Colorado - Izze
These carbonated fruit drinks exploded onto the market back in 2002, and even though they were bought by PepsiCo in 2006, they remain a Colorado invention.
Connecticut - Foxon Park
It's impossible to find a pizzeria in New Haven that doesn't stock Foxon Park, a Connecticut-bred soda company that's been around since 1922.
Delaware - Old Dominion Root Beer
Dominion, also a brewery, makes a heck of a root beer -- it's sweetened with honey & sugar, and it's made right in Dover.
Florida - Any Fountain Soda Out Of A 7-Eleven Big Gulp
Georgia - Coca-Cola
The headquarters of the world's favorite soda is located here. They've got a museum. RC Cola may have a strong foothold here, but this is Coke country.
Hawaii - Hawaiian Sun
OK, so it's not technically a real soft-drink since it's not carbonated. But ask any Hawaiian what their favorite beverage is, and they'll tell you it's Pass-O-Guava (or POG) nectar. And Hawaiian Sun makes the best.