Compare towns

Killingly vs Plainfield vs Cornwall vs Seymour

Cost, people, housing, commute and schools, side by side, each benchmarked against Connecticut.

What stands out worked out from the figures below

Killingly has the most renters (28.4% rent).
Plainfield has the youngest population (median age 37).
Cornwall has the most people working from home (32.4%).

What matters to you?

Pick a few. We’ll pull those rows to the top and mark which town comes out ahead on each. There’s no overall score: what matters is up to you.

MeasureKillinglyPlainfieldCornwallSeymour
People
Population
17,867Highest
15,141
1,425Lowest
16,889
Median age
39.5±3
4% below CT
37±4.5Lowest
10% below CT
53.9±5.1Highest
31% above CT
41.6±3
about the CT average
Kids under 18
19.8%±2.3Highest
CT: 20.2%
19.4%±2.6
CT: 20.2%
14.9%±2.8Lowest
CT: 20.2%
19.3%±3.9
CT: 20.2%
Killingly and Plainfield are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
19.7%±2.4
CT: 18.5%
16.6%±2.4Lowest
CT: 18.5%
29.4%±2.5Highest
CT: 18.5%
16.8%±2.4
CT: 18.5%
Bachelor’s degree+adults 25+
22.9%
CT: 42.5%
15%Lowest
CT: 42.5%
59.1%Highest
CT: 42.5%
33.3%
CT: 42.5%
Enrolled in collegeshare of residents
5.4%±1.9
CT: 7.1%
5.6%±1.8
CT: 7.1%
4.9%±3Lowest
CT: 7.1%
6.4%±2.1Highest
CT: 7.1%
Seymour and Plainfield are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian
$84,350±$8k
12% below CT
$76,993±$8kLowest
20% below CT
$128,864±$34kHighest
35% above CT
$107,708±$15k
12% above CT
Cornwall and Seymour are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$288,600±$15k
21% below CT
$272,100±$16kLowest
26% below CT
$554,600±$106kHighest
51% above CT
$370,000±$19k
about the CT average
Rentmedian gross, monthly
$1,044±$141Lowest
30% below CT
$1,204±$70
19% below CT
$1,047±$121
30% below CT
$1,608±$86Highest
8% above CT
Property taxmedian, yearly
$3,922Lowest
41% below CT
$4,209
37% below CT
$5,792
13% below CT
$6,635Highest
about the CT average
Renters paying 30%+of income on rent
42.8%±10.9
CT: 52.6%
39.8%±9.5Lowest
CT: 52.6%
46.8%±31.9Highest
CT: 52.6%
45.2%±17.3
CT: 52.6%
Cornwall and Seymour are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
11.4%Highest
CT: 10%
8.7%
CT: 10%
8.2%
CT: 10%
6.7%Lowest
CT: 10%
Housing
Homeownersof occupied homes
71.6%Lowest
CT: 66.5%
73.6%
CT: 66.5%
87.3%Highest
CT: 66.5%
74.2%
CT: 66.5%
Typical home builtmedian year
1968
1 yr newer than CT
1971
4 yrs newer than CT
1959Lowest
8 yrs older than CT
1973Highest
6 yrs newer than CT
Getting to work
Average commuteone way
28 min
5% above CT
27 minLowest
about the CT average
30 min
13% above CT
32 minHighest
21% above CT
Work from home
11.1%±2.3
CT: 16%
10%±4Lowest
CT: 16%
32.4%±13.6Highest
CT: 16%
16.4%±3.5
CT: 16%
Cornwall and Seymour are within the Census margin of error here, so we can’t say which is really higher.
Schools
Public school scoresrank in state, math + reading #136 of 149 in CT #131 of 149 in CT — #105 of 149 in CT
School district Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS Plainfield School District Cornwall School District Seymour School District
High school in town Killingly High School Plainfield High School None in town Seymour High School
Students per teacherat that high school
11.1
10.3Lowest
—
11.8Highest
On TownTapestry
Old photos in History None yet None yet None yet None yet

CT average · Sources: U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024; 2010 & 2020 decennial census; NCES Common Core of Data. “±” is the Census margin of error. Property tax is top-coded by the Census at $10,000+. School rank compares math and reading proficiency against the state average.