New Jersey · Census place 3448480

Mountain Lakes, New Jersey

Mountain Lakes is a borough in Morris County, New Jersey with an estimated 4,644 residents on July 1, 2024. It is the 204th largest of 294 incorporated places of 1,000+ people in the state.

Population 2024: 4,644; #204 of 294 in New Jersey
Change since 2020: +4.1%; +182 people
Land area: 2.6 sq mi; + 0.27 sq mi water
Density: 1,759 / sq mi; State median 4,474

Orange pin: Mountain Lakes. Shaded: its county. Dark pin: Trenton.

Measure from here

Tools and pages that start from Mountain Lakes

Mountain Lakes population, 2020 to 2024

Mountain Lakes added 182 residents from July 2020 to July 2024, a change of +4.1%. In the latest year it moved by +8.

July 1 estimates. The April 2020 estimates base was 4,470. The axis starts above zero so yearly changes are visible.

Mountain Lakes covers 2.64 square miles of land and 0.27 of water, for 1,759 people per square mile of land. The median New Jersey place of 5,000+ has 4,474, so Mountain Lakes is less dense than the typical town.

What county Mountain Lakes is in

All of Mountain Lakes's residents live in Morris County, which had 523,053 residents in 2024. Mountain Lakes holds 0.9% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Mountain Lakes

1 ZIP Code Tabulation Area (ZCTA) overlaps Mountain Lakes by at least 10% of the ZCTA's or the borough's land: 07046. 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 Mountain Lakes is

The Census internal point of Mountain Lakes is at 40.890900, -74.442000. Trenton, the capital, is 49.1 miles SSW in a straight line. The nearest larger place is Boonton, NJ (8,894 people), 2.1 miles away. The nearest city of 100,000 or more is Paterson, NJ, 14.7 miles away.

Internal point

Decimal: 40.890900, -74.442000
DMS: 40°53'27.24"N 74°26'31.20"W
UTM: 18N 547006.1E 4526795.9N
Geohash: dr70d5byz
Plus code: 87G7VHR5+96

Daylight in Mountain Lakes

At 40.89° N, Mountain Lakes 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 Mountain Lakes

The eight nearest incorporated places of 1,000+ in New Jersey, measured between internal points. The closest is Boonton, 2.1 miles away, with 8,894 people.

Questions people ask

What is the population of Mountain Lakes, NJ?

4,644 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 182 (4.1%) from 4,462 in July 2020.

What county is Mountain Lakes in?

Morris County. All of its residents live in that county.

What ZIP codes cover Mountain Lakes?

1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 07046.

How far is Mountain Lakes from Trenton?

49.1 miles (79.1 km) in a straight line, heading SSW from Mountain Lakes.

What is the nearest larger city to Mountain Lakes?

Boonton, NJ, with 8,894 residents, 2.1 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

How every number is computed: methodology. Spotted a wrong figure? Report an error.