Depends where you go. I know we had some Chinese students in my college, they paid €10000 a year, compared to the Irish students who paid €3000 a year.
As far as I've heard, US colleges are on the order of $10000+ per semester.
There's also a point about sticker price vs. actual price. Anyone actually paying six figures for a Bachelor's degree is not only getting fleeced by an expensive school, but also can probably afford it (no need-based scholarships or grants?) and is also not very smart (no merit-based scholarships or grants?).
As far as I've heard, US colleges are on the order of $10000+ per semester.