Rio Oso, California

Rio Oso is a census-designated place (CDP) in Sutter County, California. Rio Oso sits at an elevation of 52ft. The ZIP Code is 95674. The community is inside area code 530. The 2010 United States census reported Rio Oso's population was 356.GeographyAccording to the United States Census Bureau, the CDP covers an area of 6.5 square miles (16.9 km²), all of it land.DemographicsThe 2010 United States Census reported that Rio Oso had a population of 356. The population density was 54.5 people per square mile (21.0/km²). The racial makeup of Rio Oso was 274 (77.0%) White, 5 (1.4%) African American, 7 (2.0%) Native American, 26 (7.3%) Asian, 1 (0.3%) Pacific Islander, 32 (9.0%) from other races, and 11 (3.1%) from two or more races. Hispanic or Latino of any race were 53 persons (14.9%).The Census reported that 356 people (100% of the population) lived in households, 0 (0%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized.