4th Iowa Volunteer Infantry Regiment

The 4th Regiment Iowa Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.

Service
The 4th Iowa Infantry was organized at Council Bluffs, Iowa and mustered into Federal forces on August 8, 1861.

The regiment was mustered out on July 24, 1865.

Total strength and casualties
Unit strength was 1,557. The regiment suffered 6 officers and 109 enlisted men who were killed in action or who died of their wounds and 2 officers and 285 enlisted men who died of disease, for a total of 402 fatalities. 338 were wounded.

Commanders

 * Colonel Grenville M. Dodge
 * Lieutenant Colonel John Galligan
 * Colonel James A. Williamson