Lake Buchanan Water Level Today
Texas · Near full pool
- Elevation
- 1,018.51 ft
- From full pool
- −1.49 ft
- Percent of pool
- 96.2%
- 24-hour change
- +0.02 ft
- 7-day change
- −0.14 ft
- Reading
- Sep 21, 2026 · TWDB
Last year at Lake Buchanan
Lake Buchanan is 1.49 ft below full pool, at 1,018.51 ft, up 0.02 ft in the last 24 hours. That puts the lake at 96.2 percent of its conservation pool.
Over the last 7 days the level fell 0.14 ft, and over 30 days it fell 0.71 ft. In the 400 days of readings on this page the high was 1,019.96 ft on Jun 27, 2026 and the low was 1,017.40 ft on Jan 28, 2026, a range of 2.56 ft.
The reading is the Texas Water Development Board gauge, taken Sep 21, 2026. This page is rebuilt once a day from the agency feed; it is not a live gauge, so during a fast rise or a scheduled release check the TWDB page for hourly values.
About Lake Buchanan
Lake Buchanan is the uppermost and largest of the Highland Lakes, the Lower Colorado River Authority's other water-supply reservoir alongside Travis. Full pool is 1,020 ft. Because LCRA draws from Buchanan and Travis together, their levels are usually read side by side.
Lake Buchanan pool elevations
| Current elevation | 1,018.51 ft |
|---|---|
| Full pool (top of conservation) | 1,020.00 ft |
| Bottom of conservation pool | 937.00 ft |
| Conservation capacity | 866,694 acre-ft |
| Surface area at full pool | 22,147 acres |
| 30-day change | −0.71 ft |
| 1-year high | 1,019.96 ft (Jun 27, 2026) |
| 1-year low | 1,017.40 ft (Jan 28, 2026) |
| Operating agency | Texas Water Development Board |
Source: Texas Water Development Board. Read what full pool and flood pool mean.
More lakes in Texas
- Canyon Lake 908.33 ft, −0.67 ft from full
- Lake Travis 675.59 ft, −5.41 ft from full
- Lake Texoma 615.33 ft, −1.17 ft from full
- Medina Lake 1,020.96 ft, −43.24 ft from full
- Elephant Butte Lake 4,275.92 ft, −129.67 ft from full
- Lake Conroe 199.74 ft, −1.26 ft from full
Lake Buchanan level questions
What is the water level of Lake Buchanan today?
Lake Buchanan is at 1,018.51 ft as of Sep 21, 2026, −1.49 ft relative to full pool (1,020.00 ft). The 24-hour change is +0.02 ft.
What is full pool at Lake Buchanan?
Full pool, the top of the conservation pool, is 1,020.00 ft. The bottom of the conservation pool is 937.00 ft.
Is Lake Buchanan rising or falling?
Over the last 24 hours the level is +0.02 ft; over 7 days it fell 0.14 ft, and over 30 days it fell 0.71 ft.
Where does this Lake Buchanan level come from?
From the Texas Water Development Board (TWDB) public data feed for Lake Buchanan. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.