Mount Arlington
Borough in Morris County, New Jersey

Mount Arlington is a borough in Morris County, New Jersey, with 5,909 residents (2020 Census). It sits at 1,079 ft (329 m) above sea level. The nearest town is Landing, 1.3 miles SW.
- 5,909residents (2020 Census)
- 1,079 ftelevation · 329 m
- 2.1 sq miland area · 5.5 km²
- 2,759 / sq mipopulation density
- 07856main ZIP code (3 in total)
About Mount Arlington
Mount Arlington is a borough in western Morris County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 5,909, an increase of 859 (+17.0%) from the 2010 census count of 5,050, which in turn reflected an increase of 387 (+8.3%) from the 4,663 counted in the 2000 census.
The borough is located on the southeast shore of Lake Hopatcong, New Jersey's largest lake and a major recreational resource. Mount Arlington is home to the Lake Hopatcong Yacht Club.
Text: Wikipedia · CC BY-SA 4.0
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Living in Mount Arlington
- Median household income
- $92,264
- Median home value
- $422,900
- Median rent
- $2,392/mo
- Median age
- 48.1
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Open in Google Maps ›Mount Arlington, NJ population
Mount Arlington had 5,909 residents in the 2020 Census.
| 2020 Census | 5,909 |
|---|---|
| Density | 2,759 per sq mi (1,065 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Mount Arlington at a glance
| State | New Jersey (NJ) |
|---|---|
| County | Morris County |
| Type | Borough |
| Population | 5,909 (2020) |
| Land area | 2.14 sq mi (5.5 km²) |
| Water area | 0.66 sq mi (1.70 km²) |
| Elevation | 1,079 ft (329 m) |
| Coordinates | 40.9208° N, 74.6408° W |
| ZIP codes | 07856, 07843, 07850 |
| Official website | mountarlingtonnj.org |
| Census code (GEOID) | 3448690 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Mount Arlington
- Landing1.3 mi SW
- Lower Berkshire Valley1.5 mi E
- Roxbury2.3 mi S
- Hopatcong2.4 mi NW
- Port Morris2.5 mi SW
- Kenvil2.9 mi SE
- Ledgewood3.0 mi SW
- Lake Hopatcong3.1 mi NE
- Stanhope3.3 mi W
- Netcong3.5 mi SW
- Mine Hill3.6 mi SE
- Byram Center3.8 mi W
Straight-line distance between town centers.
Frequently asked questions about Mount Arlington
What county is Mount Arlington in?
Mount Arlington is in Morris County, New Jersey.
What is the population of Mount Arlington, NJ?
5,909 people lived in Mount Arlington at the 2020 Census.
What is the ZIP code of Mount Arlington, NJ?
The main ZIP code is 07856. Other ZIP codes: 07843, 07850.
What is the elevation of Mount Arlington?
1,079 feet (329 m) above sea level.
What towns are near Mount Arlington?
Landing (1.3 mi), Lower Berkshire Valley (1.5 mi), Roxbury (2.3 mi), Hopatcong (2.4 mi), Port Morris (2.5 mi).
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