Solana Beach is an affluent city in San Diego County, California. The population was 12,867 at the 2010 census. According to the United States Census Bureau, the city has a total area of 3.6 square miles (9.3 km2). 3.5 square miles (9.1 km2) of it is land and 0.1 square miles (0.26 km2) of it (2.88%) is water.
Over 12,000 residents call this small beach community their home. The Pacific Ocean is to the west; the community of Cardiff-by-the-Sea to the north, and the City of Del Mar to the south. The unincorporated village of Rancho Santa Fe is located on the east side.