Lakes / Texas / Hidalgo County / Reservoir Unit Number Two
Reservoir Unit Number Two, Texas
1,927.92 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Texas
26.41 degrees N, 97.95 degrees W - Hidalgo 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.
How Reservoir Unit Number Two Stacks Up
- Larger than 93% of the 1,641 lakes counted in Texas.
- The largest lake in Hidalgo County among those counted.
- About 211 miles from San Antonio, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Reservoir Unit Number One | Hidalgo | 1.4 mi | 460.85 acres |
| Harbin Reservoir | Willacy | 4.0 mi | 28.66 acres |
| Hargill Reservoir | Hidalgo | 5.6 mi | 42.26 acres |
| Teniente Wid Number 1 Lake | Willacy | 5.9 mi | 53.59 acres |
| Engelman Gardens Reservoir | Hidalgo | 6.3 mi | 26.44 acres |
| La Sal Vieja | Willacy | 8.4 mi | 2,231.61 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Reservoir Unit Number Two
How Big Is Reservoir Unit Number Two?
Reservoir Unit Number Two covers 1,927.92 acres in Hidalgo County, Texas.
What Is the Largest Lake in Hidalgo County?
Reservoir Unit Number Two is the largest lake in Hidalgo County, at 1,927.92 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: USGS National Hydrography Dataset (The National Map) lake data (ID 113369520). Verified October 30, 2026.