Rosemont is a village in Frederick County, Maryland, United States.

[4] According to the United States Census Bureau, the village has a total area of 0.56 square miles (1.45 km2), all land.

Despite its small size, the village is served by four separate state highways.

The most prominent of these is Maryland Route 17, which skims the southwest side of the village.

18.4% of all households were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older.

16.3% of all households were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older.

None of the families and 1.0% of the population were living below the poverty line, including none under eighteen and 4.2% of those over 64.