Rio Rico is an unincorporated community and census-designated place (CDP) in Santa Cruz County, Arizona, United States. The population was 18,962 at the 2010 census. The Rio Rico CDP replaced the former CDPs of Rio Rico Northwest, Rio Rico Northeast, Rio Rico Southwest, and Rio Rico Southeast. == Geography == Rio Rico is located in Santa Cruz County, north of Nogales at the confluence of Sonoita Creek and the Santa Cruz River. According to the United States Census Bureau, the community has an area of 62.3 square miles (161.2 km2), all land. Rio Rico includes the site of the ghost town of Calabasas, Arizona. == Demographics == As of the census of 2010, there are 18,962 people living in the community, making it Santa Cruz County's second-largest community after its historic population center and county seat, Nogales. The population density was 304.6 inhabitants per square mile (117.6/km2). There are 6,356 housing units at an average density of 102.1 per square mile (39.4/km2). The racial makeup of the community was 85.3% Hispanic or Latino, 0.4% Black or African American, 0.6% Native American, 0.5% Asian, 0.1% Pacific Islander, and 1.8% from two or more races. Approximately 11.4% of the population is non-Hispanic white. == See also == Baca land grants List of census-designated places in Arizona == References == == External links == Media related to Rio Rico, Arizona at Wikimedia Commons