Demographics of Plainville town, Connecticut

Plainville town, Connecticut had 17,746 people on July 1, 2025, by the Census Bureau’s estimate: +289 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Plainville town, in four figures

17,746
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 17,551 ±27.; +1.7%
Change since July 2020: +289 people.; 44.3 ±1.5
Median age: ACS 2020–⁠2024.; $84,343 ±$7,368
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.

Plainville town, Connecticut's population grew 1.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Plainville 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

Plainville town, Connecticut's population grew 1.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Plainville 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	17,457	100.0	100.0
2021	17,475	100.1	100.2
2022	17,478	100.1	100.7
2023	17,574	100.7	101.6
2024	17,688	101.3	102.5
2025	17,746	101.7	103.1

Population of Plainville town, Connecticut on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	17,457	—
2021	17,475	+18
2022	17,478	+3
2023	17,574	+96
2024	17,688	+114
2025	17,746	+58

Age, 2020–2024

The median age is 44.3 ±1.5: for men 42.6 ±2.8 and for women 47.5 ±5.2. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Plainville town by age, ACS 2020–2024
Age	People	Share	Connecticut	United States
Under 5	555 ±195	3.2% ±1.1	5.0% ±<0.1	5.6% ±<0.1
5 to 17	2,179 ±348	12.4% ±2.0	15.2% ±0.1	16.3% ±<0.1
18 to 24	1,494 ±496	8.5% ±2.8	9.3% ±0.1	9.1% ±<0.1
25 to 44	4,877 ±537	27.8% ±3.1	25.3% ±0.1	26.9% ±<0.1
45 to 64	4,926 ±571	28.1% ±3.3	26.7% ±0.1	24.8% ±<0.1
65 and over	3,520 ±490	20.1% ±2.8	18.5% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $84,343 ±$7,368, and income per person $48,359 ±$3,205, 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 Plainville town by income, ACS 2020–2024
Household income	Households	Share	Connecticut	United States
Under $25,000	1,072 ±341	13.3% ±4.2	12.9% ±0.3	14.6% ±<0.1
$25,000 to $49,999	1,355 ±355	16.8% ±4.3	13.7% ±0.3	16.7% ±<0.1
$50,000 to $74,999	1,088 ±275	13.5% ±3.3	13.3% ±0.3	15.5% ±<0.1
$75,000 to $99,999	1,406 ±458	17.4% ±5.6	11.9% ±0.3	12.6% ±<0.1
$100,000 to $149,999	1,522 ±328	18.8% ±3.9	17.7% ±0.3	17.5% ±<0.1
$150,000 to $199,999	761 ±158	9.4% ±1.9	11.3% ±0.2	9.6% ±<0.1
$200,000 or more	883 ±154	10.9% ±1.8	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 Plainville town by age, ACS 2020–2024
Age	Below poverty	Rate	Connecticut	United States
All ages	1,130 ±330	6.5% ±1.9	10.0% ±0.2	12.5% ±0.1
Under 18	111 to 375	4.3% to 13.7%	13.0% ±0.5	16.1% ±0.1
18 to 59	492 ±224	5.0% ±2.2	9.4% ±0.3	11.6% ±0.1
60 and over	395 ±152	8.3% ±3.0	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 Plainville town, ACS 2020–2024
Measure	Plainville town	Connecticut	United States
Housing units	8,588 ±423	1,541,822 ±276	143,775,355 ±10,234
Occupied	94.2% ±1.1	93.0% ±0.2	89.9% ±0.1
Vacant	5.8% ±2.4	7.0% ±0.2	10.1% ±0.1
Owner occupied	67.7% ±4.4	66.5% ±0.4	65.2% ±0.3
Renter occupied	32.3% ±5.6	33.5% ±0.3	34.8% ±0.1
Median home value	$254,000 ±$13,659	$366,900 ±$1,621	$332,700 ±$236
Median gross rent	$1,126 ±$147	$1,488 ±$10	$1,413 ±$2
Median year built	1971 ±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 Plainville town by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Connecticut	United States
Hispanic or Latino	1,942 ±567	11.1% ±3.2	18.3% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	13,691 ±833	78.0% ±4.7	61.9% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	161 to 517	0.9% to 2.9%	9.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	327 to 1,081	1.9% to 6.2%	4.7% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 52	0% to 0.3%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 77	0% to 0.4%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	24 to 236	0.1% to 1.3%	0.9% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	317 to 1,071	1.8% to 6.1%	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 Plainville town by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Connecticut	United States
Born in the state	12,733 ±637	72.5% ±3.6	53.3% ±0.3	57.3% ±<0.1
Born in another state	2,538 ±503	14.5% ±2.9	27.1% ±0.2	26.9% ±<0.1
Born a citizen outside the states	110 to 498	0.6% to 2.8%	3.9% ±0.1	1.7% ±<0.1
Born abroad	1,976 ±404	11.3% ±2.3	15.7% ±0.2	14.1% ±<0.1
Naturalized citizens	1,516 ±365	8.6% ±2.1	8.7% ±0.1	7.4% ±<0.1
Not citizens	460 ±148	2.6% ±0.8	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%.

Plainville town among the places and towns of Connecticut

73rd 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 Plainville town in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Willimantic CDP	18,096 ±642
Montville town	17,950 ±45
Killingly town	17,867 ±21
Brookfield town	17,706 ±50
Madison town	17,616 ±30
Plainville town	17,551 ±27
Seymour town	16,889 ±24
Ellington town	16,455 ±26
Wolcott town	16,279 ±44
Suffield town	15,702 ±24
Colchester town	15,648 ±29

Rankings this appears in

No. 22 Places in Connecticut by median age
No. 25 Places in Connecticut by Hispanic or Latino share
No. 31 Places in Connecticut by poverty rate
No. 36 Places in Connecticut by foreign-born share
No. 82 Places in Connecticut by per capita income
No. 92 Places in Connecticut by median household 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