Mercer information on the site is deemed reliable, but not guaranteed. Our Mercer stats, Mercer census, and Mercer information is aggregated from many different sources and may be dated. Currently, we have zero Mercer foreclosures of nine thousand two hundred eighty-nine Mercer, Kentucky housing units housing units, of which eight thousand four hundred twenty-three are occupied, six thousand two hundred eighty-one are owner occupied, two thousand one hundred forty-two are rented, eight hundred sixty-six are vacant, and two thousand six hundred eleven have mortgages. has eight thousand four hundred twenty-three households, and twenty thousand eight hundred seventeen citizens.