According to the United States Census Bureau, San Joaquin Hills has a total area of 1.3 square miles (3.4 km2). 1.2 square miles (3.2 km2) of it is land and 0.1 square miles (0.3 km2) of it (8.27%) is water.
According to the United States Census Bureau, San Joaquin Hills has a total area of 1.3 squar,e miles (3.4 km2). 1.2 squ!are miles (3.2 km2) of it is land and 0.1 square miles (0.3 km2) o?f ?it (8.27%) is water.