Marlborough, MO Demographics

A map of Marlborough's Population by Race

Marlborough, Missouri has an estimated population of 2,157, a slight decrease from the 2,221 recorded in the 2020 Census. The population is 72.9% White, 11.2% Black, 9.1% Hispanic, 3.4% Asian, 3.3% Multiracial, and 0.0% Native American/Other. This demographic dot map shows the population of Marlborough, with one dot drawn for each person counted by the Census, color-coded by race.

Marlborough has become less racially diverse since the 2020 Census. It is more diverse than Missouri overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Marlborough, that probability was 46.1% in 2020 and 44.5% in the most recent ACS estimates.

Marlborough is ranked the 260th most populous place in Missouri, out of 1,082 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). Marlborough was ranked the 241st most populous place in the 2020 Census.

Marlborough's White Population

1,573 residents of Marlborough, or 72.9% of the population, identify as White. The share of White residents in Marlborough is slightly lower than in Missouri overall, where 76.3% of the population is White. Marlborough ranks 963rd statewide in terms of White residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Marlborough's White population has declined by an estimated 1.3%. White residents' share of Marlborough's population has increased from 71.8% to 72.9%.

Marlborough is less White than neighboring Shrewsbury (78.2% White), Grantwood Village (96.1% White), Affton (81.3% White), Webster Groves (81.1% White), and Lakeshire (84.7% White).

Marlborough's Black Population

241 residents of Marlborough, or 11.2% of the population, identify as Black. The share of Black residents in Marlborough is comparable to the share in Missouri overall, where 10.9% of the population is Black. Marlborough ranks 93rd statewide in terms of Black residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Marlborough's Black population has declined by an estimated 13.6%. Black residents' share of Marlborough's population has decreased from 12.6% to 11.2%.

Marlborough is more Black than neighboring Shrewsbury (9.6% Black), Grantwood Village (0.8% Black), Affton (3% Black), Webster Groves (5.2% Black), and Lakeshire (0.5% Black).

Marlborough's Asian Population

74 residents of Marlborough, or 3.4% of the population, identify as Asian. The share of Asian residents in Marlborough is comparable to the share in Missouri overall, where 2.1% of the population is Asian. Marlborough ranks 27th statewide in terms of Asian residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Marlborough's Asian population has declined by an estimated 30.8%. Asian residents' share of Marlborough's population has decreased from 4.8% to 3.4%.

Marlborough is more Asian than neighboring Grantwood Village (0.4% Asian), Affton (2.1% Asian), Webster Groves (1.8% Asian), and Lakeshire (0.3% Asian). Marlborough is less Asian than neighboring Shrewsbury (4.3% Asian).

Marlborough's Hispanic Population

197 residents of Marlborough, or 9.1% of the population, identify as Hispanic. The share of Hispanic residents in Marlborough is slightly higher than in Missouri overall, where 5.2% of the population is Hispanic. Marlborough ranks 138th statewide in terms of Hispanic residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Marlborough's Hispanic population has grown by an estimated 56.3%. Hispanic residents' share of Marlborough's population has increased from 5.7% to 9.1%.

Marlborough is more Hispanic than neighboring Shrewsbury (2.3% Hispanic), Grantwood Village (0.6% Hispanic), Affton (5.9% Hispanic), Webster Groves (3.3% Hispanic), and Lakeshire (7.4% Hispanic).

Marlborough's Native American/Other Population

0 residents of Marlborough, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Marlborough is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. Marlborough ranks 605th statewide in terms of Native American/Other residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Marlborough's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Marlborough's population has decreased from 0.5% to 0.0%.

Marlborough is less Native American/Other than neighboring Shrewsbury (2.6% Native American/Other), Grantwood Village (0.2% Native American/Other), Affton (0.2% Native American/Other), Webster Groves (0.2% Native American/Other), and Lakeshire (0.4% Native American/Other).

Marlborough's Multiracial Population

72 residents of Marlborough, or 3.3% of the population, identify as Multiracial. The share of Multiracial residents in Marlborough is comparable to the share in Missouri overall, where 4.8% of the population is Multiracial. Marlborough ranks 545th statewide in terms of Multiracial residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Marlborough's Multiracial population has declined by an estimated 30.8%. Multiracial residents' share of Marlborough's population has decreased from 4.7% to 3.3%.

Marlborough is more Multiracial than neighboring Shrewsbury (3.1% Multiracial), and Grantwood Village (2% Multiracial). Marlborough is less Multiracial than neighboring Affton (7.5% Multiracial), Webster Groves (8.4% Multiracial), and Lakeshire (6.8% 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.