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Lakes / Connecticut / Fairfield County / Putnam Lake

Putnam Lake, Connecticut

95.63 acres
Surface Area

Where It Sits, and How Deep It Goes

Locator - Connecticut

HartfordNew HavenPutnam LakeFairfield Co.

41.09 degrees N, 73.64 degrees W - Fairfield County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.

How Putnam Lake Stacks Up

Lakes Nearby

LakeCountyDistanceSurface Area
Rockwood LakeFairfield0.9 mi57.82 acres
Converse LakeFairfield3.0 mi99.83 acres
Mianus ReservoirFairfield3.9 mi200.9 acres
Mianus River PondFairfield3.9 mi51.55 acres
North Stamford ReservoirFairfield5.9 mi103.54 acres
Laurel ReservoirFairfield7.2 mi258.47 acres

Straight-line distance between lake centers.

Facts and Figures

Waterbody ID122229897
CountyFairfield
Coordinates41.0902, -73.6389

Questions About Putnam Lake

How Big Is Putnam Lake?

Putnam Lake covers 95.63 acres in Fairfield County, Connecticut.

What Is the Largest Lake in Fairfield County?

Lake Candlewood is the largest lake in Fairfield County, at 5,127.26 acres.

Largest Lakes in Connecticut

#LakeCountySurface AreaMax Depth
1Lake CandlewoodFairfield5,127.26 acres-
2Barkhamsted ReservoirLitchfield2,231.71 acres-
3Lake LillinonahLitchfield1,531.02 acres-
4Lake GaillardNew Haven1,090.97 acres-
5Bantam LakeLitchfield953.89 acres-

All 363 Connecticut lakes ranked by surface area

Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 122229897). Verified October 30, 2026.