Land & Water Area
Los Angeles County

Area Acres Square Miles Square Kilometers
Land 2,587,046 4,057.88 10,517.61
Water 443,557 693.06 1,790.85
Total 3,040,603 4,750.94 12,308.46

Source: U.S. Census Bureau

Land and water areas of individual cities and communities in Los Angeles County.

The Los Angeles Basin is the largest flat basin opening onto the Pacific Ocean.