Understand
English is the main language, but the Ironbound area is home to a significant Brazilian and Portuguese population.
There exists a Newark New York but it is a small rural town in central New York state so don't make the mistake of addressing someone in Newark, NY if what you are looking for is in the Newark closer to New York City/Manhattan.
Newark, NJ is pronounced Noo-wirk, as opposed to Newark, Delaware which is pronounced Noo-ark. Locals will often pronounce it "nork".