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