Try http://jellybelly.com/storelocator/ -- if it doesn't find anything based on your zip code, you can widen the search area on the bottom right (I increased mine to the max, 20 miles). After it brings up some choices, you can uncheck all the boxes except for "Sport Beans" and it'll only show you the stores that have that specific item. Of over 25 stores that sell Jelly Belly in my area, only 2 sell Sport Beans. Yikes!

PS: If any of you use Firefox as your web browser, it doesn't seem to work. I had to use Internet Explorer.