Mendham, NJ Demographics

A map of Mendham's Population by Race

Mendham, New Jersey has an estimated population of 4,973, a less than 1% change from the 4,981 recorded in the 2020 Census. The population is 79.1% White, 7.0% Multiracial, 6.6% Asian, 6.3% Hispanic, 0.6% Native American/Other, and 0.4% Black. This demographic dot map shows the population of Mendham, with one dot drawn for each person counted by the Census, color-coded by race.

Mendham has become considerably 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 Mendham, that probability was 24.2% in 2020 and 36.1% in the most recent ACS estimates.

Mendham is ranked the 296th 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). Mendham was ranked the 288th most populous place in the 2020 Census.

Mendham's White Population

3,934 residents of Mendham, or 79.1% of the population, identify as White. The share of White residents in Mendham is significantly higher than in New Jersey overall, where 50.9% of the population is White. Mendham ranks 140th statewide in terms of White residents as a share of the population, out of 700 places.

Since the 2020 Census, Mendham's White population has declined by an estimated 9.0%. White residents' share of Mendham's population has decreased from 86.7% to 79.1%.

Mendham is more White than neighboring Basking Ridge (78.6% White). Mendham is less White than neighboring Brookside (86.1% White), Bernardsville (85% White), Peapack and Gladstone (81.3% White), and Far Hills (79.9% White).

Mendham's Black Population

22 residents of Mendham, or 0.4% of the population, identify as Black. The share of Black residents in Mendham is considerably lower than in New Jersey overall, where 12.2% of the population is Black. Mendham ranks 634th statewide in terms of Black residents as a share of the population, out of 700 places.

Since the 2020 Census, Mendham's Black population has declined by an estimated 24.1%. Black residents' share of Mendham's population has remained roughly unchanged at 0.4%.

Mendham is more Black than neighboring Brookside (0% Black), and Basking Ridge (0% Black). Mendham is less Black than neighboring Bernardsville (1.1% Black), Peapack and Gladstone (2.9% Black), and Far Hills (2.3% Black).

Mendham's Asian Population

327 residents of Mendham, or 6.6% of the population, identify as Asian. The share of Asian residents in Mendham is slightly lower than in New Jersey overall, where 10% of the population is Asian. Mendham ranks 354th statewide in terms of Asian residents as a share of the population, out of 700 places.

Since the 2020 Census, Mendham's Asian population has grown by an estimated 103.1%. Asian residents' share of Mendham's population has increased from 3.2% to 6.6%.

Mendham is more Asian than neighboring Brookside (0% Asian), Bernardsville (0.6% Asian), Peapack and Gladstone (3.8% Asian), and Far Hills (4.3% Asian). Mendham is less Asian than neighboring Basking Ridge (11.3% Asian).

Mendham's Hispanic Population

312 residents of Mendham, or 6.3% of the population, identify as Hispanic. The share of Hispanic residents in Mendham is significantly lower than in New Jersey overall, where 22.5% of the population is Hispanic. Mendham ranks 535th statewide in terms of Hispanic residents as a share of the population, out of 700 places.

Since the 2020 Census, Mendham's Hispanic population has grown by an estimated 6.5%. Hispanic residents' share of Mendham's population has remained roughly unchanged at 6.3%.

Mendham is more Hispanic than neighboring Basking Ridge (6.2% Hispanic). Mendham is less Hispanic than neighboring Brookside (13.9% Hispanic), Bernardsville (9.5% Hispanic), Peapack and Gladstone (9.2% Hispanic), and Far Hills (10.4% Hispanic).

Mendham's Native American/Other Population

28 residents of Mendham, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Mendham is comparable to the share in New Jersey overall, where 0.9% of the population is Native American/Other. Mendham ranks 304th statewide in terms of Native American/Other residents as a share of the population, out of 700 places.

Since the 2020 Census, Mendham's Native American/Other population has declined by an estimated 9.7%. Native American/Other residents' share of Mendham's population has remained roughly unchanged at 0.6%.

Mendham is more Native American/Other than neighboring Brookside (0% Native American/Other), Bernardsville (0.2% Native American/Other), Peapack and Gladstone (0% Native American/Other), Basking Ridge (0.1% Native American/Other), and Far Hills (0% Native American/Other).

Mendham's Multiracial Population

350 residents of Mendham, or 7.0% of the population, identify as Multiracial. The share of Multiracial residents in Mendham is slightly higher than in New Jersey overall, where 3.5% of the population is Multiracial. Mendham ranks 406th statewide in terms of Multiracial residents as a share of the population, out of 700 places.

Since the 2020 Census, Mendham's Multiracial population has grown by an estimated 139.7%. Multiracial residents' share of Mendham's population has increased from 2.9% to 7.0%.

Mendham is more Multiracial than neighboring Brookside (0% Multiracial), Bernardsville (3.6% Multiracial), Peapack and Gladstone (2.7% Multiracial), Basking Ridge (3.8% Multiracial), and Far Hills (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.