Key answer: FDNY losses on 9/11
On September 11, 2001, 343 members of the New York City Fire Department (FDNY) died while responding to the terrorist attacks. This total is specific to the FDNY and does not include emergency medical services personnel from other agencies, NYPD officers, Port Authority Police, or civilians. All 343 firefighters died during the response to the World Trade Center attacks; there were no on-duty FDNY fatalities in other locations on that day. The count is documented in department records, the 9/11 Victim Compensation Fund tables, and reports from the National Institute for Occupational Safety and Health (NIOSH).
| Metric | Verified Detail | Source Type |
|---|---|---|
| FDNY members killed | 343 | FDNY roll/NIOSH/9/11 VCF |
| Agency | New York City Fire Department (FDNY) | Organizational roster |
| Date | September 11, 2001 | Incident timeline |
| Primary location | World Trade Center site (including rescue, recovery, and later cleanup) | After-action reports |
| Not included | NYPD, Port Authority Police, EMS units, other agencies | Scope notes |
Context: FDNY’s role on 9/11
The FDNY was one of the largest responding agencies on 9/11. After the first plane struck the North Tower at 8:46 a.m., multiple companies were dispatched to the World Trade Center. A second alarm was initially declared; this was quickly escalated to multiple alarms as the scale of the disaster became evident. When the South Tower collapsed at 9:59 a.m., numerous companies were actively operating inside and on the perimeter. The North Tower collapsed at 10:28 a.m., creating a second, massive rescue and survival event. Many companies remained on scene for extended operations, including evacuation support, fire suppression in adjacent buildings, and initial recovery efforts in the hours and days that followed.
Who were the 343: units, ranks, and names
Companies and units represented
The 343 firefighters came from across the FDNY roster, including engine companies, ladder companies, rescue companies, and battalion chiefs. Engine and ladder companies were the primary units operating in the towers; rescue companies performed technical searches and victim removal; chiefs coordinated strategy and accountability. Specific companies sustained particularly heavy losses, with multiple firefighters from the same unit perishing in the collapse. Names and ranks of each FDNY member who died are maintained by the department and are publicly accessible through memorial and official records.
Names and roster highlights
While a full list is beyond the scope of this summary, the FDNY roll commemorates each member by name, rank, and company. Among the 343, there were captains, lieutenants, firefighters, and probationary firefighters, as well as members assigned to specialized units such as the Rescue and Squad companies. The department recognizes these individuals through an annual memorial ceremony at the 9/11 Memorial & Museum, where the names are read aloud and badges are placed at the South Pool reflecting pool. Accessible archives allow the public to search by name, company, and unit to learn the specifics of each case.
How the number is tracked and verified
The FDNY’s official count of 3343 is corroborated by multiple authoritative bodies. The NIOSH Firefighter Fatality Surveillance System lists each line-of-duty death, including supporting details such as company, location, and cause. The 9/11 Victim Compensation Fund maintained detailed tables that cross-reference names, injuries, and death dates. The FDNY’s internal roll call and after-action reviews also document the loss. Together, these sources provide a consistent, verified total of 343 firefighters, with no subsequent revision to this figure.
Broader emergency responder losses
While the FDNY toll stands at 343, other emergency organizations also suffered significant losses on 9/11. The New York City Police Department lost 23 officers; the Port Authority Police Department lost 37 officers; and emergency medical service providers, including private ambulance agencies and hospital-based units, collectively lost additional personnel. These responders operated under different agencies and are counted separately from the FDNY total.
Ongoing remembrance and legacy
The 343 FDNY members who died are commemorated at the National September 11 Memorial & Museum in New York, where their names are inscribed on the North and South Pools. The department continues to honor their service through annual ceremonies, educational outreach, and public memorials. Research and educational resources about 9/11 remain available for public study, ensuring that the sacrifices of these firefighters are documented and remembered.
Common clarifications
- Does the 343 include only those who died on 9/11 or also later from related illnesses? The 343 counts line-of-duty deaths that occurred on September 11, 2001, as a direct result of the attacks. Illnesses such as cancer and respiratory conditions attributable to the collapse dust have led to additional FDNY deaths in subsequent years, but these are tracked separately and are not part of the 343 figure.
- Do other agencies’ deaths add to this number? No. The 343 refers specifically to FDNY. Other agencies, including NYPD and Port Authority Police, are counted separately.
- Has the FDNY ever revised this number? No. The FDNY’s official count has remained 343 since the department’s reporting after 9/11, and it is consistent across federal and city databases.
Where to find official records
For those who wish to verify or review details, the FDNY’s roll and memorial pages, the 9/11 Victim Compensation Fund tables, the NIOSH Firefighter Fatality Surveillance System, and after-action reports from the FDNY and the National Incident Management System provide publicly accessible documentation of the 343 firefighters who died.