What % of people finish?

[natshar]

Im interested in this because I heard that in America only about half of all college freshman will graduate in six  years. That's crazy!

The 6-year graduation rate is 60% overall.  66 percent at private nonprofit institutions , 59 percent at public institutions, and 26 percent at private for-profit institutions.
https://nces.ed.gov/fastfacts/display.asp?id=40

Still not too great. In all cases avoid for profit schools.