Sunnyslope was a census-designated place (CDP) in Riverside County, California, United States.

[3] According to the United States Census Bureau, the CDP has a total area of 1.5 square miles (3.8 km2), all of it land.

On March 8, 2011, voters passed Measure A by a 54.03% YES vote, incorporating the areas of Mira Loma, Pedley, Rubidoux, Glen Avon, and Sunnyslope into the new city Jurupa Valley.

102 households (8.6%) were made up of individuals, and 35 (3.0%) had someone living alone who was 65 years of age or older.

There were 1,242 housing units at an average density of 842.9 per square mile (325.4/km2), of which 959 (80.9%) were owner-occupied, and 226 (19.1%) were occupied by renters.

There were 1,123 housing units at an average density of 814.2 per square mile (314.4/km2).

8.0% of all households were made up of individuals, and 1.9% had someone living alone who was 65 years of age or older.

In the California State Legislature, Sunnyslope is in the 31st Senate District, represented by Democrat Sabrina Cervantes, and in the 60th Assembly District, represented by Democrat Corey Jackson.