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