It depends on how many classes you take per semester. The typical range for a full-time student is between 8-12 credit hours split roughly evenly between Fall and Spring semesters. I know my typical semester of university has ran me around $9,000 US or above (I admit, I need to check my statement to be totally sure, but I'm in the ballpark). Of course, I'm a bit luckier than most because I get several grants due to various circumstances (no expected familial contribution, living on my own, studying full time, etc) that pay for around half to two-thirds of my tuition. Still, though, the rest needs to be covered by subsidized student loans, which will likely be well in excess of $10,000 by the time I'm done at the end of the year.
And I did the smart thing and went to community college, first, to get my general education credits out of the way.
[ETA]
So, I got my personal, actual numbers. I'm taking 5 classes, this semester. It is also my last semester of university. All told, after fees and other nickle-and-dime bullshit, I'm in for about $8,600 US in tuition fees. That's not counting books or any other additional expenses. This semester will also see about $1,400 US tacked on to my student loans. So, multiply that out by two, and you're looking at about $17,000 for a year's worth of university-level US tuition, assuming 5 courses in both Spring and Fall, and with no Summer classes.