If you mean only one grandparent is born in a Latin American country, then according to the U.S. Census Bureau, you are Hispanic.
All this stuff is self identifying too, so there are far more dishonest applicants than someone with a single LatAm grandparent marking themselves hispanic.
All this stuff is self identifying too, so there are far more dishonest applicants than someone with a single LatAm grandparent marking themselves hispanic.