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Lakes / Massachusetts / Middlesex County / Upper Mystic Lake

Upper Mystic Lake, Massachusetts

178 acres
Surface Area

Where It Sits, and How Deep It Goes

Locator - Massachusetts

BostonWorcesterUpper Mystic LakeMiddlesex Co.

42.44 degrees N, 71.15 degrees W - Middlesex County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Massachusetts Division of Fisheries and Wildlife coordinates, not by eye. Schematic - not a survey map.

How Upper Mystic Lake Stacks Up

Fish Species

Largemouth BassChain PickerelCarpYellow PerchBlack CrappieBluegillPumpkinseedBrown BullheadWhite SuckerGolden ShinerAmerican EelAlewife

Species recorded for this lake. Presence only - no abundance ratings.

Lakes Nearby

LakeCountyDistanceSurface Area
Lower Mystic LakeMiddlesex0.8 mi92.91 acres
Wedge PondMiddlesex1.2 mi24 acres
South ReservoirMiddlesex1.8 mi79.62 acres
Spy PondMiddlesex2.0 mi102 acres
Middle ReservoirMiddlesex2.1 mi55.65 acres
Horn PondMiddlesex2.2 mi116 acres

Straight-line distance between lake centers.

Facts and Figures

Waterbody ID135695140
CountyMiddlesex
Coordinates42.4373, -71.1489

Questions About Upper Mystic Lake

How Big Is Upper Mystic Lake?

Upper Mystic Lake covers 178 acres in Middlesex County, Massachusetts.

What Fish Are in Upper Mystic Lake?

The MassWildlife lists Largemouth Bass, Chain Pickerel, Carp, Yellow Perch, Black Crappie, Bluegill, Pumpkinseed, Brown Bullhead, White Sucker, Golden Shiner, American Eel and Alewife for Upper Mystic Lake.

What Is the Largest Lake in Middlesex County?

Whitehall Reservoir is the largest lake in Middlesex County, at 620 acres.

Deepest Natural Lakes in Massachusetts

#LakeCountySurface AreaMax Depth
1Walden PondMiddlesex62 acres100 ft
2Cliff PondBarnstable206 acres96 ft
3Wallum LakeWorcester322 acres81 ft
4Onota LakeBerkshire653 acres72 ft
5Ashumet PondBarnstable220 acres69 ft

All 211 Massachusetts lakes ranked by depth

Largest Lakes in Massachusetts

#LakeCountySurface AreaMax Depth
1Quabbin ReservoirFranklin24,012 acres-
2Wachusett ReservoirWorcester4,041 acres-
3Assawompset PondPlymouth2,652.37 acres-
4Watuppa PondBristol1,758.37 acres-
5South Watuppa PondBristol1,460 acres23 ft

All 784 Massachusetts lakes ranked by surface area

Sources: Massachusetts Division of Fisheries & Wildlife lake data (ID 135695140). Verified October 30, 2026.