Demographics of Columbia town, Connecticut

Columbia town, Connecticut had 5,352 people on July 1, 2025, by the Census Bureau’s estimate: +85 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Columbia town, in four figures

5,352
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 5,300 ±44.; +1.6%
Change since July 2020: +85 people.; 51.3 ±10.3
Median age: ACS 2020–⁠2024.; $127,000 ±$29,672
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.

Columbia town, Connecticut's population grew 1.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Columbia 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

Columbia town, Connecticut's population grew 1.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Columbia 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	5,267	100.0	100.0
2021	5,293	100.5	100.2
2022	5,309	100.8	100.7
2023	5,326	101.1	101.6
2024	5,339	101.4	102.5
2025	5,352	101.6	103.1

Population of Columbia town, Connecticut on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	5,267	—
2021	5,293	+26
2022	5,309	+16
2023	5,326	+17
2024	5,339	+13
2025	5,352	+13

Age, 2020–2024

The median age is 51.3 ±10.3: for men 53.6 ±11.3 and for women 46.3 ±11.7. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Columbia town by age, ACS 2020–2024
Age	People	Share	Connecticut	United States
Under 5	45 to 225	0.8% to 4.2%	5.0% ±<0.1	5.6% ±<0.1
5 to 17	592 ±207	11.2% ±3.9	15.2% ±0.1	16.3% ±<0.1
18 to 24	271 ±129	5.1% ±2.4	9.3% ±0.1	9.1% ±<0.1
25 to 44	1,451 ±292	27.4% ±5.5	25.3% ±0.1	26.9% ±<0.1
45 to 64	1,532 ±427	28.9% ±8.0	26.7% ±0.1	24.8% ±<0.1
65 and over	1,319 ±284	24.9% ±5.4	18.5% ±0.1	17.2% ±<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%.

Income and poverty, 2020–2024

Median household income is $127,000 ±$29,672, and income per person $56,435 ±$7,649, 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 Columbia town by income, ACS 2020–2024
Household income	Households	Share	Connecticut	United States
Under $25,000	7 to 175	0.4% to 8.2%	12.9% ±0.3	14.6% ±<0.1
$25,000 to $49,999	48 to 754	2.4% to 35.6%	13.7% ±0.3	16.7% ±<0.1
$50,000 to $74,999	32 to 170	1.6% to 8.0%	13.3% ±0.3	15.5% ±<0.1
$75,000 to $99,999	39 to 181	1.9% to 8.5%	11.9% ±0.3	12.6% ±<0.1
$100,000 to $149,999	494 ±162	23.4% ±7.2	17.7% ±0.3	17.5% ±<0.1
$150,000 to $199,999	530 ±162	25.1% ±7.2	11.3% ±0.2	9.6% ±<0.1
$200,000 or more	385 ±166	18.2% ±7.6	19.2% ±0.3	13.4% ±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%.

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 Columbia town by age, ACS 2020–2024
Age	Below poverty	Rate	Connecticut	United States
All ages	103 to 543	2.0% to 10.3%	10.0% ±0.2	12.5% ±0.1
Under 18	0 to 33	0% to 4.7%	13.0% ±0.5	16.1% ±0.1
18 to 59	13 to 207	0.5% to 7.4%	9.4% ±0.3	11.6% ±0.1
60 and over	3 to 423	0.4% to 23.3%	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 Columbia town, ACS 2020–2024
Measure	Columbia town	Connecticut	United States
Housing units	2,352 ±267	1,541,822 ±276	143,775,355 ±10,234
Occupied	89.8% ±14.2	93.0% ±0.2	89.9% ±0.1
Vacant	2.9% to 17.6%	7.0% ±0.2	10.1% ±0.1
Owner occupied	83.3% ±6.8	66.5% ±0.4	65.2% ±0.3
Renter occupied	0.4% to 33.0%	33.5% ±0.3	34.8% ±0.1
Median home value	$361,500 ±$16,185	$366,900 ±$1,621	$332,700 ±$236
Median gross rent	$966 ±$304	$1,488 ±$10	$1,413 ±$2
Median year built	1984 ±5	1967 ±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 Columbia town by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Connecticut	United States
Hispanic or Latino	115 to 459	2.2% to 8.7%	18.3% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	4,519 ±284	85.3% ±5.3	61.9% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	6 to 180	0.1% to 3.4%	9.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 19	0% to 0.4%	4.7% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 19	0% to 0.4%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 19	0% to 0.4%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 259	0% to 4.9%	0.9% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	301 ±147	5.7% ±2.8	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 Columbia town by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Connecticut	United States
Born in the state	3,661 ±264	69.1% ±4.9	53.3% ±0.3	57.3% ±<0.1
Born in another state	1,400 ±211	26.4% ±4.0	27.1% ±0.2	26.9% ±<0.1
Born a citizen outside the states	4 to 170	0.1% to 3.2%	3.9% ±0.1	1.7% ±<0.1
Born abroad	44 to 260	0.8% to 4.9%	15.7% ±0.2	14.1% ±<0.1
Naturalized citizens	44 to 260	0.8% to 4.9%	8.7% ±0.1	7.4% ±<0.1
Not citizens	0 to 19	0% to 0.4%	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%.

Columbia town among the places and towns of Connecticut

164th 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 Columbia town in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Pawcatuck CDP	5,577 ±525
Harwinton town	5,575 ±19
Willington town	5,575 ±26
Noroton CDP	5,539 ±611
Terryville CDP	5,461 ±618
Columbia town	5,300 ±44
Bethany town	5,288 ±23
East Granby town	5,238 ±19
North Stonington town	5,160 ±17
Canterbury town	5,124 ±23

Rankings this appears in

No. 1 Places in Connecticut by median age
No. 7 Places in Connecticut by homeownership rate
No. 9 Places in Connecticut by median household income
No. 36 Places in Connecticut by per capita income
No. 61 Places by median age
No. 65 Places in Connecticut by median home value

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