Lakes / Louisiana / Rapides County / Rock Island Lake
Rock Island Lake, Louisiana
44.93 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Louisiana
31.26 degrees N, 92.36 degrees W - Rapides 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 Rock Island Lake Stacks Up
- Larger than 15% of the 664 lakes counted in Louisiana.
- About 74 miles from Lafayette, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Buttonwood Lake | Rapides | 0.3 mi | 84.84 acres |
| Tanyard Lake | Rapides | 0.4 mi | 62.72 acres |
| Williams Lake | Rapides | 1.4 mi | 300.57 acres |
| Beaver Lake | Rapides | 2.3 mi | 115.96 acres |
| Big Lake | Rapides | 4.0 mi | 67.53 acres |
| Bayou Maria Basin | Rapides | 4.1 mi | 101.46 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Rock Island Lake
How Big Is Rock Island Lake?
Rock Island Lake covers 44.93 acres in Rapides County, Louisiana.
What Is the Largest Lake in Rapides County?
Lake Rodemacher is the largest lake in Rapides County, at 2,938 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 {F941194A-50D3-4696-A552-43EF9F65D8C8}). Verified October 30, 2026.