Anyone have nearby school plugin working?

I just installed it and it does not show no matter what I tried. I went to the content box Nearby school and set it to show page View Detail, and all categories but it no show. Also set in admincp basic setting, choose field to be Zipcode.

Do I need another GreatSchools.org API key for it to work
Also I'm using 4.7.2, does it support this version?