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