| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
751  | Klawatti Lake  | United States, Washington Skagit | lake elevation 1636m | N 48° 33′ 20'' | W 121° 4′ 47'' |
| 752 | Klinkhammer Lakes Klinkhammer Lakes,Murphy Lake | United States, Washington Douglas | lake elevation 640m | N 48° 0′ 14'' | W 119° 27′ 34'' |
| 753 | Lamar Lake | United States, Washington Stevens | lake elevation 950m | N 48° 53′ 42'' | W 118° 6′ 21'' |
| 754 | Lake Lawrence | United States, Washington Thurston | lake elevation 131m | N 46° 51′ 7'' | W 122° 34′ 15'' |
| 755 | Lenore Lake Alkali Lake,Lake Lenore,Lenore Lake | United States, Washington Grant | lake elevation 329m | N 47° 29′ 14'' | W 119° 31′ 2'' |
| 756 | Liberty Lake | United States, Washington Spokane | lake elevation 626m | N 47° 38′ 42'' | W 117° 4′ 41'' |
| 757 | Little Cavanaugh Lake Lake Cavanaugh,Little Cavanaugh Lake,Little Cavunaugh Lake,Little Lake Cavanaugh,Sunbeam Lake,Sunris... | United States, Washington Snohomish | lake elevation 469m | N 47° 47′ 9'' | W 121° 39′ 59'' |
| 758 | Lake Lois | United States, Washington Thurston | lake elevation 49m | N 47° 2′ 26'' | W 122° 47′ 51'' |
| 759 | Long Lake | United States, Washington Thurston | lake elevation 49m | N 47° 1′ 8'' | W 122° 46′ 29'' |
| 760 | Loon Lake | United States, Washington Stevens | lake elevation 727m | N 48° 2′ 41'' | W 117° 37′ 20'' |
| 761 | Luna Lake | United States, Washington Whatcom | lake elevation 1494m | N 48° 49′ 25'' | W 121° 17′ 45'' |
| 762 | Lake Marcel | United States, Washington King | lake elevation 90m | N 47° 41′ 41'' | W 121° 55′ 0'' |
| 763 | Lake Martha Lake Martha,Martha Lake,Marthas Lake,Marthen's Lake,Marthens Lake,Warm Beach Lake | United States, Washington Snohomish | lake elevation 58m | N 48° 10′ 4'' | W 122° 20′ 24'' |
| 764 | Mason Lake Big Mason Lake,Mason Lake,Short Lake | United States, Washington King | lake elevation 1275m | N 47° 25′ 25'' | W 121° 33′ 4'' |
| 765 | Mason Lake Kellums Lake,Mason Lake | United States, Washington Mason | lake elevation 60m | N 47° 20′ 6'' | W 122° 57′ 26'' |
| 766 | McIntosh Lake Clear Lake,McIntosh Lake | United States, Washington Thurston | lake elevation 102m | N 46° 52′ 2'' | W 122° 46′ 0'' |
| 767 | McKenzie Lake | United States, Washington Thurston | lake elevation 100m | N 46° 56′ 15'' | W 122° 36′ 49'' |
| 768 | Melakwa Lake Mel '-a-kwa Lake,Melakwa Lake | United States, Washington King | lake elevation 1373m | N 47° 27′ 0'' | W 121° 28′ 7'' |
| 769 | Lake Meridian Cow Lake,Lake Meredian,Lake Meridian,Meridian Lake | United States, Washington King | lake elevation 114m | N 47° 21′ 46'' | W 122° 9′ 10'' |
| 770 | Merrill Lake | United States, Washington Cowlitz | lake elevation 465m | N 46° 5′ 38'' | W 122° 19′ 26'' |
| 771 | Snoqualmie Lake | United States, Washington King | lake elevation 960m | N 47° 33′ 59'' | W 121° 24′ 46'' |
| 772 | Snow Lake | United States, Washington Lewis | lake elevation 1427m | N 46° 45′ 26'' | W 121° 41′ 51'' |
| 773 | Soap Lake Le-to-to-weints,Sanitarium Lake,Smokiam,Soap Lake | United States, Washington Grant | lake elevation 329m | N 47° 24′ 20'' | W 119° 29′ 46'' |
| 774 | South Cascade Lake | United States, Washington Skagit | lake elevation 1614m | N 48° 22′ 17'' | W 121° 4′ 7'' |
| 775 | Southwick Lake | United States, Washington Thurston | lake elevation 59m | N 47° 0′ 17'' | W 122° 48′ 16'' |
| 776 | Spirit Lake | United States, Washington Skamania | lake elevation 1040m | N 46° 16′ 22'' | W 122° 8′ 25'' |
| 777 | Sprague Lake Big Lake,Colville Lake,Lake Colville,Silkatkwu,Sprague Lake | United States, Washington Adams | lake elevation 574m | N 47° 15′ 35'' | W 118° 3′ 56'' |
| 778 | Stansberry Lake Lewis Lake,Stansberry Lake,Stansbury Lake | United States, Washington Pierce | lake elevation 71m | N 47° 23′ 11'' | W 122° 43′ 40'' |
| 779 | Steigerwald Lake Herzog's Lake,Herzogs Lake,Shepherds Lake,Steigerwald Lake,Steigerwald Slough,Steigerwalds Lake | United States, Washington Clark | lake elevation 7m | N 45° 34′ 2'' | W 122° 18′ 14'' |
| 780 | Stout Lake | United States, Washington Skagit | lake elevation 1592m | N 48° 35′ 28'' | W 121° 11′ 46'' |
| 781 | Sulphide Lake | United States, Washington Whatcom | lake elevation 1160m | N 48° 48′ 17'' | W 121° 35′ 2'' |
| 782 | Sunday Lake | United States, Washington Snohomish | lake elevation 66m | N 48° 13′ 44'' | W 122° 15′ 27'' |
| 783 | Sunwood Lake | United States, Washington Thurston | lake elevation 76m | N 46° 58′ 11'' | W 122° 46′ 25'' |
| 784 | Surprise Lake | United States, Washington Pierce | lake elevation 96m | N 47° 14′ 47'' | W 122° 18′ 5'' |
| 785 | Lake Sutherland Lake Sutherland,Shuecraft Lake | United States, Washington Clallam | lake elevation 161m | N 48° 4′ 40'' | W 123° 42′ 30'' |
| 786 | Takhlakh Lake Tac-a-lak Lake,Takhlakh Lake,Takhlakh Pond | United States, Washington Skamania | lake elevation 1338m | N 46° 16′ 41'' | W 121° 35′ 47'' |
| 787 | Thornton Lakes | United States, Washington Whatcom | lake elevation 1437m | N 48° 41′ 16'' | W 121° 19′ 57'' |
| 788 | Tipsoo Lake | United States, Washington Pierce | lake elevation 1615m | N 46° 52′ 9'' | W 121° 31′ 2'' |
| 789 | Toad Lake Emerald Lake,Toad Lake | United States, Washington Whatcom | lake elevation 219m | N 48° 47′ 28'' | W 122° 23′ 42'' |
| 790 | Lake Toke Tie Lake Take Tie,Lake Take-tie,Lake Toke Tie,Lake Toke-Tie,Toke-Tie Lake | United States, Washington Skamania | lake elevation 1432m | N 45° 59′ 30'' | W 121° 47′ 24'' |
| 791 | Tomyhoi Lake Put-hish-go-hap Lake,Puthishgohap Lake,Puthishgohop Lake,Tamihi Lake,Taminy Lake,Tomyhoi Lake,Tummea... | United States, Washington Whatcom | lake elevation 1136m | N 48° 58′ 28'' | W 121° 40′ 52'' |
| 792 | Totem Lake Juanita Lake,Mud Lake,Totem Lake,Watstine Lake,Wittenmeyer Lake | United States, Washington King | lake elevation 40m | N 47° 42′ 39'' | W 122° 10′ 34'' |
| 793 | Trosper Lake | United States, Washington Thurston | lake elevation 50m | N 46° 59′ 44'' | W 122° 55′ 54'' |
| 794 | Lake Union Ka-chug,Lake Union,Xa-tcu | United States, Washington King | lake elevation 5m | N 47° 38′ 26'' | W 122° 20′ 4'' |
| 795 | Upper Melakwa Lake | United States, Washington King | lake elevation 1374m | N 47° 27′ 9'' | W 121° 28′ 12'' |
| 796 | Lake Valhalla Lake Vahalla,Lake Valhalla | United States, Washington Chelan | lake elevation 1474m | N 47° 47′ 23'' | W 121° 6′ 3'' |
| 797 | Monogram Lake | United States, Washington Skagit | lake elevation 1487m | N 48° 33′ 24'' | W 121° 16′ 49'' |
| 798 | Mowich Lake Crater Lake,Mowich Lake | United States, Washington Pierce | lake elevation 1505m | N 46° 56′ 17'' | W 121° 51′ 43'' |
| 799 | Munn Lake | United States, Washington Thurston | lake elevation 44m | N 46° 59′ 6'' | W 122° 52′ 45'' |
| 800 | Murphy Lakes | United States, Washington King | lake elevation 1445m | N 47° 41′ 2'' | W 121° 7′ 50'' |
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