From the Chicago Sun-Times:
If you think you’re paying more sales tax today in Cook County, you are. The sales tax rate jumps 1 percent today, thanks to a Cook County Board vote, giving Chicago the dubious distinction of having the highest municipal sales tax rate in the nation.
You’ll pay the highest rate of sales tax in restaurants inside a special taxing district of Chicago that originated with the Metropolitan Pier and Exposition Authority’s renaming and Navy Pier’s renovation in 1989.
I doubt Chicago too far ahead of the District of Columbia on the sales-tax front. I always hated commuting into the nation’s capital unless I took lunch because I knew I was going to pay big taxes for eating out. In fact, I suspect that Chicago isn’t the leader of other big cities by much at all.