There's one right down the block. The glottal stops there every half hour and will drop you off downtown or at the mall or at the University.

Linguistically, however, I haven't noticed any here in Idaho. On the other hand, years back my youngest brother was studying Hebrew and taught me to say "bubble gum" and "I crave your body." The first has no glottal stops, but the latter does. I can't reproduce them, but there are three or four in the phrase.

No, I do not know Hebrew beyond those two things and "shalom."