Cost of Attendance (COA): Every college must publish its cost for a student to attend. This is the "sticker" price and does not account for a student receiving scholarships, grants, work study, or loans.
You can go to any college's website, type Cost of Attendance in the search bar and find that college's COA.
Do remember: The COA is just an estimate. You can save money on your personal/miscellaneous expenses, room & board, and even books & supplies.
To get an idea of what the net cost (what you have to pay after receiving financial aid) might be for you, check out the resources at College Navigator by going here.
In general, don't rule out a college because of its COA. If you'd really like to go there, complete the application, apply for as many scholarships as possible, and submit the FAFSA by the priority deadline; then see what YOUR net cost will be before deciding where to attend.
This handout is a good reference to learn about college costs and includes reliable databases for searching for scholarships.
Depending on your family income, you may qualify for free tuition at a number of Texas colleges and universities. You do have to be a Texas resident as well as meet the income requirement. Check out this program guide for more information.