Reservoir · Oklahoma · United States · USGS NWIS
Stanley Draper Lake
87.5% full
Capacity
123.35 hm³
Volume stored
108 hm³
Coordinates
35.328°N, 97.357°W
Last updated
2026-08-13
Current fill
87.5%vs 7 days ago
-0.8%losing
vs 1 year ago
-9.8%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: 2026-08-13.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 35.328, -97.357 · Open in Google Maps
About Stanley Draper Lake
As of August 13, 2026, Stanley Draper Lake is filled to 87.5% of its total capacity, holding roughly 108 hm³ of water out of a maximum 123 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.8 pts), and it is 9.8 points below its level on the same date a year earlier.
Across the readings we hold for Stanley Draper Lake — 1461 data points between August 14, 2022 and August 13, 2026 — the level has ranged from a low of 72.6% (October 23, 2022) to a high of 101.4% (June 19, 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 35.328°N, 97.357°W.
Key facts
- Current fill level
- 87.5%
- Water stored
- 108 hm³
- Total capacity
- 123 hm³
- 7-day change
- ▼ 0.8 pts
- Year-on-year
- ▼ 9.8 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USGS
- Coordinates
- 35.328°N, 97.357°W
- Last updated
- August 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Aug 2026 | 87.5% | 108 |
| 12 Aug 2026 | 87.7% | 108 |
| 11 Aug 2026 | 87.8% | 108 |
| 10 Aug 2026 | 87.9% | 108 |
| 9 Aug 2026 | 88.0% | 109 |
| 8 Aug 2026 | 88.1% | 109 |
| 7 Aug 2026 | 88.2% | 109 |
| 6 Aug 2026 | 88.3% | 109 |
| 5 Aug 2026 | 88.5% | 109 |
| 4 Aug 2026 | 88.5% | 109 |
| 3 Aug 2026 | 88.7% | 109 |
| 2 Aug 2026 | 88.7% | 109 |
Frequently asked questions
What is the current water level of Stanley Draper Lake?
As of August 13, 2026, Stanley Draper Lake is at 87.5% of its capacity, holding approximately 108 hm³ of water, according to USGS NWIS data.
Is Stanley Draper Lake reservoir full?
No. As of August 13, 2026, Stanley Draper Lake is high at 87.5% of its capacity, so it is not full.
Is the water level at Stanley Draper Lake rising or falling?
The level at Stanley Draper Lake has been broadly stable over the latest week on record (-0.8 points).
How much water can Stanley Draper Lake hold?
Stanley Draper Lake has a total capacity of 123 hm³.
Where is Stanley Draper Lake reservoir located?
Stanley Draper Lake is located in Oklahoma, United States, within the Oklahoma basin (coordinates 35.328°N, 97.357°W).
What is Stanley Draper Lake used for?
Stanley Draper Lake is used primarily for multiple purposes, and is managed by USGS.