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