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Lakes / Massachusetts / Middlesex County / Spy Pond

Spy Pond, Massachusetts

102 acres
Surface Area
36 ft
Max Depth
12 ft
Average Depth

Where It Sits, and How Deep It Goes

Locator - Massachusetts

BostonWorcesterSpy PondMiddlesex Co.

42.41 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.

Depth Profile - Spy Pond

0 ft - SurfaceAverage Depth - 12 ftMax Depth - 36 ftA Typical Shallow Lake - Under 20 ft Deep

Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map.

How Spy Pond Stacks Up

Fish Species

Largemouth BassChain PickerelCommon CarpBlack CrappieYellow PerchWhite PerchBluegillPumpkinseedBrown BullheadWhite SuckerGolden ShinerBanded KillifishAmerican Eel

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

Lakes Nearby

LakeCountyDistanceSurface Area
Lower Mystic LakeMiddlesex1.3 mi92.91 acres
Fresh PondMiddlesex1.6 mi66 acres
Upper Mystic LakeMiddlesex2.0 mi178 acres
South ReservoirMiddlesex3.3 mi79.62 acres
Wedge PondMiddlesex3.3 mi24 acres
Middle ReservoirMiddlesex3.8 mi55.65 acres

Straight-line distance between lake centers.

Facts and Figures

Waterbody ID135695186
CountyMiddlesex
Coordinates42.4080, -71.1546

Questions About Spy Pond

How Big Is Spy Pond?

Spy Pond covers 102 acres in Middlesex County, Massachusetts.

How Deep Is Spy Pond?

Spy Pond reaches 36 ft at its deepest. Its average depth is 12 ft.

What Fish Are in Spy Pond?

The MassWildlife lists Largemouth Bass, Chain Pickerel, Common Carp, Black Crappie, Yellow Perch, White Perch, Bluegill, Pumpkinseed, Brown Bullhead, White Sucker, Golden Shiner, Banded Killifish and American Eel for Spy Pond.

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 135695186). Verified October 30, 2026.