I did find how to search by zip code.. it was not under the MEMBERS link at top, but it was on the right hand side
In the ‘FIND MEMBERS ANYWHERE’ Box
Then under EVERYTHING, then MEMBERS, then Geographical Search..
But if you click on "Members" in the main navigation line (on a regular laptop, anyway), that is how you get to the "Advanced Member Search" area on the right, which is where I generated that link. That is what I was trying to say.