Groton, Massachusetts Demographics & Population 2026
During the 2020–2024 ACS period, Groton, Massachusetts had a total population of 1,232, the 219th largest community in Massachusetts, with a median household income of $135,714, which is 31% higher than the state average. The poverty rate is 10.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 31% above the state average — one of the wealthiest communities in Massachusetts.
Groton Quick Facts
How Groton 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 | 1,571 | 1,232 | -21.6% |
| Median home value | $736,800 | $758,500 | +2.9% |
How Groton 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
A less diverse community where one racial or ethnic group represents a large majority.
State average: 53 | National average: 61
Education
Educational Attainment (Adults 25+)
Groton Rankings in Massachusetts
Explore Massachusetts Rankings
Other Cities in Middlesex County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Cambridge | 118,796 | $130,748 | 12.8% | $1,092,100 |
| Lowell | 118,368 | $78,658 | 16.9% | $429,200 |
| Newton | 89,044 | $190,304 | 4.5% | $1,264,900 |
| Somerville | 81,036 | $132,572 | 9.8% | $911,300 |
| Framingham | 72,399 | $107,419 | 10.4% | $627,300 |
| Malden | 65,906 | $100,606 | 11.4% | $633,500 |
| Waltham | 64,902 | $120,216 | 9.4% | $748,700 |
| Medford | 59,354 | $129,540 | 7.6% | $755,500 |
| Everett | 50,045 | $85,218 | 14.7% | $610,000 |
| Arlington | 46,350 | $150,701 | 5.4% | $933,800 |
Cities Similar to Groton
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| West Chatham | 1,258 | N/A | $739,600 | 73.8% | 22.0% |
| Oak Bluffs | 1,184 | N/A | N/A | 35.8% | 3.7% |
| Granby | 1,152 | $135,750 | $340,100 | 50.2% | 7.1% |
| Housatonic | 1,113 | N/A | $437,000 | 52.3% | 16.8% |
| Onset | 1,380 | $137,997 | $408,300 | 28.6% | 4.8% |
Population Overview
Groton is a small community located in Massachusetts, within Middlesex County. The total population is 1,232. It ranks as the 219th most populous out of 248 Census-designated places in Massachusetts.
Age Demographics
The median age in Groton is 44.1 years. This is 10% higher than the state median of 40.0 years.
Economy, Income & Housing
The median household income in Groton is $135,714. This is 31% higher than the state median of $103,960. It is also 68% higher than the national median of $80,734. The poverty rate stands at 10.1%. This is about the same as the state poverty rate of 10.0%. The unemployment rate is 7.2%. This is 40% higher than the state rate of 5.1%. The median home value is $758,500. Housing costs are 35% higher than the state median of $562,100. The home-value-to-income ratio is 5.6x. 74.9% of occupied housing units are owner-occupied. This homeownership rate is 20% higher than the state average of 62.5%.
Race & Ethnicity
The largest racial or ethnic group in Groton is White (non-Hispanic), making up 79.5% of the population. Hispanic or Latino residents account for 5.9%. The Black or African American population (2.9%) is well below the state average of 6.4%. The Hispanic or Latino population (5.9%) is well below the state average of 13.3%. The Asian population (3.4%) is well below the state average of 7.2%.
Education
59.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 27% higher 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 90.4%. Notably, 27.2% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Groton, 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 Groton, Massachusetts?
Groton, Massachusetts has a population of 1,232 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Groton, MA?
The median household income in Groton is $135,714, which is 68% higher than the national median of $80,734.
What is the poverty rate in Groton, MA?
The poverty rate in Groton is 10.1%. This means approximately 107 residents live below the federal poverty line.
What is the racial makeup of Groton, Massachusetts?
Groton's population is 79.5% White, 2.9% Black, 5.9% Hispanic/Latino, and 3.4% Asian.
What is the median home value in Groton, MA?
The median home value in Groton is $758,500. The home-value-to-income ratio is 5.6x.
How educated is Groton, Massachusetts?
59.9% of adults (25+) in Groton hold a bachelor's degree or higher, and 27.2% hold a graduate or professional degree.