Rosamond is an unincorporated community in Kern County, California, US, near the Los Angeles county line. Rosamond is part of Greater Los Angeles and is located in the Mojave Desert just north of Lancaster and Palmdale, two of the largest cities in Antelope Valley. As of the 2010 Census, Rosamond's population was 18,150. For statistical purposes, the United States Census Bureau has defined Rosamond as a census-designated place (CDP).

Kern Transit, formerly Kern Regional Transit, is the operator of mass transportation in Kern County, California. Primarily, it provides inter-regional transportation, connecting outlying regions with the city of Bakersfield. It also provides inter-city transportation within specific regions. Kern (Regional) Transit is operated by the Kern County Department of Roads. The agency was founded in 1981. Its headquarters are located in Bakersfield.