Iowa provided 75,797 white soldiers, five sailors and Marines, and 440 black soldiers in nine cavalry regiments, four light artillery batteries, 45 infantry regiments, and two infantry battalions to the Union Army.

The state lost 119 officers and 1946 enlisted men killed, 82 officer and 1393 enlisted men died of wounds, 107 officers and 8906 enlisted men died of disease, 3 officers and 114 enlisted men committed suicide, 12 enlisted men died of sunstroke, 5 enlisted men were murdered, 3 enlisted men were killed after capture, 3 enlisted men were executed by the Confederates, 3 officers and 48 enlisted men died of miscellaneous known causes, 2 officers and 137 enlisted men died of unstated causes, and 21 officers and 685 enlisted men died as prisoners of war making the total 337 officers and 13,252 enlisted men. These figures are only the dead, many times this number were wounded or maimed in battle.