when did drinking age change in iowa?
In 1973, Iowa's legal drinking age was further lowered to 18 years (65 GA, Chapter 140, section 10). In 1978, the age was raised to 19 years again (67 GA, Chapter 1069, section 1). In 1986, the legislature raised the legal drinking age to 21 years once again (71 GA, Chapter 1221, section 1).