Lakes / Louisiana / Grant County / Lake Iatt
Lake Iatt, Louisiana
Where It Sits, and How Deep It Goes
Locator - Louisiana
31.60 degrees N, 92.66 degrees W - Grant 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.
Depth Profile - Lake Iatt
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map.
How Lake Iatt Stacks Up
- Deeper than 37% of the 27 natural Louisiana lakes ranked by depth.
- Larger than 96% of the 664 lakes counted in Louisiana.
- The largest lake in Grant County among those counted.
- A shallow lake - typical of most Louisiana lakes, which run under 20 ft at their deepest.
Fish Species
Species recorded for this lake. Presence only - no abundance ratings.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Nantachie Lake | Grant | 8.5 mi | 1,424 acres |
| Chico Lake | Natchitoches | 12 mi | 28.88 acres |
| Brown Lake | Natchitoches | 13 mi | 37.35 acres |
| Mill Pond | Rapides | 13 mi | 44.38 acres |
| Lake Rodemacher | Rapides | 16 mi | 2,938 acres |
| Kisatchie Lake | Grant | 16 mi | 104.27 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Iatt
How Big Is Lake Iatt?
Lake Iatt covers 6,603 acres in Grant County, Louisiana.
How Deep Is Lake Iatt?
Lake Iatt reaches 19 ft at its deepest. Its average depth is 4.5 ft.
What Fish Are in Lake Iatt?
The LDWF lists Largemouth Bass, Florida Bass, Black Crappie, Blue Catfish, Flathead Catfish, Brown Bullhead, Freshwater Drum, Smallmouth Buffalo, Bowfin, Gizzard Shad and Threadfin Shad for Lake Iatt.
What Is the Largest Lake in Grant County?
Lake Iatt is the largest lake in Grant County, at 6,603 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