Mount Arlington

Also known as Mount Arlington, New Jersey, Mount Arlington, NJ

borough in New Jersey, United States

Key facts

Country: United States
State: New Jersey
County: Morris
Incorporated: November 3, 1890
Named after: Henry Bennet, 1st Earl of Arlington
Type: Borough
Body: Borough Council
Mayor: Michael Stanzilis ( R ; term ends December 31, 2026)
Administrator: Carolyn Rinaldi
Municipal clerk: Ashley Todd
Total: 2.80 sq mi (7.25 km )
Land: 2.14 sq mi (5.55 km )
Water

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Article

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.