Reservoir · Oklahoma · United States · USGS NWIS
Lake O' the Cherokees at Langley, OK
85.8% full
Capacity
2,010.58 hm³
Volume stored
1726 hm³
Coordinates
36.469°N, 95.041°W
Last updated
2026-07-29
Current fill
85.8%vs 7 days ago
-0.5%losing
vs 1 year ago
-6.5%year-over-year
7-day trend
→stable
Data source: USGS National Water Information System (NWIS) — 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: 2026-07-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 36.469, -95.041 · Open in Google Maps
About Lake O' the Cherokees at Langley, OK
As of July 29, 2026, Lake O' the Cherokees at Langley, OK is filled to 85.8% of its total capacity, holding roughly 1,726 hm³ of water out of a maximum 2,011 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.5 pts), and it is 6.5 points below its level on the same date a year earlier.
Across the readings we hold for Lake O' the Cherokees at Langley, OK — 1461 data points between July 30, 2022 and July 29, 2026 — the level has ranged from a low of 79.1% (February 21, 2025) to a high of 105.0% (June 8, 2025). On average the reservoir is fullest around June and at its lowest around October.
It is operated by USGS primarily for multiple purposes. It lies within the Oklahoma basin at 36.469°N, 95.041°W.
Key facts
- Current fill level
- 85.8%
- Water stored
- 1,726 hm³
- Total capacity
- 2,011 hm³
- 7-day change
- ▼ 0.5 pts
- Year-on-year
- ▼ 6.5 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USGS
- Coordinates
- 36.469°N, 95.041°W
- Last updated
- July 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Jul 2026 | 85.8% | 1,726 |
| 28 Jul 2026 | 86.3% | 1,734 |
| 27 Jul 2026 | 86.3% | 1,736 |
| 26 Jul 2026 | 86.3% | 1,734 |
| 25 Jul 2026 | 86.2% | 1,733 |
| 24 Jul 2026 | 86.1% | 1,731 |
| 23 Jul 2026 | 85.8% | 1,724 |
| 22 Jul 2026 | 85.6% | 1,722 |
| 21 Jul 2026 | 85.4% | 1,717 |
| 20 Jul 2026 | 85.6% | 1,721 |
| 19 Jul 2026 | 85.8% | 1,724 |
| 18 Jul 2026 | 86.3% | 1,736 |
Frequently asked questions
What is the current water level of Lake O' the Cherokees at Langley, OK?
As of July 29, 2026, Lake O' the Cherokees at Langley, OK is at 85.8% of its capacity, holding approximately 1,726 hm³ of water, according to USGS NWIS data.
Is Lake O' the Cherokees at Langley, OK reservoir full?
No. As of July 29, 2026, Lake O' the Cherokees at Langley, OK is high at 85.8% of its capacity, so it is not full.
Is the water level at Lake O' the Cherokees at Langley, OK rising or falling?
The level at Lake O' the Cherokees at Langley, OK has been broadly stable over the latest week on record (-0.5 points).
How much water can Lake O' the Cherokees at Langley, OK hold?
Lake O' the Cherokees at Langley, OK has a total capacity of 2,011 hm³.
Where is Lake O' the Cherokees at Langley, OK reservoir located?
Lake O' the Cherokees at Langley, OK is located in Oklahoma, United States, within the Oklahoma basin (coordinates 36.469°N, 95.041°W).
What is Lake O' the Cherokees at Langley, OK used for?
Lake O' the Cherokees at Langley, OK is used primarily for multiple purposes, and is managed by USGS.