Lakes / Louisiana / Concordia County / Martin Bay
Martin Bay, Louisiana
99.97 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Louisiana
31.04 degrees N, 91.73 degrees W - Concordia 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 Martin Bay Stacks Up
- Larger than 37% of the 664 lakes counted in Louisiana.
- About 53 miles from Baton Rouge, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Flat Lake | Concordia | 1.6 mi | 39.53 acres |
| Kellers Lake | Concordia | 3.2 mi | 89.98 acres |
| Grand Bay | Concordia | 3.7 mi | 134.14 acres |
| Belson Lake | Avoyelles | 3.9 mi | 155.18 acres |
| Morel Lake | Concordia | 4.6 mi | 88.44 acres |
| Lac A'Sostien | Concordia | 6.4 mi | 35.99 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Martin Bay
How Big Is Martin Bay?
Martin Bay covers 99.97 acres in Concordia County, Louisiana.
What Is the Largest Lake in Concordia County?
Lake Saint John is the largest lake in Concordia County, at 2,126.93 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 156160728). Verified October 30, 2026.