Demographics of Groton town, Massachusetts

Groton town, Massachusetts had 11,541 people on July 1, 2025, by the Census Bureau’s estimate: +224 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Groton town, in four figures

11,541
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 11,390 ±37.; +2.0%
Change since July 2020: +224 people.; 41.4 ±2.7
Median age: ACS 2020–⁠2024.; $192,958 ±$27,062
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a town, so the change is the difference between one July estimate and the next.

Groton town, Massachusetts's population grew 2.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Groton town, Massachusetts's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Groton town, Massachusetts's population grew 2.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Groton town, Massachusetts's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	11,317	100.0	100.0
2021	11,235	99.3	100.2
2022	11,308	99.9	100.7
2023	11,408	100.8	101.6
2024	11,496	101.6	102.5
2025	11,541	102.0	103.1

Population of Groton town, Massachusetts on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	11,317	—
2021	11,235	−82
2022	11,308	+73
2023	11,408	+100
2024	11,496	+88
2025	11,541	+45

Age, 2020–2024

The median age is 41.4 ±2.7: for men 40.4 ±4.8 and for women 42.8 ±3.1. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Groton town by age, ACS 2020–2024
Age	People	Share	Massachusetts	United States
Under 5	473 ±178	4.2% ±1.6	5.0% ±<0.1	5.6% ±<0.1
5 to 17	2,749 ±524	24.1% ±4.6	14.4% ±0.1	16.3% ±<0.1
18 to 24	753 ±270	6.6% ±2.4	9.8% ±0.1	9.1% ±<0.1
25 to 44	2,323 ±374	20.4% ±3.3	27.1% ±0.1	26.9% ±<0.1
45 to 64	3,127 ±386	27.5% ±3.4	25.9% ±0.1	24.8% ±<0.1
65 and over	1,965 ±316	17.3% ±2.8	17.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $192,958 ±$27,062, and income per person $79,915 ±$8,357, in 2024 dollars. The median is $103,960 ±$527 in Massachusetts and $80,734 ±$166 in the United States.

Households by income

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Households in Groton town by income, ACS 2020–2024
Household income	Households	Share	Massachusetts	United States
Under $25,000	261 ±100	7.0% ±2.7	13.2% ±0.2	14.6% ±<0.1
$25,000 to $49,999	321 ±120	8.7% ±3.2	12.5% ±0.2	16.7% ±<0.1
$50,000 to $74,999	296 ±117	8.0% ±3.1	12.0% ±0.2	15.5% ±<0.1
$75,000 to $99,999	141 ±62	3.8% ±1.7	10.7% ±0.2	12.6% ±<0.1
$100,000 to $149,999	432 ±124	11.7% ±3.3	17.5% ±0.2	17.5% ±<0.1
$150,000 to $199,999	498 ±161	13.4% ±4.3	11.9% ±0.1	9.6% ±<0.1
$200,000 or more	1,756 ±199	47.4% ±4.6	22.3% ±0.2	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Groton town by age, ACS 2020–2024
Age	Below poverty	Rate	Massachusetts	United States
All ages	426 ±175	3.8% ±1.6	10.0% ±0.1	12.5% ±0.1
Under 18	12 to 132	0.4% to 4.3%	11.7% ±0.3	16.1% ±0.1
18 to 59	87 to 327	1.7% to 6.2%	9.3% ±0.2	11.6% ±0.1
60 and over	147 ±69	5.5% ±2.4	10.4% ±0.2	11.0% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Housing, 2020–2024

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Housing in Groton town, ACS 2020–2024
Measure	Groton town	Massachusetts	United States
Housing units	3,818 ±238	3,030,406 ±453	143,775,355 ±10,234
Occupied	97.0% ±8.3	91.9% ±0.2	89.9% ±0.1
Vacant	0.5% to 5.5%	8.1% ±0.2	10.1% ±0.1
Owner occupied	88.8% ±2.2	62.5% ±0.3	65.2% ±0.3
Renter occupied	11.2% ±2.8	37.5% ±0.2	34.8% ±0.1
Median home value	$743,400 ±$46,491	$562,100 ±$2,169	$332,700 ±$236
Median gross rent	$1,458 ±$335	$1,762 ±$9	$1,413 ±$2
Median year built	1988 ±3	1964 ±1	1980 ±1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Groton town by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Massachusetts	United States
Hispanic or Latino	198 to 856	1.7% to 7.5%	13.3% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	9,336 ±447	82.0% ±3.9	66.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	63 to 335	0.6% to 2.9%	6.4% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	772 ±318	6.8% ±2.8	7.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 21	0% to 0.2%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 21	0% to 0.2%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 96	0% to 0.8%	1.2% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	511 ±203	4.5% ±1.8	5.1% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Groton town by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Massachusetts	United States
Born in the state	5,996 ±412	52.6% ±3.6	58.7% ±0.2	57.3% ±<0.1
Born in another state	3,689 ±361	32.4% ±3.2	20.3% ±0.2	26.9% ±<0.1
Born a citizen outside the states	116 to 382	1.0% to 3.4%	2.9% ±0.1	1.7% ±<0.1
Born abroad	1,456 ±360	12.8% ±3.2	18.0% ±0.1	14.1% ±<0.1
Naturalized citizens	861 ±234	7.6% ±2.1	9.7% ±0.1	7.4% ±<0.1
Not citizens	595 ±237	5.2% ±2.1	8.3% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Groton town among the places and towns of Massachusetts

175th of 291 places and towns of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Massachusetts page.

Places of Massachusetts near Groton town in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Carver town	11,712 ±37
Norfolk town	11,673 ±45
Pepperell town	11,663 ±31
Weston town	11,579 ±21
South Yarmouth CDP	11,552 ±765
Groton town	11,390 ±37
Holbrook CDP	11,380 ±22
Norwell town	11,361 ±30
Leicester town	11,113 ±35
Maynard CDP	10,712 ±23
Hanson town	10,660 ±28

Rankings this appears in

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026