Pennsylvania Lake Levels Today
19 lakes and reservoirs · updated Sep 21, 2026
Lake Levels Today tracks 19 lakes and reservoirs in Pennsylvania. Of the 19 with a published full pool, 19 are at or above it and 0 are well below it. The highest relative to full pool is F.e. Walter Lake (+54.48 ft) and the lowest is Woodcock Creek Lake (−0.48 ft). Over the last 24 hours 9 rose and 5 fell by more than a twentieth of a foot; the rest held steady.
Every figure is the operating agency's own gauge reading, republished once a day. Open a lake for its staff gauge, a one-year chart, pool elevations and the source link. Elevations are in feet above the agency's vertical datum, so compare lakes by their distance from full pool, not by raw elevation.
| Lake | Elevation (ft) | From full | 24h |
|---|---|---|---|
| Alvin R. Bush Lake | 842.16 | +1.16 ft | −0.15 ft |
| Aylesworth Creek Lake | 1,108.07 | +0.07 ft | −0.04 ft |
| Beltzville Lake | 627.67 | +0.33 ft | +0.08 ft |
| Blue Marsh Lake | 289.62 | +0.35 ft | +0.19 ft |
| Cowanesque Lake | 1,080.47 | +0.47 ft | −0.05 ft |
| Curwensville Lake | 1,162.15 | +0.15 ft | +0.39 ft |
| East Branch Clarion River Lake | 1,655.01 | +4.23 ft | −0.06 ft |
| F.e. Walter Lake | 1,353.86 | +54.48 ft | +1.00 ft |
| Foster Joseph Sayers Lake | 630.19 | +0.19 ft | +0.14 ft |
| George B. Stevenson Lake | 922.06 | +1.06 ft | −0.17 ft |
| Hammond Lake | 1,086.59 | +0.59 ft | −0.05 ft |
| Kinzua Dam & Allegheny Reservoir | 1,328.71 | +1.18 ft | no change |
| Mahoning Creek Lake | 1,103.61 | +6.47 ft | +1.65 ft |
| Prompton Lake | 1,125.69 | +1.32 ft | +1.37 ft |
| Raystown Lake | 786.45 | +0.45 ft | +0.06 ft |
| Shenango River Lake | 895.46 | +0.79 ft | −0.04 ft |
| Tioga Lake | 1,081.31 | +0.31 ft | +0.06 ft |
| Woodcock Creek Lake | 1,179.87 | −0.48 ft | −0.44 ft |
| Youghiogheny River Lake | 1,440.08 | +1.73 ft | −0.20 ft |
Pennsylvania lake level questions
Which Pennsylvania lake is lowest right now?
Woodcock Creek Lake, at 1,179.87 ft, −0.48 ft from its full pool of 1,180.35 ft.
How many Pennsylvania lakes are full?
19 of the 19 Pennsylvania lakes with a published full pool are within half a foot of it or above, and 0 are more than halfway down the conservation pool.
How often are Pennsylvania lake levels updated here?
Once a day. The readings on this page were pulled Sep 21, 2026; each lake page shows the exact timestamp of its gauge reading.