Rosemont is a census-designated place (CDP) in Sacramento County, California, United States.

[2] According to the United States Census Bureau, the CDP has a total area of 4.3 square miles (11 km2), all of it land.

2,033 households (24.3%) were made up of individuals, and 584 (7.0%) had someone living alone who was 65 years of age or older.

There were 8,991 housing units at an average density of 2,067.3 per square mile (798.2/km2), of which 4,899 (58.6%) were owner-occupied, and 3,464 (41.4%) were occupied by renters.

23.4% of all households were made up of individuals, and 4.8% had someone living alone who was 65 years of age or older.

The boundaries of Rosemont are Folsom Boulevard to the north, Bradshaw Road to the east, Jackson Highway (State Route 16) to the south, and South Watt Avenue to the west.

The commercial district of Rosemont, which includes retail and dining establishments, is primarily located along Kiefer Boulevard.

Rosemont contains a mixture of houses dating from the 1950s to newly constructed units.

Golden Empire Elementary is located in the southern portion of Rosemont.

The community is served by the Sacramento City Unified School District.

Sacramento Regional Transit operates the "Gold Line" of the light rail system which runs parallel to Folsom Boulevard.