NC State is a match for CS if you apply early (by 10/15). You may also have a good shot at the Park Scholarship, which includes 100% of costs to attend other than travel.
Maryland has a great CS program and the Banner Key program for merit aid.
If your parent’s can only contribute $15,000 annually, then you can only afford $20,500 with the loan you are able to take yourself each year. Your in state option will be the only one affordable without merit aid. Moreover, as long as the CS program is accredited by ABET, the school’s prestige is less important.