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