Still, after an arduous process to determine figures as reliably as possible, the final numbers were complete. Because thousands died in the months immediately following the bombing, casualty estimates were determined through December 31, 1945: Number of people killed: 73,884 Number of people injured: 74,909 Number of people (not killed or injured) impacted by death or injury of family members, destruction of their homes and communities, and job loss: 120,820
