Costs about this in New Zealand for everyone. State subsidised. Perhaps a touch more. And longer degrees are obviously more. Living costs excluded, although there is a small student allowance to help out.
Here is a question: how much does it cost the US, as a democracy, to not help everyone with the capacity to learn get an education? At the moment education levels in the US are often offset by immigration (immigrants with degrees and immigrants forcing their kids to study hard for at least the first generation). Accessible education is important to ensure an advanced society, innovation and healthy governance.