Lakes / Louisiana / St. Tammany County / Bayou Des Mats
Bayou Des Mats, Louisiana
1,614.46 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Louisiana
30.29 degrees N, 89.98 degrees W - St. Tammany 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 Bayou Des Mats Stacks Up
- Larger than 88% of the 664 lakes counted in Louisiana.
- About 24 miles from New Orleans, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Pontchartrain | Jefferson | 12 mi | 407,803.25 acres |
| Grand Lagoon | St. Tammany | 12 mi | 583.45 acres |
| Lake Maisson | Orleans | 14 mi | 62.03 acres |
| Lake Antoinne | Orleans | 15 mi | 71.47 acres |
| Little Lagoon | St. Tammany | 15 mi | 181.41 acres |
| Blind Lagoon | Orleans | 16 mi | 1,357.1 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Bayou Des Mats
How Big Is Bayou Des Mats?
Bayou Des Mats covers 1,614.46 acres in St. Tammany County, Louisiana.
What Is the Largest Lake in St. Tammany County?
North Pass is the largest lake in St. Tammany County, at 1,918.57 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 {22e44d9c-5a80-43da-8dc9-2be21657f008}). Verified October 30, 2026.