000s
12010s
42020s
Population: 13,125 in April 2020, 12,796 in July 2024 (Census Bureau estimates).
Declarations naming Big Horn County
| Declared | Number | Title | Hazard | Programs | Federal aid |
|---|---|---|---|---|---|
| Apr 7, 2026 | DR-4902-MT | Severe Winter Storm and Straight-Line Winds | Straight-Line Winds | PA | $1.8 million |
| Jul 28, 2021 | FM-5403-MT | Pf Fire | Fire | PAHM | — |
| Mar 31, 2020 | DR-4508-MT | COVID-19 Pandemic | Biological | IHPPAHM | $92.9 million |
| Mar 13, 2020 | EM-3476-MT | COVID-19 | Biological | PA | — |
| Jun 17, 2011 | DR-1996-MT | Severe Storms and Flooding | Severe Storm | IHPPAHM | $56.3 million |
| Sep 13, 2005 | EM-3253-MT | Hurricane Katrina Evacuation | Hurricane | PA | $119,960 |
| May 28, 2001 | DR-1377-MT | Severe Winter Storms | Severe Storm | PAHM | $855,071 |
| Aug 30, 2000 | DR-1340-MT | Wildfires | Fire | IAHM | $311,009 |
| May 29, 1978 | DR-558-MT | Severe Storms & Flooding | Flood | IAPA | — |