Lake Fannie: depth, boat ramps and water quality
Boat: 1 ramp or launch on file for this water.
Start here: Launch at Lake Fannie Public Boat Ramp, 1 lane, concrete.
The lake
Lake Fannie covers 739 acres in Florida, across Polk County. It is a lake: the deepest point measured is at least 10 feet (3 m). Our records hold 17 species for this water.

Depth and bottom
Deepest measured point: at least 10 ft (3 m). That is the deepest contour line: the bottom goes deeper. We hold 24 depth contour lines for this water.

- 0–2 ft: 2.6% of the water
- 2–4 ft: 7.4% of the water
- 4–5 ft: 5.4% of the water
- 5–6 ft: 6.5% of the water
- 6–7 ft: 7.9% of the water
- 7–8 ft: 10.5% of the water
- 8–9 ft: 15.2% of the water
- 9–10 ft: 44.5% of the water
Water and conditions
Water clarity runs 2.7–5 feet on our readings, averaging 3.7 feet, from 135 readings. Our water temperature readings average 77°F; they do not cover the whole year, so this is not a yearly average. The coldest single reading we hold is 60°F and the warmest is 88°F; the warmest monthly average is 86°F. pH averages 7.5. These readings span 2016–2025.

1 ramp or launch on this water
On this water we hold 1 trailer ramp.
- Lake Fannie Public Boat Ramp — 1 lane, concrete, parking for 12 trailers (soft unpaved), no fee, open around the clock, dock. Winter Haven, Lake Region Lakes Management District. State Highway 544 / Lucerne Park Road, Winter Haven 33881 · website lakesmgmtdist.com
Our ramp table for this water is not complete: there may be more.
What is hard here
Only 1 public ramp is on file, so the launch decides where you fish. Alligators live in Florida fresh water. Keep clear of the bank edge at dawn and dusk, and keep pets away from it. Summer water sits at 86°F: heat and afternoon lightning are the real risks, not the fishing.
Where this data comes from
- Florida FWC — FWC Florida lake bathymetry: class A, a survey of the bottom.

































