Are IGCSES important for US colleges?

I got my IGCSE grades earlier today, I didn’t do so well however my grades at school are quite good, my SAT scores are good as well along with the extra curriculars I do. I just wanted to know which colleges look at IGCSE grades and how much they factor them when looking at your application.

I don’t think CC (or this forum, at least) know a lot about the IGCSE. It might be best to do some more research online or call an admissions offices in colleges on interest.