Mount Arlington, NJ Demographics

A map of Mount Arlington's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	4,431	4,478	74.7%	75.8%
Hispanic	857	719	14.4%	12.2%
Black	329	197	5.5%	3.3%
Asian	214	334	3.6%	5.7%
Multiracial	65	153	1.1%	2.6%
Native American/Other	39	28	0.7%	0.5%

Mount Arlington, New Jersey has an estimated population of 5,935, a less than 1% change from the 5,909 recorded in the 2020 Census. The population is 74.7% White, 14.4% Hispanic, 5.5% Black, 3.6% Asian, 1.1% Multiracial, and 0.7% Native American/Other. This demographic dot map shows the population of Mount Arlington, with one dot drawn for each person counted by the Census, color-coded by race.

Mount Arlington has become more 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 Mount Arlington, that probability was 40.6% in 2020 and 41.7% in the most recent ACS estimates.

Mount Arlington is ranked the 264th 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). Mount Arlington was ranked the 261st most populous place in the 2020 Census.

Mount Arlington's White Population

4,431 residents of Mount Arlington, or 74.7% of the population, identify as White. The share of White residents in Mount Arlington is significantly higher than in New Jersey overall, where 50.9% of the population is White. Mount Arlington ranks 346th statewide in terms of White residents as a share of the population, out of 700 places.

Since the 2020 Census, Mount Arlington's White population has declined by an estimated 1.0%. White residents' share of Mount Arlington's population has decreased from 75.8% to 74.7%.

Mount Arlington is more White than neighboring Landing (56.3% White), Hopatcong (68.3% White), and Kenvil (72.3% White). Mount Arlington is less White than neighboring Lower Berkshire Valley (82.6% White), and Port Morris (74.9% White).

Mount Arlington's Black Population

329 residents of Mount Arlington, or 5.5% of the population, identify as Black. The share of Black residents in Mount Arlington is lower than in New Jersey overall, where 12.2% of the population is Black. Mount Arlington ranks 325th statewide in terms of Black residents as a share of the population, out of 700 places.

Since the 2020 Census, Mount Arlington's Black population has grown by an estimated 67.0%. Black residents' share of Mount Arlington's population has increased from 3.3% to 5.5%.

Mount Arlington is more Black than neighboring Hopatcong (1.7% Black), and Port Morris (1.4% Black). Mount Arlington is less Black than neighboring Landing (8% Black), Lower Berkshire Valley (5.8% Black), and Kenvil (7.7% Black).

Mount Arlington's Asian Population

214 residents of Mount Arlington, or 3.6% of the population, identify as Asian. The share of Asian residents in Mount Arlington is lower than in New Jersey overall, where 10% of the population is Asian. Mount Arlington ranks 238th statewide in terms of Asian residents as a share of the population, out of 700 places.

Since the 2020 Census, Mount Arlington's Asian population has declined by an estimated 35.9%. Asian residents' share of Mount Arlington's population has decreased from 5.7% to 3.6%.

Mount Arlington is more Asian than neighboring Lower Berkshire Valley (0% Asian), Hopatcong (2.3% Asian), Kenvil (3% Asian), and Port Morris (1.9% Asian). Mount Arlington is less Asian than neighboring Landing (6.1% Asian).

Mount Arlington's Hispanic Population

857 residents of Mount Arlington, or 14.4% of the population, identify as Hispanic. The share of Hispanic residents in Mount Arlington is lower than in New Jersey overall, where 22.5% of the population is Hispanic. Mount Arlington ranks 254th statewide in terms of Hispanic residents as a share of the population, out of 700 places.

Since the 2020 Census, Mount Arlington's Hispanic population has grown by an estimated 19.2%. Hispanic residents' share of Mount Arlington's population has increased from 12.2% to 14.4%.

Mount Arlington is more Hispanic than neighboring Lower Berkshire Valley (7.8% Hispanic). Mount Arlington is less Hispanic than neighboring Landing (19.6% Hispanic), Hopatcong (23.6% Hispanic), Kenvil (16.7% Hispanic), and Port Morris (20.7% Hispanic).

Mount Arlington's Native American/Other Population

39 residents of Mount Arlington, or 0.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Mount Arlington is comparable to the share in New Jersey overall, where 0.9% of the population is Native American/Other. Mount Arlington ranks 436th statewide in terms of Native American/Other residents as a share of the population, out of 700 places.

Since the 2020 Census, Mount Arlington's Native American/Other population has grown by an estimated 39.3%. Native American/Other residents' share of Mount Arlington's population has remained roughly unchanged at 0.7%.

Mount Arlington is more Native American/Other than neighboring Landing (0% Native American/Other), Lower Berkshire Valley (0% Native American/Other), Kenvil (0% Native American/Other), and Port Morris (0% Native American/Other). Mount Arlington is less Native American/Other than neighboring Hopatcong (1% Native American/Other).

Mount Arlington's Multiracial Population

65 residents of Mount Arlington, or 1.1% of the population, identify as Multiracial. The share of Multiracial residents in Mount Arlington is slightly lower than in New Jersey overall, where 3.5% of the population is Multiracial. Mount Arlington ranks 486th statewide in terms of Multiracial residents as a share of the population, out of 700 places.

Since the 2020 Census, Mount Arlington's Multiracial population has declined by an estimated 57.5%. Multiracial residents' share of Mount Arlington's population has decreased from 2.6% to 1.1%.

Mount Arlington is more Multiracial than neighboring Kenvil (0.4% Multiracial), and Port Morris (1% Multiracial). Mount Arlington is less Multiracial than neighboring Landing (10% Multiracial), Lower Berkshire Valley (3.8% Multiracial), and Hopatcong (3.1% 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.