Reservoir · Indiana · United States · USACE CWMS
Patoka Lake
97.2% full
Capacity
301.79 hm³
Volume stored
293 hm³
Coordinates
38.434°N, 86.709°W
Last updated
2026-07-29
Current fill
97.2%vs 7 days ago
-0.2%losing
vs 1 year ago
+11.5%year-over-year
7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-07-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.434, -86.709 · Open in Google Maps
About Patoka Lake
As of July 29, 2026, Patoka Lake is filled to 97.2% of its total capacity, holding roughly 293 hm³ of water out of a maximum 302 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts), and it is 11.5 points above its level on the same date a year earlier.
Across the readings we hold for Patoka Lake — 118 data points between April 1, 2026 and July 29, 2026 — the level has ranged from a low of 63.3% (April 24, 2026) to a high of 100.0% (June 30, 2026).
It is operated by USACE primarily for multiple purposes. It lies within the Indiana basin at 38.434°N, 86.709°W.
Key facts
- Current fill level
- 97.2%
- Water stored
- 293 hm³
- Total capacity
- 302 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▲ 11.5 pts
- Primary use
- Multipurpose
- River basin
- Indiana
- Operator
- USACE
- Coordinates
- 38.434°N, 86.709°W
- Last updated
- July 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Jul 2026 | 97.2% | 293 |
| 28 Jul 2026 | 97.4% | 294 |
| 27 Jul 2026 | 97.7% | 295 |
| 26 Jul 2026 | 97.9% | 296 |
| 25 Jul 2026 | 98.2% | 296 |
| 24 Jul 2026 | 98.3% | 297 |
| 23 Jul 2026 | 98.6% | 298 |
| 22 Jul 2026 | 98.9% | 298 |
| 21 Jul 2026 | 99.1% | 299 |
| 20 Jul 2026 | 99.3% | 300 |
| 19 Jul 2026 | 99.5% | 300 |
| 18 Jul 2026 | 98.8% | 298 |
Frequently asked questions
What is the current water level of Patoka Lake?
As of July 29, 2026, Patoka Lake is at 97.2% of its capacity, holding approximately 293 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Patoka Lake reservoir full?
Patoka Lake is essentially full, sitting at 97.2% of capacity as of July 29, 2026.
Is the water level at Patoka Lake rising or falling?
The level at Patoka Lake has been broadly stable over the latest week on record (-0.2 points).
How much water can Patoka Lake hold?
Patoka Lake has a total capacity of 302 hm³.
Where is Patoka Lake reservoir located?
Patoka Lake is located in Indiana, United States, within the Indiana basin (coordinates 38.434°N, 86.709°W).
What is Patoka Lake used for?
Patoka Lake is used primarily for multiple purposes, and is managed by USACE.