Lakes / Texas / Webb County / Lake Casa Blanca
Lake Casa Blanca, Texas
1,680 acres
Surface Area
36 ft
Max Depth
Where It Sits, and How Deep It Goes
Locator - Texas
27.55 degrees N, 99.43 degrees W - Webb County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Texas Parks and Wildlife Department coordinates, not by eye. Schematic - not a survey map.
Depth Profile - Lake Casa Blanca
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map.
How Lake Casa Blanca Stacks Up
- Deeper than 26% of the 107 natural Texas lakes ranked by depth.
- Larger than 93% of the 1,641 lakes counted in Texas.
- The largest lake in Webb County among those counted.
- About 142 miles from San Antonio, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Middle Pasture Lake | Webb | 8.1 mi | 122.32 acres |
| Link Lake Number 1 | Webb | 8.3 mi | 42.48 acres |
| San Ramon Fish Pond | Webb | 11 mi | 29.45 acres |
| O'Keefe Lake | Webb | 13 mi | 38.05 acres |
| Big Tank | Webb | 16 mi | 25.45 acres |
| Burrito Tank | Webb | 16 mi | 52.39 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Casa Blanca
How Big Is Lake Casa Blanca?
Lake Casa Blanca covers 1,680 acres in Webb County, Texas.
How Deep Is Lake Casa Blanca?
Lake Casa Blanca reaches 36 ft at its deepest.
What Is the Largest Lake in Webb County?
Lake Casa Blanca is the largest lake in Webb County, at 1,680 acres.
Deepest Natural Lakes in Texas
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Amistad Reservoir | Val Verde | 64,900 acres | 217 ft |
| 2 | Comanche Creek Reservoir | Pecos | 3,272 acres | 125 ft |
| 3 | Belton Lake | Bell | 12,385 acres | 124 ft |
| 4 | O. H. Ivie Reservoir | Concho | 19,149 acres | 119 ft |
| 5 | Stillhouse Hollow Lake | Bell | 6,429 acres | 107 ft |
All 107 Texas lakes ranked by depth
Largest Lakes in Texas
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Toledo Bend Reservoir | Sabine | 181,600 acres | 110 ft |
| 2 | Sam Rayburn Reservoir | San Augustine | 114,500 acres | 80 ft |
| 3 | Lake Livingston | San Jacinto | 90,000 acres | 77 ft |
| 4 | Falcon Reservoir | Zapata | 80,555.4 acres | - |
| 5 | Amistad Reservoir | Val Verde | 64,900 acres | 217 ft |
All 1,641 Texas lakes ranked by surface area
Sources: Texas Parks & Wildlife lake data (ID 96843694). Verified October 30, 2026.