Lake · New Jersey

Lake Hopatcong

278 m912 ft

Area: 9.73 km²
Tonight: 31°FAreas of frost · Wind 0 mph

Lake Hopatcong is a lake at 278 m above sea level in New Jersey, United States, 9.73 km² in area and 10.5 km long.

All facts

Surface elevation: 278 m
Length: 10.5 km
Shoreline: 61.9 km

Open the 3D view

Lake

Lake Hopatcong in numbers

Shoreline from OpenStreetMap.

Shoreline: 61.9 km

3D map

Lake Hopatcong 3D map

Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 12.5 × 12.5 km

Surface

Vertical scale

Topographic map

Lake Hopatcong terrain and contours

10 m contours from the USGS 3DEP 10 m terrain model. Click two points on the map to draw your own cross-section.Tap two points on the map to draw your own cross-section.

Index contours every 50 mShowing west → east through the centre

Lake Hopatcong elevation profile

West → east through the centre

Hover the profile to read elevation and distance.Tap or drag along the profile to read elevation and distance.

Weather

Lake Hopatcong weather

Tonight · Areas of frost · 31°F (-1°C) · Wind 0 mph

Lake Hopatcong forecast for about 296 m.

Tonight31°–0 mph
Sat33°60°–0 mph
Sun36°63°–0 mph
Mon44°67°–0–5 mph W
Tue37°60°–0–5 mph N
Wed43°58°3%0 mph
Thu47°64°3%0–5 mph SW

Forecast data: NOAA National Weather Service, public domain, model run Oct 23, 22:05 UTC.

Camping & parking

Camping & parking near Lake Hopatcong

Campsites, parking, trailheads and mountain huts mapped in OpenStreetMap around Lake Hopatcong, nearest first, by straight-line distance. Check access, fees and permits locally.

Nearest parking
1.1 km NNE
+2 more within 1.2 km
Directions Map

All mapped places 3

Place	Distance
Parking	1.1 km NNE
Parking	1.2 km W
Parking	1.2 km W

Slope

Share of the 12.5 × 12.5 km view by steepness, from the 10 m model.

Mostly gentle: 88% of the view is under 15°.

Gentle, 0–15°

87.9%

Moderate, 15–30°

11.2%

Steep, 30–45°

0.8%

Cliffs, 45° and over

0.0%

Steeper than 30°: 0.8% of the 156 km² view
Relief in view: 209 m low point 179 m

Land cover

ESA WorldCover 10 m classification of the same area.

Trees 79.6%Water 7.9%Built-up 6.4%Grassland 5.0%Bare rock / sparse 0.6%

Snow & ice means glaciers and year-round snow (a yearly average), not today’s snow cover.

Nearby summits

Named peaks within 6.2 km of Lake Hopatcong.

Summit list 3

1Lookout Mountain355 m 1.8 km W
2Mount Arlington371 m 3.8 km SSE
3Mase Mountain359 m 4.6 km E

Where it sits

Where Lake Hopatcong sits

Nearby

Nearby places

More 1

Lake Sebago50 km ENE

Downloads

Lake Hopatcong downloads: topographic map, heightmap, STL 3D model and DEM

Free files made in your browser from this page's terrain data. No sign-up; credit the sources below.

Print & wall

JPGLake Hopatcong satellite image (JPEG)Sentinel-2 true-colour image of the same area, taken 2026-08-12.

3D printing & 3D apps

GIS & GPS

</>Embed this mapPaste this into your site to show the interactive 3D terrain, with a credit link back here.

<iframe src="https://topolu.com/embed/lake-hopatcong" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Lake Hopatcong"></iframe>
<p><a href="https://topolu.com/lake-hopatcong" rel="nofollow">Topolu</a></p>

Free to use with credit: see the data sources

Sources

Data sources

Terrain: U.S. Geological Survey, 3D Elevation Program (public domain)
Imagery: Contains modified Copernicus Sentinel data 2026 (scene 2026-08-12)
Land cover: © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
Facts: Wikidata (CC0)
Forecast: Weather forecast from NOAA National Weather Service (public domain)
Sources: Wikidata · GeoNames · Wikipedia

Lake Hopatcong

West → east through the centre

Nearest parking