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