"The war produced about 1,030,000 casualties (3% of the population), including about 620,000 soldier deaths—two-thirds by disease, and 50,000 civilians.] Binghamton University historian J. David Hacker believes the number of soldier deaths was approximately 750,000, 20% higher than traditionally estimated, and possibly as high as 850,000. The war accounted for roughly as many American deaths as all American deaths in other U.S. wars combined." - Wikipedia