What are my chances of getting into UMD College Park, UNC Wilmington, Penn State Univ Park, East Carolina Univ?

That sounds really good. I think your chances are great of getting into any of those colleges, especially because they're not private schools. I would advise against going to ECU though; I live in North Carolina and it has a REALLY bad reputation for being a party school. As in, anyone who goes to ECU is kind of laughed at. Just so you know, but if that’s where you really want to go, you don't have to cross it off your list completely.