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