You should probably confirm this with your possible schools, but I believe you would be considered a domestic applicant. For example, here is what Cornell Engineering says about citizenship and applicants:
Who is an international student? Any student who is not a U.S. citizen or permanent resident is considered to be an international student. Students who hold dual citizenship between the U.S. and another country are considered to be domestic applicants, not international applicants. US citizens, or permanent residents, who are living and attending high school outside of the US, are considered domestic applicants.