If someone was born and raised in Poland, for example, then went to the United States and lived there, they would be considered Polish American.
My story, however, is a bit more complicated. I was born in Chile and stayed there with my family until I moved out as a child. Then, I lived in Brazil until I was 13 and moved to the United States. When I was 17, my family and I moved to France. Am I just Chilean-French or something? Chilean?
If asked, I would just say « Je suis né au Chili mais je réside à France maintenant. »
I found this to be an interesting question.
I don’t think of myself in terms like that. I’m American (as in United States of). If people ask where I’m from, I’d say Pennsylvania.
If asked what I am, in terms of what countries my ancestors came from, I would typically just list my four grandparents. Since that encompasses four different European countries, it’s too complicated to think of myself as a hyphenated American. Maybe you’re in that situation.
Ultimately, the label is yours, so you get to decide. No one else’s opinion matters. It’s your identity. Just say what feels right to you.