What stores carry decaf WHITE TEA?!

For specific types of tea, such as premium decaf white, I would search around online until you find something satisfactory.

By the way, there's not much caffeine in white tea, as it is plucked before its fully matured (and fully caffieinated) so if you were to get a normal white tea you could you could decaffeinate it yourself before each cup. By this I mean you should let it steep for less than a minute and pour it out. The first steeping takes out most of the caffeine.

But to directly answer your question, Stash has some white teas. I've seen them at Hen House and possibly walmart... but once again.. I would get some loose leaf off the internet!