Which year was the Iowa flag adopted? The Iowa state flag was adopted in the year 1921. This 4 ft x 6 ft nylon flag with golden fringe comes along with a flag base, and optional cord & tassel. You can also choose from a variety of pole toppers like 7-inch metal gold eagle, gold spear (plastic), gold metal spear, Army metal spear, gold metal parade ball, or Texas Star Metal. You can opt between an oak and a telescoping flag pole.