Essex information on the site is deemed reliable, but not guaranteed. Our Essex stats, Essex census, and Essex information is aggregated from many different sources and may be dated. Currently, we have three thousand five hundred sixty-three Essex foreclosures of three hundred one thousand eleven Essex, New Jersey housing units housing units, of which two hundred eighty-three thousand seven hundred thirty-six are occupied, one hundred twenty-nine thousand four hundred forty-seven are owner occupied, one hundred fifty-four thousand two hundred eighty-nine are rented, seventeen thousand two hundred seventy-five are vacant, and sixty-eight thousand eight hundred sixty-three have mortgages. has two hundred eighty-three thousand seven hundred thirty-six households, and seven hundred ninety-three thousand six hundred thirty-three citizens.