| Lake | County | Latitude | Longitude |
| S P Lakes | Placer | 39.304206 | -120.560744 |
| Sacramento Natl Wild | Colusa | 39.373189 | -122.159676 |
| Saddle Lake | Plumas | 39.986690 | -121.350293 |
| Saddlebag Lake | Mono | 37.973260 | -119.275234 |
| Said Valley Reservoi | Lassen | 40.919858 | -120.755506 |
| Salt Spring Reservoi | Calaveras | 38.033552 | -120.746087 |
| Salt Springs Reservo | Amador | 38.497296 | -120.179371 |
| San Andreas Lake | San Mateo | 37.597335 | -122.425684 |
| San Clemente Reservo | Monterey | 36.429164 | -121.710331 |
| San Diego Reservoir | Tuolumne | 38.031061 | -120.389257 |
| San Dieguito R | San Diego | 33.039292 | -117.194418 |
| San Felipe Lake | San Benito | 36.980771 | -121.460363 |
| San Gabriel Reservoi | Los Angeles | 34.240996 | -117.852718 |
| San Luis Reservoir | Merced | 37.050839 | -121.133849 |
| San Luis State Recre | Merced | 37.059664 | -121.129385 |
| San Marcos Lake | San Diego | 33.120133 | -117.206579 |
| San Pablo Reservoir | Contra Costa | 37.923973 | -122.235678 |
| San Vincente Reservo | San Diego | 32.928837 | -116.917471 |
| Sand Canyon Reservoi | Orange | 33.642701 | -117.792111 |
| Sand Ridge Lake | Nevada | 39.375943 | -120.389028 |
| Sandy Wool Lake | Santa Clara | 37.453878 | -121.859445 |
| Sanford Lake | Nevada | 39.387909 | -120.603857 |
| Santa Margarita Lake | San Luis Obispo | 35.328517 | -120.464348 |
| Santee Lake A | San Diego | 32.866148 | -117.009112 |
| Santee Lake B | San Diego | 32.863048 | -117.009562 |
| Santee Lake C | San Diego | 32.859698 | -117.008412 |
| Santee Lake D | San Diego | 32.856498 | -117.007462 |
| Santee Lake E | San Diego | 32.853298 | -117.006662 |
| Santee Lake F | San Diego | 32.850848 | -117.006162 |
| Santee Lake G | San Diego | 32.847298 | -117.005312 |
| Sapphire Lake | Trinity | 40.999090 | -123.011880 |
| Sardine Lake | Inyo | 36.796990 | -118.351858 |
| Sawmill Lake | Nevada | 39.441680 | -120.596941 |
| Sawpit Reservoir | Los Angeles | 34.176373 | -117.984466 |
| Scammon Reservoir | Modoc | 41.635542 | -120.324489 |
| Schaads Reservoir | Calaveras | 38.385245 | -120.436253 |
| Schober Holes | Inyo | 37.184485 | -118.657738 |
| Schoonamaker Lake | Lassen | 40.780293 | -121.044429 |
| Schroder Lake | Lassen | 40.800509 | -121.119491 |
| Scorpion Lake | Trinity | 41.086119 | -122.642892 |
| Scotts Flat Reservoi | Nevada | 39.280502 | -120.915356 |
| Scotts Lake | Alpine | 38.763679 | -119.965693 |
| Seccombe Lake | San Bernardino | 34.109661 | -117.282125 |
| Sempervirens Reservo | Santa Cruz | 37.190995 | -122.207928 |
| Senator Wash | Imperial | 32.915400 | -114.472757 |
| Senator Wash Reservo | Imperial | 32.909201 | -114.487839 |
| Sepulveda Dam | Los Angeles | 34.164978 | -118.472174 |
| Sequoia Lake | Fresno | 36.731855 | -118.991321 |
| Serene Lake | Inyo | 37.438644 | -118.744018 |
| Seven Up Lake | Trinity | 40.964682 | -122.854480 |
| Seville Lake | Tulare | 36.682705 | -118.719054 |
| Shaffer Lake West | Merced | 37.369936 | -120.597682 |
| Shallow Lake | Tuolumne | 38.160894 | -119.699877 |
| Shamrock Lake | Mono | 37.997492 | -119.296882 |
| Sharon Lake | Tuolumne | 38.275758 | -119.700301 |
| Shasta Lake | Shasta | 40.826980 | -122.256629 |
| Shaver Lake | Fresno | 37.123190 | -119.285912 |
| Shealor Lakes | El Dorado | 38.657283 | -120.150676 |
| Sheep Camp Lake | Siskiyou | 41.810824 | -121.655791 |
| Sheepy Lake | Siskiyou | 41.979634 | -121.793345 |
| Shelly Lake | Siskiyou | 41.475423 | -123.062813 |
| Sherwin Lakes | Mono | 37.607881 | -118.943284 |
| Shimmy Lake | Trinity | 41.007473 | -122.804835 |
| Ship Mountain Lake | Del Norte | 41.749033 | -123.793076 |
| Shotgun Lake | Nevada | 39.422004 | -120.604526 |
| Shotoverin Lake | Lassen | 40.481237 | -121.144821 |
| Shower Lake | El Dorado | 38.741865 | -120.035128 |
| Sifford Lakes | Shasta | 40.450383 | -121.448008 |
| Silliman Lake | Tulare | 36.635698 | -118.701438 |
| Silva Flat Reservoir | Lassen | 40.956709 | -120.911269 |
| Silver Lake Reservoi | Los Angeles | 34.098059 | -118.263808 |
| Simas Lake | Santa Cruz | 36.997900 | -121.739610 |
| Simmons Trout Lake | San Bernardino | 34.243755 | -116.879612 |
| Siphon Reservoir | Orange | 33.711719 | -117.729085 |
| Sister Lake | Tuolumne | 38.018615 | -119.475312 |
| Skelton Lake | Mono | 37.576762 | -118.975622 |
| Skelton Lakes | Tuolumne | 37.939957 | -119.303029 |
| Ski Lake | Mono | 38.272925 | -119.601603 |
| Ski Land Lake | Riverside | 33.793507 | -117.169735 |
| Skinner Reservoir | Riverside | 33.589367 | -117.049687 |
| Slab Lakes | Madera | 37.617520 | -119.357978 |
| Slat Springs Reservo | Amador | 38.496996 | -120.179425 |
| Smedberg Lake | Tuolumne | 38.013463 | -119.485504 |
| Smith Reservoir | Lassen | 41.124081 | -120.490019 |
| Snider Lake | Lassen | 41.017931 | -120.923598 |
| Snider Waterhole | Lassen | 40.991589 | -120.907858 |
| Snow Flower Lake | Placer | 39.311866 | -120.590123 |
| Snowshoe Lake | Calaveras | 38.292820 | -120.275070 |
| Snowslide Lake | Siskiyou | 41.028580 | -122.971304 |
| Soda Dry Lake | San Bernardino | 35.175888 | -116.064635 |
| South Divide Lake | Lassen | 40.491900 | -121.209244 |
| South Fork Lakes | Inyo | 36.482725 | -118.216758 |
| South Guard Lake | Tulare | 36.692315 | -118.494983 |
| South Haiwee Reservo | Inyo | 36.158936 | -117.949833 |
| South Mountain Reser | Modoc | 41.804416 | -120.648537 |
| South Sugar Lake | Siskiyou | 41.279868 | -122.943780 |
| Southwest Slip | Los Angeles | 33.752868 | -118.278904 |
| Spanos Lake | San Joaquin | 38.046465 | -121.362067 |
| Spaulding Reservoir | Modoc | 41.510410 | -121.127169 |
| Spencer Lakes | Sierra | 39.699232 | -120.725318 |
| Spicer Meadow Reserv | Alpine | 38.399724 | -119.982910 |
| Spider Lake | El Dorado | 39.014529 | -120.274372 |
| Spillway | Los Angeles | 34.519935 | -118.614168 |
| Spirit Lake | Siskiyou | 41.558824 | -123.265063 |
| Spotted Fawn Lake | Tuolumne | 38.072255 | -119.777643 |
| Spotted Lakes | Madera | 37.552062 | -119.403534 |
| Spreading Basin | Los Angeles | 34.104358 | -118.011899 |
| Spreckels Lake | San Francisco | 37.770930 | -122.493932 |
| Sprig Lake | Santa Clara | 37.004749 | -121.682258 |
| Spuller Lake | Mono | 37.948421 | -119.285301 |
| Square Lake | Tehama | 40.041948 | -122.849706 |
| St Helena Reservoir | Napa | 38.508140 | -122.486304 |
| Stafford Lake | Marin | 38.114719 | -122.642282 |
| Stanford Lake | Mono | 37.492173 | -118.784665 |
| Stanford Lakes | Madera | 37.555773 | -119.359456 |
| Star Lakes | Madera | 37.513705 | -119.546187 |
| Starkweather Lake | Madera | 37.663039 | -119.073586 |
| Steamboat Lake | Siskiyou | 41.695671 | -122.458925 |
| Steinberger Slough | San Mateo | 37.525500 | -122.235865 |
| Stevens Lake | Alpine | 38.752059 | -119.785932 |
| Stoddard Lake | Trinity | 41.152053 | -122.755487 |
| Stone Canyon Reservo | Los Angeles | 34.111353 | -118.453764 |
| Stone Lake | Sacramento | 38.369527 | -121.486416 |
| Stony Ridge Lake | El Dorado | 38.979451 | -120.138835 |
| Stow Lake | San Francisco | 37.769079 | -122.476032 |
| Straylor Lake | Lassen | 40.814806 | -121.082936 |
| Stumpy Meadows Lake | El Dorado | 38.900081 | -120.588101 |
| Sucker Lake | Humboldt | 40.819811 | -123.615514 |
| Sugar Lake | Siskiyou | 41.297496 | -122.940807 |
| Sugar Pine Reservoir | Placer | 39.136674 | -120.792842 |
| Suisun Reservoir | Solano | 38.297963 | -122.145330 |
| Sullivan Lake | Mono | 37.741567 | -119.166508 |
| Sully Miller Lake | Orange | 33.695066 | -118.002805 |
| Sunbeam Lake | Imperial | 32.779087 | -115.681304 |
| Surprise Lake | Tuolumne | 38.021744 | -119.489066 |
| Susie Lake | El Dorado | 38.882092 | -120.127452 |
| Sutherland Reservoir | San Diego | 33.111811 | -116.773912 |
| Swains Hole | Lassen | 40.681823 | -121.268013 |
| Swanberger Reservoir | Lassen | 40.860633 | -120.814289 |
| Sweetwater Reservoir | San Diego | 32.700153 | -116.980408 |
| Sword Lake | Alpine | 38.407087 | -119.935040 |
| Sworinger Reservoir | Modoc | 41.190253 | -120.103811 |