Riverdale (formerly, Liberty Settlement) is a census-designated place (CDP) in Fresno County, California, United States. The population was 2,416 at the 2000 census. Riverdale is located 23 miles (37 km) south of Fresno, at an elevation of 223 feet (68 m).
The first post office at Riverdale opened in 1875. The place was originally called Liberty Settlement, but was renamed due to its proximity to the Kings River.
As of the census of 2000, there were 2,416 people, 728 households, and 599 families residing in the CDP. The population density was 602.4 people per square mile (232.6/km²). There were 773 housing units at an average density of 192.7/sq mi (74.4/km²). The racial makeup of the CDP was 51.53% White, 1.24% Black or African American, 1.20% Native American, 1.95% Asian, 0.17% Pacific Islander, 34.85% from other races, and 9.06% from two or more races. 51.08% of the population were Hispanic or Latino of any race.
There were 728 households out of which 46.6% had children under the age of 18 living with them, 66.9% were married couples living together, 12.2% had a female householder with no husband present, and 17.6% were non-families. 15.4% of all households were made up of individuals and 7.7% had someone living alone who was 65 years of age or older. The average household size was 3.31 and the average family size was 3.68.
In the CDP the population was spread out with 35.6% under the age of 18, 10.3% from 18 to 24, 24.9% from 25 to 44, 18.5% from 45 to 64, and 10.6% who were 65 years of age or older. The median age was 28 years. For every 100 females there were 100.0 males. For every 100 females age 18 and over, there were 92.0 males.
The median income for a household in the CDP was $29,886, and the median income for a family was $31,667. Males had a median income of $26,458 versus $18,417 for females. The per capita income for the CDP was $12,568. About 21.0% of families and 26.5% of the population were below the poverty line, including 40.2% of those under age 18 and 5.4% of those age 65 or over.