Mountainside, NJ Demographics

A map of Mountainside's Population by Race

Mountainside, New Jersey had a population of 7,020 in 2020. It was 78.3% White, 1.9% Black, 6.6% Asian, 9.5% Hispanic, 0.7% Native American/Other, and 2.9% Multiracial. This map presents the population of Mountainside, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Of the 701 places in New Jersey, Mountainside is the 230th most populous. 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).

Mountainside's White Population

5,498 residents of Mountainside identify as White, or 78.3%. This makes the White share of the population of Mountainside considerably larger than the White share of the population of New Jersey (51.9% White). Of the 701 places in New Jersey, Mountainside is ranked #296 in terms of White residents as a share of the population.

Mountainside is more White than neighboring Westfield (76.8% White), Summit (66.1% White), Fanwood (72.1% White), New Providence (69.1% White), and Garwood (77.1% White).

Mountainside's Black Population

134 residents of Mountainside identify as Black, or 1.9%. This makes the Black share of the population of Mountainside slightly less than the Black share of the population of New Jersey (12.4% Black). Of the 701 places in New Jersey, Mountainside is ranked #452 in terms of Black residents as a share of the population.

Mountainside is more Black than neighboring New Providence (1.8% Black), and Garwood (1.5% Black). Mountainside is less Black than neighboring Westfield (2.5% Black), Summit (3.9% Black), and Fanwood (5% Black).

Mountainside's Asian Population

466 residents of Mountainside identify as Asian, or 6.6%. This makes the Asian share of the population of Mountainside roughly similar to the Asian share of the population of New Jersey (10.2% Asian). Of the 701 places in New Jersey, Mountainside is ranked #219 in terms of Asian residents as a share of the population.

Mountainside is more Asian than neighboring Garwood (2.7% Asian). Mountainside is less Asian than neighboring Westfield (8.8% Asian), Summit (10.4% Asian), Fanwood (9.2% Asian), and New Providence (15.9% Asian).

Mountainside's Hispanic Population

667 residents of Mountainside identify as Hispanic, or 9.5%. This makes the Hispanic share of the population of Mountainside less than the Hispanic share of the population of New Jersey (21.6% Hispanic). Of the 701 places in New Jersey, Mountainside is ranked #342 in terms of Hispanic residents as a share of the population.

Mountainside is more Hispanic than neighboring Westfield (7.2% Hispanic), Fanwood (9.4% Hispanic), and New Providence (9.2% Hispanic). Mountainside is less Hispanic than neighboring Summit (14.6% Hispanic), and Garwood (15% Hispanic).

Mountainside's Native American/Other Population

52 residents of Mountainside identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.7%. This makes the Native American/Other share of the population of Mountainside roughly similar to the Native American/Other share of the population of New Jersey (0.9% Native American/Other). Of the 701 places in New Jersey, Mountainside is ranked #229 in terms of Native American/Other residents as a share of the population.

Mountainside is more Native American/Other than neighboring Westfield (0.5% Native American/Other), Summit (0.6% Native American/Other), Fanwood (0.2% Native American/Other), and New Providence (0.5% Native American/Other).

Mountainside's Multiracial Population

203 residents of Mountainside identify as Multiracial, or 2.9%. This makes the Multiracial share of the population of Mountainside roughly similar to the Multiracial share of the population of New Jersey (3.1% Multiracial). Of the 701 places in New Jersey, Mountainside is ranked #399 in terms of Multiracial residents as a share of the population.

Mountainside is less Multiracial than neighboring Westfield (4.1% Multiracial), Summit (4.3% Multiracial), Fanwood (4.2% Multiracial), and New Providence (3.6% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.