Lakes / Louisiana / Avoyelles County / Lac Grand Bayou
Lac Grand Bayou, Louisiana
97.87 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Louisiana
31.15 degrees N, 91.97 degrees W - Avoyelles County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Louisiana Department of Wildlife and Fisheries coordinates, not by eye. Schematic - not a survey map.
How Lac Grand Bayou Stacks Up
- Larger than 36% of the 664 lakes counted in Louisiana.
- About 64 miles from Lafayette, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lac Saulière | Avoyelles | 3.0 mi | 38.45 acres |
| Petit Lac du Grand Bryon | Avoyelles | 3.1 mi | 69.66 acres |
| Lac Bois Sec | Avoyelles | 3.2 mi | 52.89 acres |
| Lac Sainte Agnes | Avoyelles | 4.5 mi | 193.69 acres |
| Lac Didier | Avoyelles | 6.0 mi | 77.9 acres |
| Lac Ophelia | Avoyelles | 7.1 mi | 181.44 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lac Grand Bayou
How Big Is Lac Grand Bayou?
Lac Grand Bayou covers 97.87 acres in Avoyelles County, Louisiana.
What Is the Largest Lake in Avoyelles County?
Lower Sunk Lake is the largest lake in Avoyelles County, at 593.36 acres.
Deepest Natural Lakes in Louisiana
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | False River | Pointe Coupee | 3,212 acres | 65 ft |
| 2 | Vernon Lake | Vernon | 6 acres | 53 ft |
| 3 | Lake Concordia | Concordia | 1,026 acres | 50 ft |
| 4 | Caney Creek Reservoir | Jackson | 4,738 acres | 43 ft |
| 5 | Lake Providence | East Carroll | 1,380 acres | 37 ft |
All 27 Louisiana lakes ranked by depth
Largest Lakes in Louisiana
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Pontchartrain | Jefferson | 407,803.25 acres | - |
| 2 | Toledo Bend Reservoir | Sabine | 181,600 acres | 110 ft |
| 3 | Lake Maurepas | Livingston | 58,308.4 acres | - |
| 4 | Sabine Lake | Cameron | 56,867.74 acres | - |
| 5 | White Lake | Vermilion | 55,913.91 acres | - |
All 664 Louisiana lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 156160380). Verified October 30, 2026.