New Jersey Lake Levels Today
Water levels and distance to full pool for 1 New Jersey lake and reservoirs, updated every day from the US Geological Survey.
Updated Nov 8, 2026 · Source: US Geological Survey
- 1lake tracked
- 0at or above full pool
- 0rising this week
- 0falling this week
All New Jersey lakes
| Lake Hopatcong | 923.49 | 923.5 | −0.01 | −0.01 | 922.07 ft | Nov 8, 7:15 PM EST |
|---|
1 lake · “1 yr ago” is % full when the source gives it, otherwise the level
New Jersey lakes on the map
Lake Hopatcong0.01 ft below full poolView lake
- < 25%
- 25–50%
- 50–75%
- 75–90%
- 90–100%
- Above full pool
- Percent full not published
- No lakes tracked
Neighboring states
Quick answers
What does “percent full” mean for a reservoir?
It is the water stored in the conservation pool divided by the capacity of that pool. Water above full pool is flood storage and does not count, so a lake can be “100% full” and still rising. See Full pool and ft msl.
Where does this data come from?
From US Geological Survey. Each lake page names its gauge and the time of the reading. See Sources.
Where this data comes from
Official gauges: US Geological Survey. Sources
Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.