Lexington, MA Demographics

A map of Lexington's Population by Race

Lexington, Massachusetts has an estimated population of 34,295, a less than 1% change from the 34,454 recorded in the 2020 Census. The population is 55.2% White, 33.8% Asian, 4.9% Multiracial, 3.5% Hispanic, 1.7% Black, and 0.9% Native American/Other. This demographic dot map shows the population of Lexington, with one dot drawn for each person counted by the Census, color-coded by race.

Lexington has become more racially diverse since the 2020 Census. It is considerably more diverse than Massachusetts overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Lexington, that probability was 56.6% in 2020 and 57.7% in the most recent ACS estimates.

Lexington is ranked the 44th most populous place in Massachusetts, out of 248 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). Lexington was ranked the 44th most populous place in the 2020 Census.

Lexington's White Population

18,939 residents of Lexington, or 55.2% of the population, identify as White. The share of White residents in Lexington is considerably lower than in Massachusetts overall, where 66.6% of the population is White. Lexington ranks 230th statewide in terms of White residents as a share of the population, out of 248 places.

Since the 2020 Census, Lexington's White population has declined by an estimated 3.0%. White residents' share of Lexington's population has decreased from 56.7% to 55.2%.

Lexington is more White than neighboring Hanscom AFB (34.4% White). Lexington is less White than neighboring Waltham (57.6% White), Burlington (74.4% White), Belmont (68.8% White), and Arlington (73.8% White).

Lexington's Black Population

585 residents of Lexington, or 1.7% of the population, identify as Black. The share of Black residents in Lexington is slightly lower than in Massachusetts overall, where 6.4% of the population is Black. Lexington ranks 148th statewide in terms of Black residents as a share of the population, out of 248 places.

Since the 2020 Census, Lexington's Black population has grown by an estimated 27.5%. Black residents' share of Lexington's population has remained roughly unchanged at 1.7%.

Lexington is more Black than neighboring Hanscom AFB (0.2% Black), and Belmont (1.6% Black). Lexington is less Black than neighboring Waltham (8.3% Black), Burlington (1.8% Black), and Arlington (2% Black).

Lexington's Asian Population

11,592 residents of Lexington, or 33.8% of the population, identify as Asian. The share of Asian residents in Lexington is significantly higher than in Massachusetts overall, where 7.3% of the population is Asian. Lexington ranks 1st statewide in terms of Asian residents as a share of the population, out of 248 places.

Since the 2020 Census, Lexington's Asian population has grown by an estimated 1.6%. Asian residents' share of Lexington's population has increased from 33.1% to 33.8%.

Lexington is more Asian than neighboring Hanscom AFB (21.1% Asian), Waltham (12.6% Asian), Burlington (14.5% Asian), Belmont (19.5% Asian), and Arlington (13% Asian).

Lexington's Hispanic Population

1,184 residents of Lexington, or 3.5% of the population, identify as Hispanic. The share of Hispanic residents in Lexington is lower than in Massachusetts overall, where 13.3% of the population is Hispanic. Lexington ranks 151st statewide in terms of Hispanic residents as a share of the population, out of 248 places.

Since the 2020 Census, Lexington's Hispanic population has remained roughly the same. Hispanic residents' share of Lexington's population has remained roughly unchanged at 3.5%.

Lexington is less Hispanic than neighboring Hanscom AFB (37% Hispanic), Waltham (15.9% Hispanic), Burlington (5% Hispanic), Belmont (4.9% Hispanic), and Arlington (4.9% Hispanic).

Lexington's Native American/Other Population

309 residents of Lexington, or 0.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Lexington is comparable to the share in Massachusetts overall, where 1.3% of the population is Native American/Other. Lexington ranks 147th statewide in terms of Native American/Other residents as a share of the population, out of 248 places.

Since the 2020 Census, Lexington's Native American/Other population has grown by an estimated 20.2%. Native American/Other residents' share of Lexington's population has remained roughly unchanged at 0.9%.

Lexington is more Native American/Other than neighboring Burlington (0.2% Native American/Other), and Belmont (0.6% Native American/Other). Lexington is less Native American/Other than neighboring Hanscom AFB (3.5% Native American/Other), and Waltham (1.3% Native American/Other).

Lexington's Multiracial Population

1,686 residents of Lexington, or 4.9% of the population, identify as Multiracial. The share of Multiracial residents in Lexington is comparable to the share in Massachusetts overall, where 5.1% of the population is Multiracial. Lexington ranks 81st statewide in terms of Multiracial residents as a share of the population, out of 248 places.

Since the 2020 Census, Lexington's Multiracial population has grown by an estimated 3.1%. Multiracial residents' share of Lexington's population has remained roughly unchanged at 4.9%.

Lexington is more Multiracial than neighboring Hanscom AFB (3.7% Multiracial), Waltham (4.3% Multiracial), Burlington (4.1% Multiracial), and Belmont (4.5% Multiracial). Lexington is less Multiracial than neighboring Arlington (5.4% 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.