Demographics of Darien town, Connecticut

Darien town, Connecticut had 22,583 people on July 1, 2025, by the Census Bureau’s estimate: +1,126 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Darien town, in four figures

22,583
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 21,936 ±31.; +5.2%
Change since July 2020: +1,126 people.; 40.0 ±1.5
Median age: ACS 2020–⁠2024.; At the edge of the top or bottom interval
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.

Darien town, Connecticut's population grew 5.2% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Darien town, Connecticut'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

Darien town, Connecticut's population grew 5.2% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Darien town, Connecticut'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	21,457	100.0	100.0
2021	21,586	100.6	100.2
2022	22,011	102.6	100.7
2023	22,194	103.4	101.6
2024	22,539	105.0	102.5
2025	22,583	105.2	103.1

Population of Darien town, Connecticut on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	21,457	—
2021	21,586	+129
2022	22,011	+425
2023	22,194	+183
2024	22,539	+345
2025	22,583	+44

Age, 2020–2024

The median age is 40.0 ±1.5: for men 38.0 ±1.8 and for women 41.3 ±2.0. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Darien town by age, ACS 2020–2024
Age	People	Share	Connecticut	United States
Under 5	1,438 ±217	6.6% ±1.0	5.0% ±<0.1	5.6% ±<0.1
5 to 17	5,338 ±485	24.3% ±2.2	15.2% ±0.1	16.3% ±<0.1
18 to 24	1,681 ±374	7.7% ±1.7	9.3% ±0.1	9.1% ±<0.1
25 to 44	4,422 ±443	20.2% ±2.0	25.3% ±0.1	26.9% ±<0.1
45 to 64	6,056 ±466	27.6% ±2.1	26.7% ±0.1	24.8% ±<0.1
65 and over	3,001 ±451	13.7% ±2.1	18.5% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is At the edge of the top or bottom interval, and income per person $152,454 ±$12,934, in 2024 dollars. The median is $95,781 ±$732 in Connecticut and $80,734 ±$166 in the United States.

Households by income

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Households in Darien town by income, ACS 2020–2024
Household income	Households	Share	Connecticut	United States
Under $25,000	494 ±204	6.8% ±2.8	12.9% ±0.3	14.6% ±<0.1
$25,000 to $49,999	323 ±106	4.5% ±1.5	13.7% ±0.3	16.7% ±<0.1
$50,000 to $74,999	334 ±109	4.6% ±1.5	13.3% ±0.3	15.5% ±<0.1
$75,000 to $99,999	222 ±85	3.1% ±1.2	11.9% ±0.3	12.6% ±<0.1
$100,000 to $149,999	528 ±125	7.3% ±1.7	17.7% ±0.3	17.5% ±<0.1
$150,000 to $199,999	517 ±154	7.1% ±2.1	11.3% ±0.2	9.6% ±<0.1
$200,000 or more	4,816 ±260	66.6% ±2.7	19.2% ±0.3	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 Darien town by age, ACS 2020–2024
Age	Below poverty	Rate	Connecticut	United States
All ages	1,263 ±470	5.8% ±2.1	10.0% ±0.2	12.5% ±0.1
Under 18	387 ±174	5.7% ±2.5	13.0% ±0.5	16.1% ±0.1
18 to 59	586 ±275	5.5% ±2.6	9.4% ±0.3	11.6% ±0.1
60 and over	114 to 466	2.6% to 10.3%	8.9% ±0.3	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 Darien town, ACS 2020–2024
Measure	Darien town	Connecticut	United States
Housing units	7,675 ±245	1,541,822 ±276	143,775,355 ±10,234
Occupied	94.3% ±1.4	93.0% ±0.2	89.9% ±0.1
Vacant	5.7% ±2.0	7.0% ±0.2	10.1% ±0.1
Owner occupied	82.4% ±3.1	66.5% ±0.4	65.2% ±0.3
Renter occupied	17.6% ±3.5	33.5% ±0.3	34.8% ±0.1
Median home value	$1,822,400 ±$170,818	$366,900 ±$1,621	$332,700 ±$236
Median gross rent	At the edge of the top or bottom interval	$1,488 ±$10	$1,413 ±$2
Median year built	1956 ±3	1967 ±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 Darien town by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Connecticut	United States
Hispanic or Latino	1,262 ±437	5.8% ±2.0	18.3% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	17,705 ±740	80.7% ±3.4	61.9% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	20 to 192	0.1% to 0.9%	9.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	1,632 ±492	7.4% ±2.2	4.7% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 15	0% to 0.1%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 25	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	46 to 272	0.2% to 1.2%	0.9% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,066 ±314	4.9% ±1.4	4.3% ±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 Darien town by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Connecticut	United States
Born in the state	7,563 ±535	34.5% ±2.4	53.3% ±0.3	57.3% ±<0.1
Born in another state	11,006 ±557	50.2% ±2.5	27.1% ±0.2	26.9% ±<0.1
Born a citizen outside the states	339 to 1,021	1.5% to 4.7%	3.9% ±0.1	1.7% ±<0.1
Born abroad	2,687 ±385	12.2% ±1.8	15.7% ±0.2	14.1% ±<0.1
Naturalized citizens	1,667 ±281	7.6% ±1.3	8.7% ±0.1	7.4% ±<0.1
Not citizens	1,020 ±315	4.6% ±1.4	7.1% ±0.2	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%.

Darien town among the places and towns of Connecticut

53rd of 168 places and towns of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Connecticut page.

Places of Connecticut near Darien town in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Simsbury town	25,066 ±52
North Haven CDP	24,336 ±30
Windham town	23,961 ±33
Watertown town	22,253 ±28
Guilford town	22,108 ±27
Darien town	21,936 ±31
Bloomfield town	21,754 ±40
Rocky Hill town	20,880 ±34
New Canaan town	20,870 ±30
Bethel town	20,796 ±33
Berlin town	20,361 ±54

Rankings this appears in

No. 1 Places by median home value
No. 4 Places by per capita income

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