Mount Arlington, New Jersey

Mount Arlington population, 2020 to 2024

Mount Arlington added 81 residents from July 2020 to July 2024, a change of +1.4%. In the latest year it moved by +11. Among 194 New Jersey places of 5,000 or more, that growth ranks 132nd; the median place changed by +1.8%. The median place of 5,000+ in New Jersey has 11,231 people, so Mount Arlington is 53% of it.

Mount Arlington covers 2.14 square miles of land and 0.66 of water, for 2,794 people per square mile of land. The median New Jersey place of 5,000+ has 4,474, so Mount Arlington is less dense than the typical town.

What county Mount Arlington is in

All of Mount Arlington's residents live in Morris County, which had 523,053 residents in 2024. Mount Arlington holds 1.1% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Mount Arlington

2 ZIP Code Tabulation Areas (ZCTAs) overlap Mount Arlington by at least 10% of the ZCTA's or the borough's land: 07850, 07856. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a borough that annexed land after 2020 may reach into ZIP codes not listed here.

Where Mount Arlington is

The Census internal point of Mount Arlington is at 40.920800, -74.640800. Trenton, the capital, is 48.7 miles S in a straight line. The nearest larger place is Hopatcong, NJ (14,750 people), 2.4 miles away. The nearest city of 100,000 or more is Paterson, NJ, 25.0 miles away.

Daylight in Mount Arlington

At 40.92° N, Mount Arlington gets about 15 h 07 min of daylight around the June solstice and 9 h 14 min around the December solstice, a swing of 5 h 53 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Mount Arlington

The eight nearest incorporated places of 1,000+ in New Jersey, measured between internal points. The closest is Hopatcong, 2.4 miles away, with 14,750 people.