Villanova is separated into four districts that cover campus, depending on what residence hall you currently reside in. If you registered to vote in PA previously, you likely need to update your vote registration form with your new residence hall information.
Many states have their own voter registration form. If your state has online voter registration, use that to make changes which is accessible through your state or local election website. This interactive state map contains state dates for upcoming elections and deadlines.
Don't forget to learn about absentee and early voting as alternatives to voting on Election Day. Find out the rules for your state. There are many helpful resources, including Vote.org for registering to vote outside of Pennsylvania.