Cape St. Claire, MD Demographics

A map of Cape St. Claire's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	7,375	7,392	79.9%	80.5%
Multiracial	681	547	7.4%	6.0%
Hispanic	450	571	4.9%	6.2%
Black	379	366	4.1%	4.0%
Asian	331	235	3.6%	2.6%
Native American/Other	20	68	0.2%	0.7%

Cape St. Claire, Maryland has an estimated population of 9,236, a less than 1% change from the 9,179 recorded in the 2020 Census. The population is 79.9% White, 7.4% Multiracial, 4.9% Hispanic, 4.1% Black, 3.6% Asian, and 0.2% Native American/Other. This demographic dot map shows the population of Cape St. Claire, with one dot drawn for each person counted by the Census, color-coded by race.

Cape St. Claire has become slightly more 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 Cape St. Claire, that probability was 34.2% in 2020 and 35.2% in the most recent ACS estimates.

Cape St. Claire is ranked the 149th 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). Cape St. Claire was ranked the 151st most populous place in the 2020 Census.

Cape St. Claire's White Population

7,375 residents of Cape St. Claire, or 79.9% of the population, identify as White. The share of White residents in Cape St. Claire is significantly higher than in Maryland overall, where 46.6% of the population is White. Cape St. Claire ranks 230th statewide in terms of White residents as a share of the population, out of 536 places.

Since the 2020 Census, Cape St. Claire's White population has remained roughly the same. White residents' share of Cape St. Claire's population has decreased from 80.5% to 79.9%.

Cape St. Claire is more White than neighboring Arnold (76.9% White), Naval Academy (56.4% White), Annapolis (57.3% White), and Highland Beach (18.7% White). Cape St. Claire is less White than neighboring Lake Shore (87.6% White).

Cape St. Claire's Black Population

379 residents of Cape St. Claire, or 4.1% of the population, identify as Black. The share of Black residents in Cape St. Claire is significantly lower than in Maryland overall, where 28.9% of the population is Black. Cape St. Claire ranks 338th statewide in terms of Black residents as a share of the population, out of 536 places.

Since the 2020 Census, Cape St. Claire's Black population has grown by an estimated 3.6%. Black residents' share of Cape St. Claire's population has remained roughly unchanged at 4.1%.

Cape St. Claire is more Black than neighboring Arnold (3.8% Black), and Lake Shore (1.6% Black). Cape St. Claire is less Black than neighboring Naval Academy (8.7% Black), Annapolis (20.2% Black), and Highland Beach (57.9% Black).

Cape St. Claire's Asian Population

331 residents of Cape St. Claire, or 3.6% of the population, identify as Asian. The share of Asian residents in Cape St. Claire is slightly lower than in Maryland overall, where 6.5% of the population is Asian. Cape St. Claire ranks 197th statewide in terms of Asian residents as a share of the population, out of 536 places.

Since the 2020 Census, Cape St. Claire's Asian population has grown by an estimated 40.9%. Asian residents' share of Cape St. Claire's population has increased from 2.6% to 3.6%.

Cape St. Claire is more Asian than neighboring Arnold (3.3% Asian), Lake Shore (1.9% Asian), Annapolis (3% Asian), and Highland Beach (0% Asian). Cape St. Claire is less Asian than neighboring Naval Academy (7% Asian).

Cape St. Claire's Hispanic Population

450 residents of Cape St. Claire, or 4.9% of the population, identify as Hispanic. The share of Hispanic residents in Cape St. Claire is lower than in Maryland overall, where 12.5% of the population is Hispanic. Cape St. Claire ranks 227th statewide in terms of Hispanic residents as a share of the population, out of 536 places.

Since the 2020 Census, Cape St. Claire's Hispanic population has declined by an estimated 21.2%. Hispanic residents' share of Cape St. Claire's population has decreased from 6.2% to 4.9%.

Cape St. Claire is more Hispanic than neighboring Lake Shore (3.9% Hispanic), and Highland Beach (0% Hispanic). Cape St. Claire is less Hispanic than neighboring Arnold (9.7% Hispanic), Naval Academy (20.3% Hispanic), and Annapolis (14.8% Hispanic).

Cape St. Claire's Native American/Other Population

20 residents of Cape St. Claire, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Cape St. Claire is comparable to the share in Maryland overall, where 0.8% of the population is Native American/Other. Cape St. Claire ranks 236th statewide in terms of Native American/Other residents as a share of the population, out of 536 places.

Since the 2020 Census, Cape St. Claire's Native American/Other population has declined by an estimated 70.6%. Native American/Other residents' share of Cape St. Claire's population has remained roughly unchanged at 0.2%.

Cape St. Claire is more Native American/Other than neighboring Highland Beach (0% Native American/Other). Cape St. Claire is less Native American/Other than neighboring Arnold (0.6% Native American/Other), Naval Academy (2.5% Native American/Other), Lake Shore (0.9% Native American/Other), and Annapolis (0.7% Native American/Other).

Cape St. Claire's Multiracial Population

681 residents of Cape St. Claire, or 7.4% of the population, identify as Multiracial. The share of Multiracial residents in Cape St. Claire is slightly higher than in Maryland overall, where 4.6% of the population is Multiracial. Cape St. Claire ranks 86th statewide in terms of Multiracial residents as a share of the population, out of 536 places.

Since the 2020 Census, Cape St. Claire's Multiracial population has grown by an estimated 24.5%. Multiracial residents' share of Cape St. Claire's population has increased from 6.0% to 7.4%.

Cape St. Claire is more Multiracial than neighboring Arnold (5.8% Multiracial), Naval Academy (5.1% Multiracial), Lake Shore (4% Multiracial), and Annapolis (3.9% Multiracial). Cape St. Claire is less Multiracial than neighboring Highland Beach (23.4% 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.