Del Mar is an affluent beach town in San Diego County, California. In 1882, the Southern California Railroad began its new route from San Diego to San Bernardino. Del Mar remains one of the most beautiful destinations along the Western Coastline. The City is comprised of two square miles of coastal land and has a population around 4,500. Del Mar’s climate is considered sub-tropical with warm dry summers and milder winters, and is considered one of the most desirable in the United States.