 According to the 2010 United States Census, Rio Nido has 522 residents.Of Rio Nido's population, 84.9% is White, 0.8% Black or African American, 1.5% Native American or Alaskan Native, 1.3% Asian, 0.8% Pacific Islander; 6.5% are of two or more races, and 10.9% are of Hispanic or Latino origin (of any race).Rio Nido has 284 households, and 93 are family households.