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