Leominster, MA Demographics

A map of Leominster's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	29,867	28,039	68.0%	64.0%
Hispanic	7,027	8,268	16.0%	18.9%
Multiracial	2,792	2,345	6.4%	5.4%
Black	2,135	2,821	4.9%	6.4%
Asian	1,378	1,381	3.1%	3.2%
Native American/Other	710	928	1.6%	2.1%

Leominster, Massachusetts has an estimated population of 43,909, a less than 1% change from the 43,782 recorded in the 2020 Census. The population is 68.0% White, 16.0% Hispanic, 6.4% Multiracial, 4.9% Black, 3.1% Asian, and 1.6% Native American/Other. This demographic dot map shows the population of Leominster, with one dot drawn for each person counted by the Census, color-coded by race.

Leominster has become less racially diverse since the 2020 Census. It is less 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 Leominster, that probability was 54.6% in 2020 and 50.4% in the most recent ACS estimates.

Leominster is ranked the 31st 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). Leominster was ranked the 32nd most populous place in the 2020 Census.

Leominster's White Population

29,867 residents of Leominster, or 68.0% of the population, identify as White. The share of White residents in Leominster is comparable to the share in Massachusetts overall, where 66.6% of the population is White. Leominster ranks 221st statewide in terms of White residents as a share of the population, out of 248 places.

Since the 2020 Census, Leominster's White population has grown by an estimated 6.5%. White residents' share of Leominster's population has increased from 64.0% to 68.0%.

Leominster is more White than neighboring Fitchburg (52.4% White). Leominster is less White than neighboring Lunenburg (80% White), Shirley (89% White), South Lancaster (74.3% White), and Clinton (72.9% White).

Leominster's Black Population

2,135 residents of Leominster, or 4.9% of the population, identify as Black. The share of Black residents in Leominster is comparable to the share in Massachusetts overall, where 6.4% of the population is Black. Leominster ranks 26th statewide in terms of Black residents as a share of the population, out of 248 places.

Since the 2020 Census, Leominster's Black population has declined by an estimated 24.3%. Black residents' share of Leominster's population has decreased from 6.4% to 4.9%.

Leominster is more Black than neighboring Lunenburg (3.6% Black), Shirley (3.1% Black), South Lancaster (1.3% Black), and Clinton (1.1% Black). Leominster is less Black than neighboring Fitchburg (6% Black).

Leominster's Asian Population

1,378 residents of Leominster, or 3.1% of the population, identify as Asian. The share of Asian residents in Leominster is slightly lower than in Massachusetts overall, where 7.3% of the population is Asian. Leominster ranks 73rd statewide in terms of Asian residents as a share of the population, out of 248 places.

Since the 2020 Census, Leominster's Asian population has remained roughly the same. Asian residents' share of Leominster's population has remained roughly unchanged at 3.1%.

Leominster is more Asian than neighboring Fitchburg (2.3% Asian), Shirley (0% Asian), South Lancaster (0% Asian), and Clinton (1.7% Asian). Leominster is less Asian than neighboring Lunenburg (3.6% Asian).

Leominster's Hispanic Population

7,027 residents of Leominster, or 16.0% of the population, identify as Hispanic. The share of Hispanic residents in Leominster is slightly higher than in Massachusetts overall, where 13.3% of the population is Hispanic. Leominster ranks 20th statewide in terms of Hispanic residents as a share of the population, out of 248 places.

Since the 2020 Census, Leominster's Hispanic population has declined by an estimated 15.0%. Hispanic residents' share of Leominster's population has decreased from 18.9% to 16.0%.

Leominster is more Hispanic than neighboring Lunenburg (3.3% Hispanic), and Shirley (7.9% Hispanic). Leominster is less Hispanic than neighboring Fitchburg (33.5% Hispanic), South Lancaster (20.6% Hispanic), and Clinton (20% Hispanic).

Leominster's Native American/Other Population

710 residents of Leominster, or 1.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Leominster is comparable to the share in Massachusetts overall, where 1.3% of the population is Native American/Other. Leominster ranks 30th statewide in terms of Native American/Other residents as a share of the population, out of 248 places.

Since the 2020 Census, Leominster's Native American/Other population has declined by an estimated 23.5%. Native American/Other residents' share of Leominster's population has decreased from 2.1% to 1.6%.

Leominster is more Native American/Other than neighboring Fitchburg (0.5% Native American/Other), Lunenburg (0% Native American/Other), Shirley (0% Native American/Other), South Lancaster (0% Native American/Other), and Clinton (0.7% Native American/Other).

Leominster's Multiracial Population

2,792 residents of Leominster, or 6.4% of the population, identify as Multiracial. The share of Multiracial residents in Leominster is comparable to the share in Massachusetts overall, where 5.1% of the population is Multiracial. Leominster ranks 45th statewide in terms of Multiracial residents as a share of the population, out of 248 places.

Since the 2020 Census, Leominster's Multiracial population has grown by an estimated 19.1%. Multiracial residents' share of Leominster's population has increased from 5.4% to 6.4%.

Leominster is more Multiracial than neighboring Fitchburg (5.4% Multiracial), Shirley (0% Multiracial), South Lancaster (3.8% Multiracial), and Clinton (3.7% Multiracial). Leominster is less Multiracial than neighboring Lunenburg (9.5% 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.