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