Lake levels › New Jersey

Lake Hopatcong water level today

Higher than usual for this time of year

923.53ft

feet above sea level ·

vs normal for Oct 10+1.2 ft
24 hours±0.00 ft
7 days−0.1 ft
30 days−0.1 ft
vs a year ago+1.3 ft

Is Lake Hopatcong low right now?

Lake Hopatcong was at 923.53 ft on October 10, 2026. That is 1.20 ft above the typical level for October 10 — higher than in 9 of 10 past years. Over the past week the lake has been steady.

Last 12 monthsDaily level Normal range (10–90% of past years)
918920921923924NovDecJanFebMarAprMayJunJulAugSepOct

Lake Hopatcong on Oct 10 in past years

2025922.3+1.2
2024923.1+0.4
2023921.5+2.0
2022922.4+1.2
2021923.7−0.1
2020923.2+0.4

Level on the same date each year, and how today compares.

Daily levels, last two weeks

DateLevel (ft)Change
Oct 10923.52−0.01
Oct 9923.53−0.01
Oct 8923.54−0.01
Oct 7923.55−0.03
Oct 6923.58−0.01
Oct 5923.59−0.02
Oct 4923.61−0.01
Oct 3923.62±0.00
Oct 2923.62−0.01
Oct 1923.63−0.01
Sep 30923.64±0.00
Sep 29923.64±0.00
Sep 28923.64+0.03
Sep 27923.61+0.05

Daily means of the operator's readings (midnight to midnight, local time).

About Lake Hopatcong

10-year range
918.5 ft (December 3, 2023) to 924.3 ft (August 24, 2021)
Data
U.S. Geological Survey — USGS 01455400
Datum
NAVD88 (gage datum 914.5 ft + gage height)

Lakes near Lake Hopatcong

Questions

Is Lake Hopatcong low right now?

Lake Hopatcong was at 923.53 ft on October 10, 2026. That is 1.20 ft above the typical level for October 10 — higher than in 9 of 10 past years. Over the past week the lake has been steady.

How often is the Lake Hopatcong level updated?

The operator reports every 15 minutes to an hour. This page refreshes several times a day; the time of the latest reading is shown next to the level.

Where does this data come from?

U.S. Geological Survey (USGS 01455400). Readings are provisional and can be revised.