Reservoir · Oklahoma · United States · USACE CWMS
Eufaula Lake
95.3% full
Capacity
2,855.02 hm³
Volume stored
2720 hm³
Coordinates
35.307°N, 95.362°W
Last updated
2026-07-30
Current fill
95.3%vs 7 days ago
-0.2%losing
vs 1 year ago
-5.5%year-over-year
7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-07-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 35.307, -95.362 · Open in Google Maps
About Eufaula Lake
As of July 30, 2026, Eufaula Lake is filled to 95.3% of its total capacity, holding roughly 2,720 hm³ of water out of a maximum 2,855 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 5.5 points below its level on the same date a year earlier.
Across the readings we hold for Eufaula Lake — 329 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 84.5% (April 1, 2026) to a high of 105.0% (July 31, 2021). On average the reservoir is fullest around June and at its lowest around February.
It is operated by USACE primarily for multiple purposes. It lies within the Oklahoma basin at 35.307°N, 95.362°W.
Key facts
- Current fill level
- 95.3%
- Water stored
- 2,720 hm³
- Total capacity
- 2,855 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▼ 5.5 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USACE
- Coordinates
- 35.307°N, 95.362°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 95.3% | 2,720 |
| 29 Jul 2026 | 95.5% | 2,727 |
| 28 Jul 2026 | 95.9% | 2,738 |
| 27 Jul 2026 | 96.4% | 2,753 |
| 26 Jul 2026 | 97.0% | 2,768 |
| 25 Jul 2026 | 97.5% | 2,783 |
| 24 Jul 2026 | 98.0% | 2,798 |
| 23 Jul 2026 | 98.3% | 2,806 |
| 22 Jul 2026 | 99.0% | 2,828 |
| 21 Jul 2026 | 99.7% | 2,847 |
| 20 Jul 2026 | 100.0% | 2,854 |
| 19 Jul 2026 | 100.2% | 2,860 |
Frequently asked questions
What is the current water level of Eufaula Lake?
As of July 30, 2026, Eufaula Lake is at 95.3% of its capacity, holding approximately 2,720 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Eufaula Lake reservoir full?
Eufaula Lake is essentially full, sitting at 95.3% of capacity as of July 30, 2026.
Is the water level at Eufaula Lake rising or falling?
The level at Eufaula Lake has been broadly stable over the latest week on record (-0.2 points).
How much water can Eufaula Lake hold?
Eufaula Lake has a total capacity of 2,855 hm³.
Where is Eufaula Lake reservoir located?
Eufaula Lake is located in Oklahoma, United States, within the Oklahoma basin (coordinates 35.307°N, 95.362°W).
What is Eufaula Lake used for?
Eufaula Lake is used primarily for multiple purposes, and is managed by USACE.