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Lakes & Reservoirs
Los Angeles County

Morris Reservoir in the San Gabriel Mountains. Los Angeles Almanac Photo.

Lake/Reservoir Type of Water Body Surface Area (Acres) Location
Alondra Park Lake Artificial --- Lawndale
Apollo Lake Artificial 26 Lancaster
Baldwin Hills Reservoir Former Reservoir --- Baldwin Hills
Baldwin Lake Natural Lake 4 Arcadia
Belvedere Park Lake Artificial --- Los Angeles (East)
Big Dalton Reservoir Reservoir --- Angeles National Forest
Big Tujunga Reservoir Reservoir 83 Angeles National Forest
Bouquet Reservoir Reservoir 628 Angeles National Forest
Bouton Lake Artificial --- Lakewood
Caldwell Lake Natural Lake --- Angeles National Forest
Castaic Lake Reservoir 2,230 Castaic
Cerritos Park Lake Artificial --- Cerritos
Chatsworth Reservoir Former Reservoir --- Los Angeles (Chatsworth)
Cogswell Reservoir Reservoir 146 Angeles National Forest
Crystal Lake Natural Lake 7 Angeles National Forest
Devil’s Gate Reservoir Reservoir --- La Cañada Flintridge
Lake/Reservoir Type of Water Body Surface Area (Acres) Location
Downey Wilderness Park Lakes Artificial --- Downey
Dry Canyon Reservoir Reservoir --- Santa Clarita
Eagle Rock Reservoir Reservoir --- Los Angeles (Eagle Rock)
Eaton Wash Reservoir Flood-Control Reservoir 54 Altadena
Echo Park Lake Former Reservoir --- Los Angeles (Echo Park)
El Dorado Park Lakes Artificial --- Long Beach
Elderberry Forebay Reservoir 450 Castaic
Elizabeth Lake Natural Lake 35 Lake Hughes Area
Encino Reservoir Reservoir 158 Los Angeles (Encino)
Fairmont Reservoir #2 Reservoir --- Fairmont Area
Hansen Dam Park Lake Flood-Control Reservoir 11 Los Angeles (Lake View Terrace)
Heavenly Pond Artificial --- Los Angeles (Beverly Crest)
Hollenbeck Park Lake Artificial 6 Los Angeles (East)
Hollywood Reservoir Reservoir 82 Los Angeles (Hollywood)
Jackson Lake Natural Lake 7 Angeles National Forest
John Ford Park Lake Artificial --- Bell Gardens
Kenneth Hahn Park Lake Artificial --- Baldwin Hills
La Mirada Park Lake Artificial --- La Mirada
Lake/Reservoir Type of Water Body Surface Area (Acres) Location
Lake Balboa Artificial 27 Los Angeles (Lake Balboa)
Lake Enchanto Reservoir --- Malibu
Lake Hughes Natural Lake 15 Angeles National Forest
Lake Lindero Artificial --- Agoura Hills
Lake Palmdale Artificial 586 Palmdale
Las Virgenes Reservoir Reservoir --- Westlake Village
Lees Lake Reservoir --- Los Angeles (West Hills)
Legg Lake Artificial --- Whittier Narrows
Lincoln Park Lake Artificial 2 Los Angeles (Lincoln Park)
Little Rock Reservoir Reservoir 150 Palmdale
Los Angeles Reservoir (Upper Van Norman Lake) Reservoir 175 San Fernando
Lower Franklin Reservoir Reservoir 32 Los Angeles (Beverly Crest)
MacArthur Park Lake Natural Lake 8 Los Angeles (Westlake Area)
Machado Lake Natural Lake 45 Los Angeles (Harbor City)
Magic Johnson Park Lake Artificial --- Willowbrook
Malibou Lake Reservoir 350 Agoura Hills
Lake/Reservoir Type of Water Body Surface Area (Acres) Location
Malibu Reservoir Reservoir 4 Malibu
Morris Reservoir Reservoir 417 Angeles Natl. Forest
Munz Lakes Natural Lake 8 Angeles Natl. Forest
Pacoima Reservoir Reservoir 68 Angeles Natl. Forest
Peck Road Park Lake Artificial 80 Arcadia
Piute Ponds Reservoir --- Edwards AF Base
Puddingstone Reservoir Reservoir 250 Angeles National Forest
Pyramid Lake Reservoir 1,360 Gorman
Quail Lake Reservoir 100 Angeles National Forest
Rosamond Lake* Natural Lake (Dry) --- Edwards AF Base
Rowena Reservoir Reservoir 5 Los Angeles (Los Feliz)
San Gabriel Reservoir Reservoir 525 Angeles National Forest
Santa Anita Reservoir Reservoir 17 Sierra Madre
Santa Fe Reservoir Flood-Control Reservoir 70 Irwindale
Sepulveda Flood Control Basin Flood-Control Reservoir 2,150 Los Angeles (Lake Balboa)
Silver Lake Reservoirs (Ivanhoe & Silverlake) Reservoir 96 Los Angeles (Silver Lake)
Lake/Reservoir Type of Water Body Surface Area (Acres) Location
Stone Canyon Reservoir Former Reservoir 117 Los Angeles (Bel-Air/Beverly Glen)
Stone Canyon Reservoir (Upper) Former Reservoir --- Los Angeles (Bel-Air/Beverly Glen)
Toluca Lake Natural Lake 6 Universal City
Una Lake Natural Lake --- Palmdale
Upper Franklin Reservoir (Franklin Lake) Reservoir 3 Los Angeles (Beverly Crest)
Westlake Lake Artificial 125 Westlake Village
Whittier Narrows Reservoir Flood-Control Reservoir --- Montebello


The Piute Ponds are the largest remaining freshwater wetlands in Los Angeles County.


The Baldwin Hills Dam/Reservoir disaster in 1963 was the first time aerial news footage was televised live to cover a news event. Television station KTLA pioneered the use of a helicopter to cover the incident.


In 2015, the 175 acre surface of the Los Angeles Reservoir was covered with 96 million black shade balls to minimize water evaporation and conserve water during the drought. It was projected that the shade balls would save about 300 million gallons of water a year. The balls cost 36 cents. Critics of the effort, however, suggest that the black balls raise resevior heat levels, thus creating a higher risk of bacterial growth. They further suggest that the city’s plan is not actually to minimize evaporation, but, rather, to avoid steep fines for failing EPA requirements for physical covers over potable water reservoirs.


The Los Angeles Reservoir holds 3.3 billion gallons of water, which could supply enough water to meet the needs of the entire city for up to three weeks.