Mountain Lakes, NJ Demographics

A map of Mountain Lakes's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	3,509	3,285	76.5%	73.5%
Asian	612	694	13.3%	15.5%
Multiracial	200	209	4.4%	4.7%
Hispanic	174	247	3.8%	5.5%
Native American/Other	90	18	2.0%	0.4%
Black	0	19	0.0%	0.4%

Mountain Lakes, New Jersey has an estimated population of 4,585, a slight increase from the 4,472 recorded in the 2020 Census. The population is 76.5% White, 13.3% Asian, 4.4% Multiracial, 3.8% Hispanic, 2.0% Native American/Other, and 0.0% Black. This demographic dot map shows the population of Mountain Lakes, with one dot drawn for each person counted by the Census, color-coded by race.

Mountain Lakes has become less racially diverse since the 2020 Census. It is considerably less diverse than New Jersey overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Mountain Lakes, that probability was 43.1% in 2020 and 39.3% in the most recent ACS estimates.

Mountain Lakes is ranked the 316th most populous place in New Jersey, out of 700 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Mountain Lakes was ranked the 317th most populous place in the 2020 Census.

Mountain Lakes's White Population

3,509 residents of Mountain Lakes, or 76.5% of the population, identify as White. The share of White residents in Mountain Lakes is significantly higher than in New Jersey overall, where 50.9% of the population is White. Mountain Lakes ranks 375th statewide in terms of White residents as a share of the population, out of 700 places.

Since the 2020 Census, Mountain Lakes's White population has grown by an estimated 6.8%. White residents' share of Mountain Lakes's population has increased from 73.5% to 76.5%.

Mountain Lakes is more White than neighboring Rainbow Lakes (61.9% White), Parsippany (37% White), Boonton (70.3% White), and Lake Hiawatha (49.1% White). Mountain Lakes is less White than neighboring Mount Tabor (77.2% White).

Mountain Lakes's Black Population

0 residents of Mountain Lakes, or 0.0% of the population, identify as Black. The share of Black residents in Mountain Lakes is considerably lower than in New Jersey overall, where 12.2% of the population is Black. Mountain Lakes ranks 651st statewide in terms of Black residents as a share of the population, out of 700 places.

Since the 2020 Census, Mountain Lakes's Black population has declined by an estimated 100.0%. Black residents' share of Mountain Lakes's population has remained roughly unchanged at 0.0%.

Mountain Lakes is less Black than neighboring Rainbow Lakes (0.7% Black), Parsippany (4.8% Black), Boonton (4.7% Black), Mount Tabor (1.1% Black), and Lake Hiawatha (1.6% Black).

Mountain Lakes's Asian Population

612 residents of Mountain Lakes, or 13.3% of the population, identify as Asian. The share of Asian residents in Mountain Lakes is slightly higher than in New Jersey overall, where 10% of the population is Asian. Mountain Lakes ranks 92nd statewide in terms of Asian residents as a share of the population, out of 700 places.

Since the 2020 Census, Mountain Lakes's Asian population has declined by an estimated 11.8%. Asian residents' share of Mountain Lakes's population has decreased from 15.5% to 13.3%.

Mountain Lakes is more Asian than neighboring Boonton (6.5% Asian), and Mount Tabor (7.2% Asian). Mountain Lakes is less Asian than neighboring Rainbow Lakes (24.1% Asian), Parsippany (45.2% Asian), and Lake Hiawatha (35.4% Asian).

Mountain Lakes's Hispanic Population

174 residents of Mountain Lakes, or 3.8% of the population, identify as Hispanic. The share of Hispanic residents in Mountain Lakes is significantly lower than in New Jersey overall, where 22.5% of the population is Hispanic. Mountain Lakes ranks 551st statewide in terms of Hispanic residents as a share of the population, out of 700 places.

Since the 2020 Census, Mountain Lakes's Hispanic population has declined by an estimated 29.6%. Hispanic residents' share of Mountain Lakes's population has decreased from 5.5% to 3.8%.

Mountain Lakes is more Hispanic than neighboring Mount Tabor (2.4% Hispanic). Mountain Lakes is less Hispanic than neighboring Rainbow Lakes (9.7% Hispanic), Parsippany (10.4% Hispanic), Boonton (12.9% Hispanic), and Lake Hiawatha (10.1% Hispanic).

Mountain Lakes's Native American/Other Population

90 residents of Mountain Lakes, or 2.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Mountain Lakes is comparable to the share in New Jersey overall, where 0.9% of the population is Native American/Other. Mountain Lakes ranks 503rd statewide in terms of Native American/Other residents as a share of the population, out of 700 places.

Since the 2020 Census, Mountain Lakes's Native American/Other population has grown by an estimated 400.0%. Native American/Other residents' share of Mountain Lakes's population has increased from 0.4% to 2.0%.

Mountain Lakes is more Native American/Other than neighboring Rainbow Lakes (0% Native American/Other), Parsippany (0.1% Native American/Other), Boonton (0.5% Native American/Other), Mount Tabor (0% Native American/Other), and Lake Hiawatha (0.5% Native American/Other).

Mountain Lakes's Multiracial Population

200 residents of Mountain Lakes, or 4.4% of the population, identify as Multiracial. The share of Multiracial residents in Mountain Lakes is comparable to the share in New Jersey overall, where 3.5% of the population is Multiracial. Mountain Lakes ranks 91st statewide in terms of Multiracial residents as a share of the population, out of 700 places.

Since the 2020 Census, Mountain Lakes's Multiracial population has declined by an estimated 4.3%. Multiracial residents' share of Mountain Lakes's population has remained roughly unchanged at 4.4%.

Mountain Lakes is more Multiracial than neighboring Rainbow Lakes (3.6% Multiracial), Parsippany (2.5% Multiracial), and Lake Hiawatha (3.3% Multiracial). Mountain Lakes is less Multiracial than neighboring Boonton (5.2% Multiracial), and Mount Tabor (12.2% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.