South Yarmouth, MA Demographics

A map of South Yarmouth's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	8,840	9,358	76.5%	80.0%
Multiracial	876	747	7.6%	6.4%
Black	841	613	7.3%	5.2%
Asian	485	210	4.2%	1.8%
Hispanic	296	476	2.6%	4.1%
Native American/Other	214	299	1.9%	2.6%

South Yarmouth, Massachusetts has an estimated population of 11,552, a slight decrease from the 11,703 recorded in the 2020 Census. The population is 76.5% White, 7.6% Multiracial, 7.3% Black, 4.2% Asian, 2.6% Hispanic, and 1.9% Native American/Other. This demographic dot map shows the population of South Yarmouth, with one dot drawn for each person counted by the Census, color-coded by race.

South Yarmouth has become more racially diverse since the 2020 Census. It is considerably less diverse than Massachusetts overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In South Yarmouth, that probability was 35.1% in 2020 and 40.1% in the most recent ACS estimates.

South Yarmouth is ranked the 85th most populous place in Massachusetts, out of 248 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). South Yarmouth was ranked the 85th most populous place in the 2020 Census.

South Yarmouth's White Population

8,840 residents of South Yarmouth, or 76.5% of the population, identify as White. The share of White residents in South Yarmouth is higher than in Massachusetts overall, where 66.6% of the population is White. South Yarmouth ranks 161st statewide in terms of White residents as a share of the population, out of 248 places.

Since the 2020 Census, South Yarmouth's White population has declined by an estimated 5.5%. White residents' share of South Yarmouth's population has decreased from 80.0% to 76.5%.

South Yarmouth is more White than neighboring West Dennis (73.6% White), and West Yarmouth (71.6% White). South Yarmouth is less White than neighboring Yarmouth Port (93% White), South Dennis (91.4% White), and Dennis (90.8% White).

South Yarmouth's Black Population

841 residents of South Yarmouth, or 7.3% of the population, identify as Black. The share of Black residents in South Yarmouth is comparable to the share in Massachusetts overall, where 6.4% of the population is Black. South Yarmouth ranks 37th statewide in terms of Black residents as a share of the population, out of 248 places.

Since the 2020 Census, South Yarmouth's Black population has grown by an estimated 37.2%. Black residents' share of South Yarmouth's population has increased from 5.2% to 7.3%.

South Yarmouth is more Black than neighboring West Dennis (2.2% Black), Yarmouth Port (0.3% Black), South Dennis (4.7% Black), and Dennis (0% Black). South Yarmouth is less Black than neighboring West Yarmouth (10.3% Black).

South Yarmouth's Asian Population

485 residents of South Yarmouth, or 4.2% of the population, identify as Asian. The share of Asian residents in South Yarmouth is slightly lower than in Massachusetts overall, where 7.3% of the population is Asian. South Yarmouth ranks 116th statewide in terms of Asian residents as a share of the population, out of 248 places.

Since the 2020 Census, South Yarmouth's Asian population has grown by an estimated 131.0%. Asian residents' share of South Yarmouth's population has increased from 1.8% to 4.2%.

South Yarmouth is more Asian than neighboring West Dennis (0% Asian), Yarmouth Port (0.6% Asian), West Yarmouth (0.4% Asian), South Dennis (0.5% Asian), and Dennis (0% Asian).

South Yarmouth's Hispanic Population

296 residents of South Yarmouth, or 2.6% of the population, identify as Hispanic. The share of Hispanic residents in South Yarmouth is considerably lower than in Massachusetts overall, where 13.3% of the population is Hispanic. South Yarmouth ranks 125th statewide in terms of Hispanic residents as a share of the population, out of 248 places.

Since the 2020 Census, South Yarmouth's Hispanic population has declined by an estimated 37.8%. Hispanic residents' share of South Yarmouth's population has decreased from 4.1% to 2.6%.

South Yarmouth is more Hispanic than neighboring South Dennis (0.4% Hispanic). South Yarmouth is less Hispanic than neighboring West Dennis (22.8% Hispanic), Yarmouth Port (3.3% Hispanic), West Yarmouth (4.7% Hispanic), and Dennis (8.5% Hispanic).

South Yarmouth's Native American/Other Population

214 residents of South Yarmouth, or 1.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in South Yarmouth is comparable to the share in Massachusetts overall, where 1.3% of the population is Native American/Other. South Yarmouth ranks 22nd statewide in terms of Native American/Other residents as a share of the population, out of 248 places.

Since the 2020 Census, South Yarmouth's Native American/Other population has declined by an estimated 28.4%. Native American/Other residents' share of South Yarmouth's population has decreased from 2.6% to 1.9%.

South Yarmouth is more Native American/Other than neighboring West Dennis (0.6% Native American/Other), Yarmouth Port (0% Native American/Other), and Dennis (0% Native American/Other). South Yarmouth is less Native American/Other than neighboring West Yarmouth (4.1% Native American/Other), and South Dennis (3% Native American/Other).

South Yarmouth's Multiracial Population

876 residents of South Yarmouth, or 7.6% of the population, identify as Multiracial. The share of Multiracial residents in South Yarmouth is slightly higher than in Massachusetts overall, where 5.1% of the population is Multiracial. South Yarmouth ranks 24th statewide in terms of Multiracial residents as a share of the population, out of 248 places.

Since the 2020 Census, South Yarmouth's Multiracial population has grown by an estimated 17.3%. Multiracial residents' share of South Yarmouth's population has increased from 6.4% to 7.6%.

South Yarmouth is more Multiracial than neighboring West Dennis (0.7% Multiracial), Yarmouth Port (2.9% Multiracial), South Dennis (0% Multiracial), and Dennis (0.7% Multiracial). South Yarmouth is less Multiracial than neighboring West Yarmouth (9% 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.