US citizen, Ontario high school diploma

I’m an American citizen, but I have a high school diploma from Ontario, Canada. Would I then apply to colleges as an international student? Would I have to go through World Education Services to verify my credentials in order to apply to a college in the US? Has anyone been in the same situation and could give me any advice? That would be much appreciated. Thanks in advance.

At most US schools you would just submit your high school transcripts and SAT.ACT scores if required. US universities would be familiar with the Ontario education system.