18declarations
12major disasters
6emergencies
1977first on record
2026latest
By hazard
Hurricane8
Snowstorm5
Biological2
Severe Storm2
Winter Storm1
By decade
11970s
41990s
32000s
62010s
42020s
Population: 113,778 in April 2020, 116,469 in July 2024 (Census Bureau estimates).
Declarations naming St. Mary's County
| Declared | Number | Title | Hazard | Programs | Federal aid |
|---|---|---|---|---|---|
| Jan 24, 2026 | EM-3634-MD | Severe Winter Storm | Winter Storm | PA | — |
| Feb 4, 2021 | DR-4583-MD | Tropical Storm Isaias | Hurricane | PAHM | $15.8 million |
| Mar 26, 2020 | DR-4491-MD | COVID-19 Pandemic | Biological | IHPPAHM | $3.38 billion |
| Mar 13, 2020 | EM-3430-MD | COVID-19 | Biological | PA | — |
| Nov 20, 2012 | DR-4091-MD | Hurricane Sandy | Hurricane | IHPPAHM | $37.7 million |
| Oct 28, 2012 | EM-3349-MD | Hurricane Sandy | Hurricane | PA | — |
| Aug 2, 2012 | DR-4075-MD | Severe Storms and Straight-Line Winds | Severe Storm | PAHM | $13.7 million |
| Sep 16, 2011 | DR-4034-MD | Hurricane Irene | Hurricane | PAHM | $22.6 million |
| Aug 27, 2011 | EM-3335-MD | Hurricane Irene | Hurricane | PA | $5.2 million |
| May 6, 2010 | DR-1910-MD | Severe Winter Storms and Snowstorms | Snowstorm | PAHM | $64.4 million |
| Sep 13, 2005 | EM-3251-MD | Hurricane Katrina Evacuation | Hurricane | PA | $1.6 million |
| Sep 19, 2003 | DR-1492-MD | Hurricane Isabel | Hurricane | IHPIAPAHM | $79.1 million |
| Apr 10, 2000 | DR-1324-MD | Severe Winter Storm | Severe Storm | PAHM | $12.5 million |
| Sep 24, 1999 | DR-1303-MD | Hurricane Floyd Major Disaster Declarations | Hurricane | IAPAHM | $6.5 million |
| Jan 11, 1996 | DR-1081-MD | Blizzard of 96 (Severe Snow Storm) | Snowstorm | PA | — |
| Mar 16, 1994 | DR-1016-MD | Severe Winter Weather and Ice Storms | Snowstorm | PA | — |
| Mar 16, 1993 | EM-3100-MD | Severe Snowfall & Winter Storm | Snowstorm | PA | — |
| Jan 26, 1977 | DR-524-MD | Ice Conditions | Snowstorm | IA | — |