According to the citizen action group U.S. English, there are now 31 states that have English as their official state language. The states in blue have English as their official language, while the states in red do not. At first glance it would appear that the states without English as their official language are either traditionally liberal or have significant hispanic populations (but the research continues).
Interesting Fact: Hawaii has two official languages; English and Hawaiian.
“Language is the archives of history”
-Ralph Waldo Emerson