Cobb Island, MD Demographics

A map of Cobb Island's Population by Race

Cobb Island, Maryland has an estimated population of 916, a slight decrease from the 929 recorded in the 2020 Census. The population is 92.0% White, 5.8% Multiracial, 2.2% Asian, 0.0% Black, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Cobb Island, with one dot drawn for each person counted by the Census, color-coded by race.

Cobb Island has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Maryland overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Cobb Island, that probability was 20.1% in 2020 and 14.9% in the most recent ACS estimates.

Cobb Island is ranked the 343rd most populous place in Maryland, out of 536 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). Cobb Island was ranked the 335th most populous place in the 2020 Census.

Cobb Island's White Population

843 residents of Cobb Island, or 92.0% of the population, identify as White. The share of White residents in Cobb Island is significantly higher than in Maryland overall, where 46.6% of the population is White. Cobb Island ranks 125th statewide in terms of White residents as a share of the population, out of 536 places.

Since the 2020 Census, Cobb Island's White population has grown by an estimated 1.7%. White residents' share of Cobb Island's population has increased from 89.2% to 92.0%.

Cobb Island is more White than neighboring Colonial Beach (72.2% White), Montross (71.7% White), and Dahlgren Center (59.9% White). Cobb Island is less White than neighboring Rock Point (100% White), and Mechanicsville (92.8% White).

Cobb Island's Black Population

0 residents of Cobb Island, or 0.0% of the population, identify as Black. The share of Black residents in Cobb Island is significantly lower than in Maryland overall, where 28.9% of the population is Black. Cobb Island ranks 363rd statewide in terms of Black residents as a share of the population, out of 536 places.

Since the 2020 Census, Cobb Island's Black population has declined by an estimated 100.0%. Black residents' share of Cobb Island's population has decreased from 3.2% to 0.0%.

Cobb Island is less Black than neighboring Colonial Beach (19.5% Black), Montross (9.9% Black), Dahlgren Center (14.1% Black), and Mechanicsville (2.9% Black).

Cobb Island's Asian Population

20 residents of Cobb Island, or 2.2% of the population, identify as Asian. The share of Asian residents in Cobb Island is slightly lower than in Maryland overall, where 6.5% of the population is Asian. Cobb Island ranks 332nd statewide in terms of Asian residents as a share of the population, out of 536 places.

Since the 2020 Census, Cobb Island's Asian population has grown by an estimated 122.2%. Asian residents' share of Cobb Island's population has increased from 1.0% to 2.2%.

Cobb Island is more Asian than neighboring Rock Point (0% Asian), Colonial Beach (1.4% Asian), and Mechanicsville (0% Asian). Cobb Island is less Asian than neighboring Montross (7.5% Asian), and Dahlgren Center (5.2% Asian).

Cobb Island's Hispanic Population

0 residents of Cobb Island, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Cobb Island is considerably lower than in Maryland overall, where 12.5% of the population is Hispanic. Cobb Island ranks 434th statewide in terms of Hispanic residents as a share of the population, out of 536 places.

Since the 2020 Census, Cobb Island's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Cobb Island's population has decreased from 2.0% to 0.0%.

Cobb Island is less Hispanic than neighboring Colonial Beach (1% Hispanic), Montross (9.6% Hispanic), Dahlgren Center (12% Hispanic), and Mechanicsville (3.3% Hispanic).

Cobb Island's Native American/Other Population

0 residents of Cobb Island, 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 Cobb Island is comparable to the share in Maryland overall, where 0.8% of the population is Native American/Other. Cobb Island ranks 398th statewide in terms of Native American/Other residents as a share of the population, out of 536 places.

Since the 2020 Census, Cobb Island's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Cobb Island's population has remained roughly unchanged at 0.0%.

Cobb Island is less Native American/Other than neighboring Colonial Beach (0.4% Native American/Other).

Cobb Island's Multiracial Population

53 residents of Cobb Island, or 5.8% of the population, identify as Multiracial. The share of Multiracial residents in Cobb Island is comparable to the share in Maryland overall, where 4.6% of the population is Multiracial. Cobb Island ranks 295th statewide in terms of Multiracial residents as a share of the population, out of 536 places.

Since the 2020 Census, Cobb Island's Multiracial population has grown by an estimated 39.5%. Multiracial residents' share of Cobb Island's population has increased from 4.1% to 5.8%.

Cobb Island is more Multiracial than neighboring Rock Point (0% Multiracial), Colonial Beach (5.5% Multiracial), Montross (1.3% Multiracial), and Mechanicsville (1% Multiracial). Cobb Island is less Multiracial than neighboring Dahlgren Center (8.8% 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.