Question: when did illinois change drinking age to 21
Answer: State Pre-Prohibition ( prior to 1919 ) Post-Prohibition ( after 1933 ) 1970s / 26th Amendment ( adopted in 1971 ) 1980s / Drinking Age Act of 1984 21st century Alabama Pre 1881 : None 1881 : 21 ( none with consent of parent ) 21 1975 : Lowered to 19 1986 : Raised to 21 21 ( no one underage is allowed consumption Section 28 - 1 ) Alaska ? 21 1970 : Lowered to 19 1984 : Raised to 21 with grandfather clause ( if born before January 1 , 1965 ) 21 Arizona ? 21 1972 : Lowered to 19 1985 : Raised to 21 21 Arkansas Pre 1925 : None 1925 : 21 21 21 21 21 California Pre 1891 : Regulated by municipality / county ( common age was 16 ) 1