Every federal disaster in Trenton since 1955
Each square is a disaster or emergency declaration by the President or FEMA that covered Mercer County. Declarations make federal aid available after hurricanes, floods, storms, fires and other events, so this is a record of the big ones.
- Declarations
- 30since 1955
- Major disasters
- 19the most serious kind
- Since 2000
- 20declarations
- Most recent
- 2021Remnants of Hurricane Ida
FEMA's National Risk Index rates Mercer County's overall natural hazard risk relatively high, led by winter weather, strong wind and ice storm. The history above shows what has actually happened; the risk index estimates what is likely.
All declarations
| Declared | Event | Type | FEMA number |
|---|---|---|---|
| Sep 5, 2021 | Remnants of Hurricane Ida | Major disaster | DR-4614 |
| Sep 2, 2021 | Remnants of Hurricane Ida | Emergency | EM-3573 |
| Mar 25, 2020 | COVID-19 Pandemic | Major disaster | DR-4488 |
| Mar 13, 2020 | COVID-19 | Emergency | EM-3451 |
| Mar 14, 2016 | Severe Winter Storm and Snowstorm | Major disaster | DR-4264 |
| Oct 30, 2012 | Hurricane Sandy | Major disaster | DR-4086 |
| Oct 28, 2012 | Hurricane Sandy | Emergency | EM-3354 |
| Oct 14, 2011 | Remnants of Tropical Storm Lee | Major disaster | DR-4039 |
| Aug 31, 2011 | Hurricane Irene | Major disaster | DR-4021 |
| Aug 27, 2011 | Hurricane Irene | Emergency | EM-3332 |
| Feb 4, 2011 | Severe Winter Storm and Snowstorm | Major disaster | DR-1954 |
| Apr 2, 2010 | Severe Storms and Flooding | Major disaster | DR-1897 |
| Apr 26, 2007 | Severe Storms and Inland and Coastal Flooding | Major disaster | DR-1694 |
| Jul 7, 2006 | Severe Storms and Flooding | Major disaster | DR-1653 |
| Sep 19, 2005 | Hurricane Katrina Evacuation | Emergency | EM-3257 |
| Apr 19, 2005 | Severe Storms and Flooding | Major disaster | DR-1588 |
| Oct 1, 2004 | Severe Storms and Flooding | Major disaster | DR-1563 |
| Mar 20, 2003 | Snow | Emergency | EM-3181 |
| Sep 19, 2001 | Fires and Explosions | Emergency | EM-3169 |
| Nov 1, 2000 | West Nile Virus | Emergency | EM-3156 |
| Sep 18, 1999 | Hurricane Floyd Major Disaster Declarations | Major disaster | DR-1295 |
| Sep 17, 1999 | Hurricane Floyd Emergency Declarations | Emergency | EM-3148 |
| Jan 13, 1996 | Blizzard of 96 (Severe Snow Storm) | Major disaster | DR-1088 |
| Mar 17, 1993 | Severe Blizzard | Emergency | EM-3106 |
| Oct 19, 1980 | Water Shortage | Emergency | EM-3083 |
| Jul 23, 1975 | Heavy Rains, High Winds, Hail & Tornadoes | Major disaster | DR-477 |
| Sep 4, 1971 | Heavy Rains & Flooding | Major disaster | DR-310 |
| Aug 18, 1965 | Water Shortage | Major disaster | DR-205 |
| Mar 9, 1962 | Severe Storm, High Tides & Flooding | Major disaster | DR-124 |
| Aug 20, 1955 | Hurricane & Floods | Major disaster | DR-41 |
Frequently asked questions
How many federal disasters has Trenton had?
Since 1955, the federal government has issued 30 disaster or emergency declarations covering Mercer County, including 19 major disaster declarations. 20 of them came in 2000 or later.
What was the most recent federal disaster in Trenton?
Remnants of Hurricane Ida (Major disaster, declared September 5, 2021).
What kinds of disasters hit Trenton most often?
By FEMA incident type: hurricane (10), severe storm (7), snowstorm (4) and flood (3).
New to Trenton? The city profile covers flood maps and emergency alerts, and the risk summary shows FEMA's hazard ratings.
Source: FEMA, OpenFEMA Disaster Declarations Summaries (v2), downloaded October 18, 2026. We list declarations that named Mercer County, plus early statewide declarations from before FEMA designated individual counties. "Major disaster" declarations bring the widest federal aid; "emergency" declarations cover shorter-term help; "fire management" declarations help pay to fight large wildfires.