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