Greenwich, CT Demographics

A map of Greenwich's Population by Race

Greenwich, Connecticut has an estimated population of 14,792, an increase from the 13,836 recorded in the 2020 Census. The population is 63.4% White, 16.1% Hispanic, 6.3% Native American/Other, 6.1% Asian, 4.4% Black, and 3.7% Multiracial. This demographic dot map shows the population of Greenwich, with one dot drawn for each person counted by the Census, color-coded by race.

Greenwich has become more racially diverse since the 2020 Census. It is slightly 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 Greenwich, that probability was 51.8% in 2020 and 56.1% in the most recent ACS estimates.

Greenwich is ranked the 30th 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). Greenwich was ranked the 31st most populous place in the 2020 Census.

Greenwich's White Population

9,381 residents of Greenwich, or 63.4% of the population, identify as White. The share of White residents in Greenwich is comparable to the share in Connecticut overall, where 61.9% of the population is White. Greenwich ranks 185th statewide in terms of White residents as a share of the population, out of 215 places.

Since the 2020 Census, Greenwich's White population has grown by an estimated 1.6%. White residents' share of Greenwich's population has decreased from 66.7% to 63.4%.

Greenwich is more White than neighboring Byram (51.8% White). Greenwich is less White than neighboring Rock Ridge (64.5% White), Indian Field (91.5% White), Pemberwick (75.9% White), and Glenville (85.2% White).

Greenwich's Black Population

649 residents of Greenwich, or 4.4% of the population, identify as Black. The share of Black residents in Greenwich is lower than in Connecticut overall, where 9.8% of the population is Black. Greenwich ranks 47th statewide in terms of Black residents as a share of the population, out of 215 places.

Since the 2020 Census, Greenwich's Black population has grown by an estimated 21.1%. Black residents' share of Greenwich's population has increased from 3.9% to 4.4%.

Greenwich is more Black than neighboring Rock Ridge (0% Black), Indian Field (0% Black), Pemberwick (0% Black), Byram (0.4% Black), and Glenville (0.2% Black).

Greenwich's Asian Population

906 residents of Greenwich, or 6.1% of the population, identify as Asian. The share of Asian residents in Greenwich is comparable to the share in Connecticut overall, where 4.7% of the population is Asian. Greenwich ranks 22nd statewide in terms of Asian residents as a share of the population, out of 215 places.

Since the 2020 Census, Greenwich's Asian population has declined by an estimated 8.8%. Asian residents' share of Greenwich's population has decreased from 7.2% to 6.1%.

Greenwich is more Asian than neighboring Indian Field (3.1% Asian), Pemberwick (2% Asian), Byram (2.5% Asian), and Glenville (3.2% Asian). Greenwich is less Asian than neighboring Rock Ridge (17.4% Asian).

Greenwich's Hispanic Population

2,379 residents of Greenwich, or 16.1% of the population, identify as Hispanic. The share of Hispanic residents in Greenwich is slightly lower than in Connecticut overall, where 18.3% of the population is Hispanic. Greenwich ranks 27th statewide in terms of Hispanic residents as a share of the population, out of 215 places.

Since the 2020 Census, Greenwich's Hispanic population has grown by an estimated 2.9%. Hispanic residents' share of Greenwich's population has decreased from 16.7% to 16.1%.

Greenwich is more Hispanic than neighboring Indian Field (1.8% Hispanic), and Glenville (6.7% Hispanic). Greenwich is less Hispanic than neighboring Rock Ridge (16.4% Hispanic), Pemberwick (18.5% Hispanic), and Byram (40.3% Hispanic).

Greenwich's Native American/Other Population

932 residents of Greenwich, or 6.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Greenwich is higher than in Connecticut overall, where 1% of the population is Native American/Other. Greenwich ranks 40th statewide in terms of Native American/Other residents as a share of the population, out of 215 places.

Since the 2020 Census, Greenwich's Native American/Other population has grown by an estimated 580.3%. Native American/Other residents' share of Greenwich's population has increased from 1.0% to 6.3%.

Greenwich is more Native American/Other than neighboring Rock Ridge (0% Native American/Other), Indian Field (0% Native American/Other), Pemberwick (0% Native American/Other), Byram (3.9% Native American/Other), and Glenville (0% Native American/Other).

Greenwich's Multiracial Population

545 residents of Greenwich, or 3.7% of the population, identify as Multiracial. The share of Multiracial residents in Greenwich is comparable to the share in Connecticut overall, where 4.3% of the population is Multiracial. Greenwich ranks 65th statewide in terms of Multiracial residents as a share of the population, out of 215 places.

Since the 2020 Census, Greenwich's Multiracial population has declined by an estimated 12.9%. Multiracial residents' share of Greenwich's population has decreased from 4.5% to 3.7%.

Greenwich is more Multiracial than neighboring Rock Ridge (1.7% Multiracial), Indian Field (3.6% Multiracial), Pemberwick (3.5% Multiracial), and Byram (1.1% Multiracial). Greenwich is less Multiracial than neighboring Glenville (4.6% 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.