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