I think too there is much more than 1000 women when wearing it.Even if we consider only the ones like us,wearing it due to parents' decision(or similar).
I think there is several ones in every big cities,too.In some villages,too,if there is some very traditionnal families,it may be used(and,in these cases,such families in small communities like village can exchange ideas and using a chastity belt for their daughters can be one of them).