Lake Sinclair
Putnam County, Georgia13,173 acresView mapDirections
No nutrient or algae sampling on record from Georgia EPD for this lake.
- 40 ft max depth
Lake Sinclair in Putnam County, Georgia has water-quality measurements published by Georgia EPD, shown here as reported. Maximum depth: 40 ft. Surface area: 13173 acres.
Lake Sinclair is a 13,173-acre lake in Putnam County, Georgia with a maximum depth of 40 feet. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Georgia EPD. Methodology: how these readings are compared.
What Lake Sinclair is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Deep water40 ft surveyed max depth
- Big water13,173 acres
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Sinclair is safe to swim in today is a call for the Georgia Environmental Protection Division and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Sinclair
These are the measurements Georgia EPD publishes for Lake Sinclair, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Lake Sinclair
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
40 ft
Surface area
13,173 acres
Shoreline
310.5 mi
Recreation & Access
- Crooked Creek MarinaSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Lake Sinclair
Compare lakeside cabins, hotels, and vacation rentals near Lake Sinclair in Putnam County, Georgia — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing Lake Sinclair
Nearby Lakes in Putnam County
Frequently asked questions about Lake Sinclair
Where is Lake Sinclair?
- Lake Sinclair is a lake in Putnam County, Georgia. Its water-quality measurements are published by Georgia EPD and shown on this page as reported.
What is the water quality of Lake Sinclair?
- Lake Sinclair in Putnam County, Georgia has water-quality measurements published by Georgia EPD, shown here as reported. Maximum depth: 40 ft. Surface area: 13173 acres.
Is Lake Sinclair safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Lake Sinclair?
- Lake Sinclair has a maximum depth of 40 feet. The lake covers 13173 acres.
Are there boat ramps on Lake Sinclair?
- Lake Sinclair has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Crooked Creek Marina.
Can I fish at Lake Sinclair?
- Lake Sinclair has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Georgia's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
Measurements for Lake Sinclair come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory