Accents in the United States are pretty varied. After all, the country is a melting pot, so people come from all over the world and bring their mother tongue with them. Their ancestry and culture has changed the way people talk, but the cultural diversity of the United States has changed the way people talk even more-so.
Depending on where you live in the US, you probably have an accent. Even if you don’t hear it yourself, someone else will. Regardless of whether they’re from the United States or a neighboring nation, someone nearby thinks you talk funny. Or maybe they think your accent is unpleasant. Maybe, they think your accent is actually attractive or persuasive.