Thomaston, CT Demographics

A map of Thomaston's Population by Race

Thomaston, Connecticut has an estimated population of 1,988, an increase from the 1,928 recorded in the 2020 Census. The population is 70.9% White, 14.9% Multiracial, 6.4% Black, 4.2% Asian, 3.6% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Thomaston, with one dot drawn for each person counted by the Census, color-coded by race.

Thomaston has become considerably more racially diverse since the 2020 Census. It is considerably less diverse than Connecticut overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Thomaston, that probability was 26.3% in 2020 and 46.8% in the most recent ACS estimates.

Thomaston is ranked the 124th most populous place in Connecticut, out of 215 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). Thomaston was ranked the 125th most populous place in the 2020 Census.

Thomaston's White Population

1,409 residents of Thomaston, or 70.9% of the population, identify as White. The share of White residents in Thomaston is higher than in Connecticut overall, where 61.9% of the population is White. Thomaston ranks 76th statewide in terms of White residents as a share of the population, out of 215 places.

Since the 2020 Census, Thomaston's White population has declined by an estimated 14.5%. White residents' share of Thomaston's population has decreased from 85.4% to 70.9%.

Thomaston is more White than neighboring Waterbury (29.3% White). Thomaston is less White than neighboring Terryville (83.6% White), Watertown (80% White), Oakville (80.7% White), and Northwest Harwinton (86.1% White).

Thomaston's Black Population

127 residents of Thomaston, or 6.4% of the population, identify as Black. The share of Black residents in Thomaston is slightly lower than in Connecticut overall, where 9.8% of the population is Black. Thomaston ranks 141st statewide in terms of Black residents as a share of the population, out of 215 places.

Since the 2020 Census, Thomaston's Black population has grown by an estimated 504.8%. Black residents' share of Thomaston's population has increased from 1.1% to 6.4%.

Thomaston is more Black than neighboring Terryville (1.2% Black), Watertown (1.1% Black), Oakville (1.4% Black), and Northwest Harwinton (0% Black). Thomaston is less Black than neighboring Waterbury (23% Black).

Thomaston's Asian Population

84 residents of Thomaston, or 4.2% of the population, identify as Asian. The share of Asian residents in Thomaston is comparable to the share in Connecticut overall, where 4.7% of the population is Asian. Thomaston ranks 162nd statewide in terms of Asian residents as a share of the population, out of 215 places.

Since the 2020 Census, Thomaston's Asian population has grown by an estimated 189.7%. Asian residents' share of Thomaston's population has increased from 1.5% to 4.2%.

Thomaston is more Asian than neighboring Terryville (0% Asian), Oakville (1.3% Asian), Northwest Harwinton (0.1% Asian), and Waterbury (2.5% Asian). Thomaston is less Asian than neighboring Watertown (6.9% Asian).

Thomaston's Hispanic Population

71 residents of Thomaston, or 3.6% of the population, identify as Hispanic. The share of Hispanic residents in Thomaston is considerably lower than in Connecticut overall, where 18.3% of the population is Hispanic. Thomaston ranks 92nd statewide in terms of Hispanic residents as a share of the population, out of 215 places.

Since the 2020 Census, Thomaston's Hispanic population has declined by an estimated 49.6%. Hispanic residents' share of Thomaston's population has decreased from 7.3% to 3.6%.

Thomaston is less Hispanic than neighboring Terryville (12.9% Hispanic), Watertown (6.8% Hispanic), Oakville (14.3% Hispanic), Northwest Harwinton (7.2% Hispanic), and Waterbury (38.5% Hispanic).

Thomaston's Native American/Other Population

0 residents of Thomaston, 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 Thomaston is comparable to the share in Connecticut overall, where 1% of the population is Native American/Other. Thomaston ranks 149th statewide in terms of Native American/Other residents as a share of the population, out of 215 places.

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

Thomaston is less Native American/Other than neighboring Terryville (0.8% Native American/Other), Watertown (1.6% Native American/Other), and Waterbury (1.5% Native American/Other).

Thomaston's Multiracial Population

297 residents of Thomaston, or 14.9% of the population, identify as Multiracial. The share of Multiracial residents in Thomaston is considerably higher than in Connecticut overall, where 4.3% of the population is Multiracial. Thomaston ranks 74th statewide in terms of Multiracial residents as a share of the population, out of 215 places.

Since the 2020 Census, Thomaston's Multiracial population has grown by an estimated 266.7%. Multiracial residents' share of Thomaston's population has increased from 4.2% to 14.9%.

Thomaston is more Multiracial than neighboring Terryville (1.6% Multiracial), Watertown (3.6% Multiracial), Oakville (2.2% Multiracial), Northwest Harwinton (6.5% Multiracial), and Waterbury (5.1% 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.