Reservoir · California · United States · CDEC
FOLSOM LAKE
97.2% full
Capacity
1,205.06 hm³
Volume stored
1171 hm³
Coordinates
38.683°N, 121.183°W
Last updated
2026-06-11
Current fill
97.2%vs 7 days ago
0.0%stable
vs 1 year ago
+4.4%year-over-year
7-day trend
→stable
Data source: CDEC — California Dept of Water Resources — 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: 2026-06-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.683, -121.183 · Open in Google Maps
About FOLSOM LAKE
As of June 11, 2026, FOLSOM LAKE is filled to 97.2% of its total capacity, holding roughly 1,171 hm³ of water out of a maximum 1,205 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 4.4 points above its level on the same date a year earlier.
Across the readings we hold for FOLSOM LAKE — 1825 data points between June 13, 2021 and June 11, 2026 — the level has ranged from a low of 21.9% (October 21, 2021) to a high of 98.2% (May 12, 2026). On average the reservoir is fullest around May and at its lowest around November.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 38.683°N, 121.183°W.
Key facts
- Current fill level
- 97.2%
- Water stored
- 1,171 hm³
- Total capacity
- 1,205 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 4.4 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 38.683°N, 121.183°W
- Last updated
- June 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Jun 2026 | 97.2% | 1,171 |
| 10 Jun 2026 | 97.2% | 1,172 |
| 9 Jun 2026 | 97.3% | 1,173 |
| 8 Jun 2026 | 97.3% | 1,172 |
| 7 Jun 2026 | 97.3% | 1,172 |
| 6 Jun 2026 | 97.3% | 1,172 |
| 5 Jun 2026 | 97.1% | 1,171 |
| 4 Jun 2026 | 97.1% | 1,170 |
| 3 Jun 2026 | 97.0% | 1,169 |
| 2 Jun 2026 | 97.0% | 1,169 |
| 1 Jun 2026 | 97.0% | 1,169 |
| 31 May 2026 | 97.1% | 1,171 |
Frequently asked questions
What is the current water level of FOLSOM LAKE?
As of June 11, 2026, FOLSOM LAKE is at 97.2% of its capacity, holding approximately 1,171 hm³ of water, according to CDEC (CA DWR) data.
Is FOLSOM LAKE reservoir full?
FOLSOM LAKE is essentially full, sitting at 97.2% of capacity as of June 11, 2026.
Is the water level at FOLSOM LAKE rising or falling?
The level at FOLSOM LAKE has been broadly stable over the latest week on record (0.0 points).
How much water can FOLSOM LAKE hold?
FOLSOM LAKE has a total capacity of 1,205 hm³.
Where is FOLSOM LAKE reservoir located?
FOLSOM LAKE is located in California, United States, within the California basin (coordinates 38.683°N, 121.183°W).
What is FOLSOM LAKE used for?
FOLSOM LAKE is used primarily for multiple purposes, and is managed by CDEC.