Marlborough, NH Demographics

A map of Marlborough's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	997	1,008	95.1%	94.6%
Black	20	4	1.9%	0.4%
Hispanic	17	6	1.6%	0.6%
Multiracial	14	30	1.3%	2.8%
Asian	0	10	0.0%	0.9%
Native American/Other	0	8	0.0%	0.8%

Marlborough, New Hampshire has an estimated population of 1,048, a slight decrease from the 1,066 recorded in the 2020 Census. The population is 95.1% White, 1.9% Black, 1.6% Hispanic, 1.3% Multiracial, 0.0% Asian, 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 considerably less diverse than New Hampshire 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 10.5% in 2020 and 9.4% in the most recent ACS estimates.

Marlborough is ranked the 64th most populous place in New Hampshire, out of 100 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 67th most populous place in the 2020 Census.

Marlborough's White Population

997 residents of Marlborough, or 95.1% of the population, identify as White. The share of White residents in Marlborough is higher than in New Hampshire overall, where 86.9% of the population is White. Marlborough ranks 8th statewide in terms of White residents as a share of the population, out of 100 places.

Since the 2020 Census, Marlborough's White population has declined by an estimated 1.1%. White residents' share of Marlborough's population has increased from 94.6% to 95.1%.

Marlborough is more White than neighboring Keene (91.4% White), Jaffrey (90.9% White), and Winchester (83% White). Marlborough is less White than neighboring Troy (98.8% White), and West Swanzey (99.8% White).

Marlborough's Black Population

20 residents of Marlborough, or 1.9% of the population, identify as Black. The share of Black residents in Marlborough is comparable to the share in New Hampshire overall, where 1.3% of the population is Black. Marlborough ranks 65th statewide in terms of Black residents as a share of the population, out of 100 places.

Since the 2020 Census, Marlborough's Black population has grown by an estimated 400.0%. Black residents' share of Marlborough's population has increased from 0.4% to 1.9%.

Marlborough is more Black than neighboring Troy (0% Black), Keene (1.7% Black), West Swanzey (0% Black), Jaffrey (0.9% Black), and Winchester (0% Black).

Marlborough's Asian Population

0 residents of Marlborough, or 0.0% of the population, identify as Asian. The share of Asian residents in Marlborough is slightly lower than in New Hampshire overall, where 2.6% of the population is Asian. Marlborough ranks 55th statewide in terms of Asian residents as a share of the population, out of 100 places.

Since the 2020 Census, Marlborough's Asian population has declined by an estimated 100.0%. Asian residents' share of Marlborough's population has decreased from 0.9% to 0.0%.

Marlborough is less Asian than neighboring Keene (0.7% Asian), and Jaffrey (1.4% Asian).

Marlborough's Hispanic Population

17 residents of Marlborough, or 1.6% of the population, identify as Hispanic. The share of Hispanic residents in Marlborough is slightly lower than in New Hampshire overall, where 4.7% of the population is Hispanic. Marlborough ranks 96th statewide in terms of Hispanic residents as a share of the population, out of 100 places.

Since the 2020 Census, Marlborough's Hispanic population has grown by an estimated 183.3%. Hispanic residents' share of Marlborough's population has increased from 0.6% to 1.6%.

Marlborough is more Hispanic than neighboring Troy (0.5% Hispanic), and West Swanzey (0% Hispanic). Marlborough is less Hispanic than neighboring Keene (1.9% Hispanic), and Winchester (4.8% 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 New Hampshire overall, where 0.5% of the population is Native American/Other. Marlborough ranks 27th statewide in terms of Native American/Other residents as a share of the population, out of 100 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 0.8% to 0.0%.

Marlborough is less Native American/Other than neighboring Keene (0.4% Native American/Other), and Winchester (1.2% Native American/Other).

Marlborough's Multiracial Population

14 residents of Marlborough, or 1.3% of the population, identify as Multiracial. The share of Multiracial residents in Marlborough is slightly lower than in New Hampshire overall, where 4% of the population is Multiracial. Marlborough ranks 85th statewide in terms of Multiracial residents as a share of the population, out of 100 places.

Since the 2020 Census, Marlborough's Multiracial population has declined by an estimated 53.3%. Multiracial residents' share of Marlborough's population has decreased from 2.8% to 1.3%.

Marlborough is more Multiracial than neighboring Troy (0.7% Multiracial), and West Swanzey (0.2% Multiracial). Marlborough is less Multiracial than neighboring Keene (4% Multiracial), Jaffrey (5.2% Multiracial), and Winchester (10.9% 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.