Areas in NJ
The "known" Israelis towns in NJ are FairLawn/Tenafly in Bergen county and I think some towns in Midlleesex county like East Brunswick If you want to be really close to the city the ONLY good area in Jersey city is called Pavonia/Newport. you should watvh out from Newark some parts of jersey city and any major (more than 150,00) city in Jersey city. Hope it makes sense ... good luck