Antelope is a census-designated place in Sacramento County, California, United States located approximately 15 miles (24 km) northeast of downtown Sacramento and 5 miles (8 km) southwest of Roseville. The population was 45,770 at the 2010 census.
According to the United States Census Bureau, the community has a total area of 6.8 square miles (17.7 km2). Antelope is mostly flat, with very few hills and no major bodies of water.
The northern border of Antelope falls directly onto the line between Sacramento County and Placer County.
The eastern border first follows Roseville Road south from the county line to Butternut Drive. Then the border continues in the same general direction to Antelope Road, so that parcels on Adagio Way, Andante Drive and Katella Way are within Antelope CDP.
The southern border follows Antelope Road.
The western border has two parts. The first part extends from Antelope Rd northwards toward Elverta Rd along 28th St. The second part extends from Elverta Rd towards the Placer county line, along Dry Creek.