South Yarmouth, Massachusetts Demographics & Population 2026
During the 2020–2024 ACS period, South Yarmouth, Massachusetts had a total population of 11,552, the 85th largest community in Massachusetts, with a median household income of $82,188, which is 21% lower than the state average. The poverty rate is 11.6%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
South Yarmouth Quick Facts
How South Yarmouth Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 11,642 | 11,552 | -0.8% |
| Median household income | $79,638 | $82,188 | +3.2% |
| Median home value | $465,100 | $541,700 | +16.5% |
How South Yarmouth Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 53 | National average: 61
Education
Educational Attainment (Adults 25+)
South Yarmouth Rankings in Massachusetts
Explore Massachusetts Rankings
Other Cities in Barnstable County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Barnstable Town | 49,568 | $91,982 | 7.4% | $602,500 |
| East Falmouth | 6,245 | $81,464 | 8.6% | $593,000 |
| West Yarmouth | 6,194 | $65,841 | 9.1% | $494,600 |
| Yarmouth Port | 5,961 | $110,304 | 7.7% | $604,900 |
| East Harwich | 5,654 | $111,508 | 1.7% | $638,900 |
| Sagamore | 4,072 | $108,315 | 2.5% | $575,700 |
| Falmouth | 3,954 | $68,227 | 21.8% | $837,900 |
| Northwest Harwich | 3,932 | $107,730 | 7.5% | $665,100 |
| East Sandwich | 3,864 | $115,000 | 11.5% | $689,000 |
| Forestdale | 3,801 | $108,158 | 4.5% | $490,200 |
Cities Similar to South Yarmouth
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Palmer Town | 12,381 | $78,480 | $271,400 | 23.5% | 8.3% |
| Webster | 12,228 | $63,837 | $333,100 | 18.8% | 16.0% |
| Holbrook | 11,380 | $115,210 | $465,400 | 34.6% | 7.7% |
| Maynard | 10,712 | $124,067 | $527,400 | 64.2% | 8.3% |
| Hull | 10,138 | $115,485 | $646,000 | 50.4% | 5.8% |
Population Overview
South Yarmouth is a small city located in Massachusetts, within Barnstable County. The total population is 11,552. It ranks as the 85th most populous out of 248 Census-designated places in Massachusetts.
Age Demographics
The median age in South Yarmouth is 52.4 years. This is 31% higher than the state median of 40.0 years. Only 13.5% of residents are under 18, indicating fewer families with children. 15.9% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in South Yarmouth is $82,188. This is 21% lower than the state median of $103,960. It is also 2% higher than the national median of $80,734. The poverty rate stands at 11.6%. This is 16% higher than the state poverty rate of 10.0%. The unemployment rate is 6.1%. This is 19% higher than the state rate of 5.1%. The median home value is $541,700. Housing costs are 4% lower than the state median of $562,100. The home-value-to-income ratio of 6.6x suggests that housing affordability is a significant concern for many residents. 80.2% of occupied housing units are owner-occupied. This homeownership rate is 28% higher than the state average of 62.5%.
Race & Ethnicity
The largest racial or ethnic group in South Yarmouth is White (non-Hispanic), making up 76.5% of the population. Black or African American residents account for 7.3%. The Hispanic or Latino population (2.6%) is well below the state average of 13.3%.
Education
34.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 27% lower than the state rate of 47.3%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.1%.
Data Sources & Methodology
All demographic data for South Yarmouth, Massachusetts is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Massachusetts state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 248 Census-designated places in Massachusetts. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of South Yarmouth, Massachusetts?
South Yarmouth, Massachusetts has a population of 11,552 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in South Yarmouth, MA?
The median household income in South Yarmouth is $82,188, which is 2% higher than the national median of $80,734.
What is the poverty rate in South Yarmouth, MA?
The poverty rate in South Yarmouth is 11.6%. This means approximately 1,316 residents live below the federal poverty line.
What is the racial makeup of South Yarmouth, Massachusetts?
South Yarmouth's population is 76.5% White, 7.3% Black, 2.6% Hispanic/Latino, and 4.2% Asian.
What is the median home value in South Yarmouth, MA?
The median home value in South Yarmouth is $541,700. The home-value-to-income ratio is 6.6x.
How educated is South Yarmouth, Massachusetts?
34.4% of adults (25+) in South Yarmouth hold a bachelor's degree or higher, and 14.4% hold a graduate or professional degree.