Demographics of Southwick town, Massachusetts

Southwick town, Massachusetts had 9,305 people on July 1, 2025, by the Census Bureau’s estimate: +91 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Southwick town, in four figures

9,305
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 9,217 ±33.; +1.0%
Change since July 2020: +91 people.; 46.8 ±1.8
Median age: ACS 2020–⁠2024.; $120,462 ±$16,246
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.

Southwick town, Massachusetts's population grew 1.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Southwick 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

Southwick town, Massachusetts's population grew 1.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Southwick 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	9,214	100.0	100.0
2021	9,207	99.9	100.2
2022	9,193	99.8	100.7
2023	9,217	100.0	101.6
2024	9,264	100.5	102.5
2025	9,305	101.0	103.1

Population of Southwick town, Massachusetts on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	9,214	—
2021	9,207	−7
2022	9,193	−14
2023	9,217	+24
2024	9,264	+47
2025	9,305	+41

Age, 2020–2024

The median age is 46.8 ±1.8: for men 44.8 ±2.8 and for women 47.6 ±2.7. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Southwick town by age, ACS 2020–2024
Age	People	Share	Massachusetts	United States
Under 5	264 ±119	2.9% ±1.3	5.0% ±<0.1	5.6% ±<0.1
5 to 17	1,410 ±254	15.3% ±2.8	14.4% ±0.1	16.3% ±<0.1
18 to 24	659 ±177	7.1% ±1.9	9.8% ±0.1	9.1% ±<0.1
25 to 44	2,030 ±372	22.0% ±4.0	27.1% ±0.1	26.9% ±<0.1
45 to 64	2,918 ±388	31.7% ±4.2	25.9% ±0.1	24.8% ±<0.1
65 and over	1,936 ±314	21.0% ±3.4	17.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $120,462 ±$16,246, and income per person $51,954 ±$4,140, 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 Southwick town by income, ACS 2020–2024
Household income	Households	Share	Massachusetts	United States
Under $25,000	258 ±114	6.8% ±3.0	13.2% ±0.2	14.6% ±<0.1
$25,000 to $49,999	471 ±157	12.3% ±4.1	12.5% ±0.2	16.7% ±<0.1
$50,000 to $74,999	600 ±203	15.7% ±5.3	12.0% ±0.2	15.5% ±<0.1
$75,000 to $99,999	334 ±107	8.8% ±2.8	10.7% ±0.2	12.6% ±<0.1
$100,000 to $149,999	891 ±283	23.4% ±7.4	17.5% ±0.2	17.5% ±<0.1
$150,000 to $199,999	657 ±201	17.2% ±5.2	11.9% ±0.1	9.6% ±<0.1
$200,000 or more	604 ±175	15.8% ±4.5	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 Southwick town by age, ACS 2020–2024
Age	Below poverty	Rate	Massachusetts	United States
All ages	369 ±157	4.0% ±1.7	10.0% ±0.1	12.5% ±0.1
Under 18	0 to 63	0% to 3.8%	11.7% ±0.3	16.1% ±0.1
18 to 59	224 ±109	4.6% ±2.2	9.3% ±0.2	11.6% ±0.1
60 and over	50 to 200	1.9% to 7.4%	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 Southwick town, ACS 2020–2024
Measure	Southwick town	Massachusetts	United States
Housing units	4,188 ±225	3,030,406 ±453	143,775,355 ±10,234
Occupied	91.1% ±6.3	91.9% ±0.2	89.9% ±0.1
Vacant	8.9% ±3.9	8.1% ±0.2	10.1% ±0.1
Owner occupied	83.4% ±6.0	62.5% ±0.3	65.2% ±0.3
Renter occupied	16.6% ±6.0	37.5% ±0.2	34.8% ±0.1
Median home value	$397,500 ±$27,363	$562,100 ±$2,169	$332,700 ±$236
Median gross rent	$1,332 ±$72	$1,762 ±$9	$1,413 ±$2
Median year built	1978 ±5	1964 ±1	1980 ±1

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 Southwick town by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Massachusetts	United States
Hispanic or Latino	85 to 479	0.9% to 5.2%	13.3% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	8,487 ±281	92.1% ±3.0	66.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	3 to 129	< 0.1% to 1.4%	6.4% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 238	0% to 2.6%	7.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 24	0% to 0.3%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 19	0% to 0.2%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 29	0% to 0.3%	1.2% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	115 to 399	1.2% to 4.3%	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 Southwick town by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Massachusetts	United States
Born in the state	5,797 ±501	62.9% ±5.4	58.7% ±0.2	57.3% ±<0.1
Born in another state	2,912 ±505	31.6% ±5.5	20.3% ±0.2	26.9% ±<0.1
Born a citizen outside the states	33 to 203	0.4% to 2.2%	2.9% ±0.1	1.7% ±<0.1
Born abroad	192 to 588	2.1% to 6.4%	18.0% ±0.1	14.1% ±<0.1
Naturalized citizens	316 ±146	3.4% ±1.6	9.7% ±0.1	7.4% ±<0.1
Not citizens	2 to 146	< 0.1% to 1.6%	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%.

Southwick town among the places and towns of Massachusetts

198th 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 Southwick town in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Andover CDP	9,451 ±785
Rutland town	9,353 ±32
Freetown town	9,285 ±27
Salisbury town	9,281 ±18
Blackstone town	9,255 ±21
Southwick town	9,217 ±33
Douglas town	9,207 ±19
Williamstown town	9,150 ±37
Townsend town	9,100 ±19
Millis town	8,888 ±24
Athol CDP	8,801 ±568

Rankings this appears in

No. 12 Places in Massachusetts by homeownership rate
No. 27 Places in Massachusetts by median age
No. 49 Places in Massachusetts by median household income
No. 76 Places in Massachusetts by poverty rate
No. 120 Places in Massachusetts by per capita income
No. 144 Places in Massachusetts by median rent

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