According to the Officer Down Memorial Page , the NYPD has lost 930 officers in the line of duty since 1849 . This figure includes officers from agencies that were later absorbed by or became a part of the modern NYPD in addition to the NYPD itself . This number also includes officers killed on and off duty by gunfire of other officers on duty . The NYPD lost 23 officers in the September 11 , 2001 attacks , not including another 136 who died of illnesses related to the attacks
September 11 , 2001 attacks
September 11 attacks
New York City Police Department