Rio Arriba information on the site is deemed reliable, but not guaranteed. Our Rio Arriba stats, Rio Arriba census, and Rio Arriba information is aggregated from many different sources and may be dated. Currently, we have thirteen Rio Arriba foreclosures of eighteen thousand sixteen Rio Arriba, New Mexico housing units housing units, of which fifteen thousand forty-four are occupied, twelve thousand two hundred eighty-one are owner occupied, two thousand seven hundred sixty-three are rented, two thousand nine hundred seventy-two are vacant, and two thousand one hundred eighty-five have mortgages. has fifteen thousand forty-four households, and forty-one thousand one hundred ninety citizens.