Dominican Americans are in strong numbers about 5 towns in the north. You can see the Wikipedia link on Dominicans-Americans. It gives a good break down of the northern NJ counties, also the Voter Capacity report and the 2004/2005 annual conference reports on DANR.org also have some good charts that will answer your question.
While southern NJ is not as populated with Dominicans as the north, it there are pockets of concentration, such as Atlantic City and surrounding regions.
You will find some of them in Camden, and very few in Atlantic City.
I am Dominican and I used to live in a town call Toms River (no Dominicans there).
