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