Ayer, MA Demographics

A map of Ayer's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	2,207	2,282	71.2%	76.4%
Hispanic	429	209	13.8%	7.0%
Asian	214	111	6.9%	3.7%
Black	204	142	6.6%	4.8%
Multiracial	44	214	1.4%	7.2%
Native American/Other	0	28	0.0%	0.9%

Ayer, Massachusetts has an estimated population of 3,098, an increase from the 2,986 recorded in the 2020 Census. The population is 71.2% White, 13.8% Hispanic, 6.9% Asian, 6.6% Black, 1.4% Multiracial, and 0.0% Native American/Other. This demographic dot map shows the population of Ayer, with one dot drawn for each person counted by the Census, color-coded by race.

Ayer has become considerably more racially diverse since the 2020 Census. It is considerably 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 Ayer, that probability was 40.2% in 2020 and 46.4% in the most recent ACS estimates.

Ayer is ranked the 155th 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). Ayer was ranked the 157th most populous place in the 2020 Census.

Ayer's White Population

2,207 residents of Ayer, or 71.2% of the population, identify as White. The share of White residents in Ayer is slightly higher than in Massachusetts overall, where 66.6% of the population is White. Ayer ranks 183rd statewide in terms of White residents as a share of the population, out of 248 places.

Since the 2020 Census, Ayer's White population has declined by an estimated 3.3%. White residents' share of Ayer's population has decreased from 76.4% to 71.2%.

Ayer is more White than neighboring Devens (60.5% White). Ayer is less White than neighboring Groton (79.5% White), Shirley (89% White), East Pepperell (86.4% White), and Pepperell (80.3% White).

Ayer's Black Population

204 residents of Ayer, or 6.6% of the population, identify as Black. The share of Black residents in Ayer is comparable to the share in Massachusetts overall, where 6.4% of the population is Black. Ayer ranks 44th statewide in terms of Black residents as a share of the population, out of 248 places.

Since the 2020 Census, Ayer's Black population has grown by an estimated 43.7%. Black residents' share of Ayer's population has increased from 4.8% to 6.6%.

Ayer is more Black than neighboring Groton (2.9% Black), Shirley (3.1% Black), East Pepperell (1.7% Black), and Pepperell (1% Black). Ayer is less Black than neighboring Devens (17.4% Black).

Ayer's Asian Population

214 residents of Ayer, or 6.9% of the population, identify as Asian. The share of Asian residents in Ayer is comparable to the share in Massachusetts overall, where 7.3% of the population is Asian. Ayer ranks 67th statewide in terms of Asian residents as a share of the population, out of 248 places.

Since the 2020 Census, Ayer's Asian population has grown by an estimated 92.8%. Asian residents' share of Ayer's population has increased from 3.7% to 6.9%.

Ayer is more Asian than neighboring Devens (4% Asian), Groton (3.4% Asian), Shirley (0% Asian), and East Pepperell (6.1% Asian). Ayer is less Asian than neighboring Pepperell (9% Asian).

Ayer's Hispanic Population

429 residents of Ayer, or 13.8% of the population, identify as Hispanic. The share of Hispanic residents in Ayer is comparable to the share in Massachusetts overall, where 13.3% of the population is Hispanic. Ayer ranks 62nd statewide in terms of Hispanic residents as a share of the population, out of 248 places.

Since the 2020 Census, Ayer's Hispanic population has grown by an estimated 105.3%. Hispanic residents' share of Ayer's population has increased from 7.0% to 13.8%.

Ayer is more Hispanic than neighboring Groton (5.9% Hispanic), Shirley (7.9% Hispanic), East Pepperell (4.6% Hispanic), and Pepperell (7% Hispanic). Ayer is less Hispanic than neighboring Devens (15% Hispanic).

Ayer's Native American/Other Population

0 residents of Ayer, 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 Ayer is comparable to the share in Massachusetts overall, where 1.3% of the population is Native American/Other. Ayer ranks 105th statewide in terms of Native American/Other residents as a share of the population, out of 248 places.

Since the 2020 Census, Ayer's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Ayer's population has decreased from 0.9% to 0.0%.

Ayer is less Native American/Other than neighboring Devens (2.3% Native American/Other), Groton (2.5% Native American/Other), and Pepperell (0.2% Native American/Other).

Ayer's Multiracial Population

44 residents of Ayer, or 1.4% of the population, identify as Multiracial. The share of Multiracial residents in Ayer is slightly lower than in Massachusetts overall, where 5.1% of the population is Multiracial. Ayer ranks 22nd statewide in terms of Multiracial residents as a share of the population, out of 248 places.

Since the 2020 Census, Ayer's Multiracial population has declined by an estimated 79.4%. Multiracial residents' share of Ayer's population has decreased from 7.2% to 1.4%.

Ayer is more Multiracial than neighboring Devens (0.9% Multiracial), Shirley (0% Multiracial), and East Pepperell (1.3% Multiracial). Ayer is less Multiracial than neighboring Groton (5.7% Multiracial), and Pepperell (2.4% 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.