Mountain Lake
Census-designated place in Warren County, New Jersey

Mountain Lake is an unincorporated community (census-designated place) in Warren County, New Jersey, with 494 residents (2020 Census). It sits at 400 ft (122 m) above sea level. The nearest town is Buttzville, 2.4 miles SW.
- 494residents (2020 Census)
- 400 ftelevation · 122 m
- 1.1 sq miland area · 2.9 km²
- 439 / sq mipopulation density
- 07844ZIP code
About Mountain Lake
Mountain Lake is an unincorporated community and census-designated place (CDP) located within Liberty Township in Warren County, in the U.S. state of New Jersey, that was created as part of the 2010 United States census. As of the 2020 United States census, the CDP's population was 494 a decrease of 81 (−14.1%) from the 575 recorded at the 2010 census.
Text: Wikipedia · CC BY-SA 4.0
Mountain Lake weather: 7-day forecast
Loading the National Weather Service forecast…
Source: National Weather Service (NOAA).
Live webcams in Mountain Lake
Webcams: Windy.com
Living in Mountain Lake
- Median household income
- $108,056
- Median home value
- $340,000
- Median rent
- $1,808/mo
- Median age
- 55.4
Do you know Mountain Lake? Tell us about it
Help other travelers: share what makes Mountain Lake special. We review every message before publishing it.
Map of Mountain Lake
Tap any street on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Mountain Lake Street View
Drag the image to look around and tap the arrows on the ground to move. If it says there is no imagery, tap a nearby street on the map above.
Open in Google Maps ›Mountain Lake, NJ population
Mountain Lake had 494 residents in the 2020 Census.
| 2020 Census | 494 |
|---|---|
| Density | 439 per sq mi (169 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Mountain Lake at a glance
| State | New Jersey (NJ) |
|---|---|
| County | Warren County |
| Type | Census-designated place |
| Population | 494 (2020) |
| Land area | 1.13 sq mi (2.9 km²) |
| Water area | 0.17 sq mi (0.45 km²) |
| Elevation | 400 ft (122 m) |
| Coordinates | 40.8598° N, 74.9876° W |
| ZIP code | 07844 |
| Census code (GEOID) | 3448450 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Mountain Lake
- Buttzville2.4 mi SW
- Bridgeville2.5 mi SW
- Liberty2.7 mi E
- Hope3.3 mi N
- White3.5 mi SW
- Oxford3.5 mi S
- Mount Hermon4.1 mi N
- Belvidere4.6 mi SW
- Delaware4.8 mi NW
- Great Meadows4.9 mi E
- Brookfield5.3 mi SW
- Silver Lake5.4 mi N
Straight-line distance between town centers.
Frequently asked questions about Mountain Lake
What county is Mountain Lake in?
Mountain Lake is in Warren County, New Jersey.
What is the population of Mountain Lake, NJ?
494 people lived in Mountain Lake at the 2020 Census.
What is the ZIP code of Mountain Lake, NJ?
The ZIP code of Mountain Lake is 07844.
What is the elevation of Mountain Lake?
400 feet (122 m) above sea level.
What towns are near Mountain Lake?
Buttzville (2.4 mi), Bridgeville (2.5 mi), Liberty (2.7 mi), Hope (3.3 mi), White (3.5 mi).
Last updated: