Geist Reservoir Water Level
Indiana · updated daily from the U.S. Geological Survey
11.77 ft
Geist Reservoir is current reading available and rising (+1.86 ft in the last 7 days).
Change since yesterday: -0.34 ft
Reading as of 2026-08-15
Where Geist Reservoir sits historically
Today's level compared with every reading in our 0.3-year record for this lake.
Since yesterday
-0.34 ft
7-day change
+1.86 ft
30-day change
+1.86 ft
1-year change
— ft
Last 30 days
Last 12 months
Geist Reservoir records and averages
| Current level | 11.77 ft |
|---|---|
| Record high | 12.11 ft (2026-08-14) |
| Record low | 9.83 ft (2026-07-25) |
| Average of all readings | 10.08 ft |
| Data span | 0.3 years (121 readings) |
Frequently asked questions
Is Geist Reservoir full right now?
As of 2026-08-15, Geist Reservoir sits at 11.77 ft, which is current reading available.Over the past 30 days the level has risen 1.86 ft.
What is the water level at Geist Reservoir today?
The most recent reading is 11.77 ft (2026-08-15), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Geist Reservoir has ever been?
The highest level in our records is 12.11 ft on 2026-08-14. The lowest is 9.83 ft on 2026-07-25. Our record covers about 0.3 years of readings.
Why is Geist Reservoir changing right now?
Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Geist Reservoir has risen 1.86 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.
How much has Geist Reservoir changed over the past year?
Year-over-year comparison is not available for this lake yet. The full-history chart above covers 0.3 years, with a record high of 12.11 ft and a record low of 9.83 ft.
Nearby lakes in Indiana
Source: the U.S. Geological Survey. Readings are provisional and subject to revision by the publishing agency. All Indiana lake levels.