What is your religious affiliation- are you reform, orthodox, or conservative?
I'm assuming you aren't orthodox or you would have looked into this before coming and wouldn't be living near campus- Newark doesn't have a big frum community! If you are, I think Elizabeth or Passaic would be a good bet for finding a rabbi. You will also find TONS of orthodox Jews at school to point you in the right direction.
Is your primary concern like high holy days services or shabbat services or a mix? Are you from out of state? If you want a weekly thing, you might have to do some searching if you are conservative or reform. I'm sure Newark has a synagogue somewhere if you wanted to go there but there are lots of neighboring towns with strong Jewish communities that I could give you more information about if you want to be directed- based on your observance level.
Hope this helps!