You can currently purchase Yuengling in Kentucky, Arkansas, New York, Pennsylvania, New Jersey, Maryland, Delaware, Washington D.C., West Virginia, Virginia, North Carolina, South Carolina, Tennessee, Alabama, Georgia, Florida, Connecticut, Indiana, Louisiana, Texas, Massachusetts, Mississippi, Ohio, and Rhode Island.
It's not even in Illinois yet. They just added Oklahoma and Missouri. The map shows a few places just over the border from Keokuk in Missouri.
Decent beer but not worth driving to Missouri