California reservoir levels

23 of 26 reservoirs in California have a current level reading, averaging 61% of full pool as of September 29, 2026.

Alisal Reservoir Santa Barbara 93.9% September 29, 2026 Private Alisal Reservoir 93.9% Santa Barbara County · Private · As of September 29, 2026 Tulloch Reservoir Calaveras 89.6% September 29, 2026 Utility Tulloch Reservoir 89.6% Calaveras County · Utility · As of September 29, 2026 Independence Lake Sierra 88% September 29, 2026 Utility Independence Lake 88% Sierra County · Utility · As of September 29, 2026 Cherry Lake Tuolumne 86.7% September 29, 2026 Local Government Cherry Lake 86.7% Tuolumne County · Local Government · As of September 29, 2026 Hetch Hetchy Reservoir Tuolumne 79.6% September 29, 2026 Local Government Hetch Hetchy Reservoir 79.6% Tuolumne County · Local Government · As of September 29, 2026 Indian Valley Reservoir Lake 77.9% September 29, 2026 Local Government Indian Valley Reservoir 77.9% Lake County · Local Government · As of September 29, 2026 Don Pedro Reservoir Tuolumne 75.6% September 29, 2026 Utility Don Pedro Reservoir 75.6% Tuolumne County · Utility · As of September 29, 2026 Donner Lake Nevada 74.9% September 29, 2026 Utility Donner Lake 74.9% Nevada County · Utility · As of September 29, 2026 Trinity Lake Trinity 69% September 28, 2026 Bureau of Reclamation Trinity Lake 69% Trinity County · Bureau of Reclamation · As of September 28, 2026 Lake Eleanor Tuolumne 68% September 29, 2026 Local Government Lake Eleanor 68% Tuolumne County · Local Government · As of September 29, 2026 Lake Piru Ventura 65.5% September 29, 2026 Local Government Lake Piru 65.5% Ventura County · Local Government · As of September 29, 2026 Stampede Reservoir Sierra 63.3% September 29, 2026 Bureau of Reclamation Stampede Reservoir 63.3% Sierra County · Bureau of Reclamation · As of September 29, 2026 Beardsley Lake Tuolumne 60.6% September 29, 2026 Utility Beardsley Lake 60.6% Tuolumne County · Utility · As of September 29, 2026 New Melones Lake Calaveras 56.4% September 28, 2026 Bureau of Reclamation New Melones Lake 56.4% Calaveras County · Bureau of Reclamation · As of September 28, 2026 Boca Reservoir Nevada 55.5% September 29, 2026 Bureau of Reclamation Boca Reservoir 55.5% Nevada County · Bureau of Reclamation · As of September 29, 2026 Lake Shasta Shasta 54% September 28, 2026 Bureau of Reclamation Lake Shasta 54% Shasta County · Bureau of Reclamation · As of September 28, 2026 Prosser Creek Reservoir Nevada 51.4% September 29, 2026 Bureau of Reclamation Prosser Creek Reservoir 51.4% Nevada County · Bureau of Reclamation · As of September 29, 2026 Folsom Lake Sacramento 48% September 28, 2026 Bureau of Reclamation Folsom Lake 48% Sacramento County · Bureau of Reclamation · As of September 28, 2026 Donnell Lake Tuolumne 40.9% September 29, 2026 Utility Donnell Lake 40.9% Tuolumne County · Utility · As of September 29, 2026 San Vicente Reservoir San Diego 36.9% September 29, 2026 Local Government San Vicente Reservoir 36.9% San Diego County · Local Government · As of September 29, 2026 Vail Lake Riverside 24.2% September 29, 2026 Utility Vail Lake 24.2% Riverside County · Utility · As of September 29, 2026 Gibraltar Reservoir Santa Barbara 23% September 29, 2026 Local Government Gibraltar Reservoir 23% Santa Barbara County · Local Government · As of September 29, 2026 El Capitan Reservoir San Diego 8% September 29, 2026 Local Government El Capitan Reservoir 8% San Diego County · Local Government · As of September 29, 2026 Bridgeport Reservoir Mono – September 29, 2026 Utility Bridgeport Reservoir – Mono County · Utility · As of September 29, 2026 Lower Twin Lake Mono – August 31, 2026 Private Lower Twin Lake – Mono County · Private · As of August 31, 2026 Upper Twin Lake Mono – August 31, 2026 Private Upper Twin Lake – Mono County · Private · As of August 31, 2026