Duck Key, FL Demographics

A map of Duck Key's Population by Race

Duck Key, Florida has an estimated population of 647, a large decrease from the 727 recorded in the 2020 Census. The population is 81.3% White, 10.4% Black, 5.7% Hispanic, 1.4% Asian, 1.2% Multiracial, and 0.0% Native American/Other. This demographic dot map shows the population of Duck Key, with one dot drawn for each person counted by the Census, color-coded by race.

Duck Key has become more racially diverse since the 2020 Census. It is considerably less diverse than Florida overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Duck Key, that probability was 29.8% in 2020 and 32.5% in the most recent ACS estimates.

Duck Key is ranked the 832nd most populous place in Florida, out of 956 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). Duck Key was ranked the 814th most populous place in the 2020 Census.

Duck Key's White Population

526 residents of Duck Key, or 81.3% of the population, identify as White. The share of White residents in Duck Key is significantly higher than in Florida overall, where 50.4% of the population is White. Duck Key ranks 255th statewide in terms of White residents as a share of the population, out of 956 places.

Since the 2020 Census, Duck Key's White population has declined by an estimated 12.8%. White residents' share of Duck Key's population has decreased from 82.9% to 81.3%.

Duck Key is more White than neighboring Marathon (59.5% White), and Islamorada (77.3% White). Duck Key is less White than neighboring Layton (84.7% White), Key Colony Beach (90.6% White), and Big Pine Key (85.7% White).

Duck Key's Black Population

67 residents of Duck Key, or 10.4% of the population, identify as Black. The share of Black residents in Duck Key is slightly lower than in Florida overall, where 14.6% of the population is Black. Duck Key ranks 581st statewide in terms of Black residents as a share of the population, out of 956 places.

Since the 2020 Census, Duck Key's Black population has grown by an estimated 168.0%. Black residents' share of Duck Key's population has increased from 3.4% to 10.4%.

Duck Key is more Black than neighboring Layton (0% Black), Key Colony Beach (0% Black), Marathon (2.1% Black), Islamorada (0.2% Black), and Big Pine Key (0.4% Black).

Duck Key's Asian Population

9 residents of Duck Key, or 1.4% of the population, identify as Asian. The share of Asian residents in Duck Key is comparable to the share in Florida overall, where 2.9% of the population is Asian. Duck Key ranks 743rd statewide in terms of Asian residents as a share of the population, out of 956 places.

Since the 2020 Census, Duck Key's Asian population has grown by an estimated 125.0%. Asian residents' share of Duck Key's population has increased from 0.6% to 1.4%.

Duck Key is more Asian than neighboring Layton (0% Asian), Key Colony Beach (0% Asian), Marathon (0.3% Asian), Islamorada (0.2% Asian), and Big Pine Key (1.2% Asian).

Duck Key's Hispanic Population

37 residents of Duck Key, or 5.7% of the population, identify as Hispanic. The share of Hispanic residents in Duck Key is significantly lower than in Florida overall, where 27.4% of the population is Hispanic. Duck Key ranks 512th statewide in terms of Hispanic residents as a share of the population, out of 956 places.

Since the 2020 Census, Duck Key's Hispanic population has declined by an estimated 53.2%. Hispanic residents' share of Duck Key's population has decreased from 10.9% to 5.7%.

Duck Key is less Hispanic than neighboring Layton (15.3% Hispanic), Key Colony Beach (9.4% Hispanic), Marathon (34.2% Hispanic), Islamorada (17.9% Hispanic), and Big Pine Key (8.2% Hispanic).

Duck Key's Native American/Other Population

0 residents of Duck Key, 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 Duck Key is comparable to the share in Florida overall, where 0.8% of the population is Native American/Other. Duck Key ranks 922nd statewide in terms of Native American/Other residents as a share of the population, out of 956 places.

Since the 2020 Census, Duck Key's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Duck Key's population has remained roughly unchanged at 0.0%.

Duck Key is less Native American/Other than neighboring Marathon (0.2% Native American/Other), and Islamorada (0.1% Native American/Other).

Duck Key's Multiracial Population

8 residents of Duck Key, or 1.2% of the population, identify as Multiracial. The share of Multiracial residents in Duck Key is slightly lower than in Florida overall, where 3.8% of the population is Multiracial. Duck Key ranks 771st statewide in terms of Multiracial residents as a share of the population, out of 956 places.

Since the 2020 Census, Duck Key's Multiracial population has declined by an estimated 50.0%. Multiracial residents' share of Duck Key's population has decreased from 2.2% to 1.2%.

Duck Key is more Multiracial than neighboring Layton (0% Multiracial), and Key Colony Beach (0% Multiracial). Duck Key is less Multiracial than neighboring Marathon (3.6% Multiracial), Islamorada (4.3% Multiracial), and Big Pine Key (4.5% 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.