Compare towns

Killingly vs Sandy Hook vs Plainfield

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).
Sandy Hook has the most people working from home (23.1%).
Plainfield has the youngest population (median age 37).

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.

MeasureKillinglySandy HookPlainfield
People
Population
17,867Highest
9,863Lowest
15,141
Median age
39.5±3
4% below CT
43.1±3Highest
5% above CT
37±4.5Lowest
10% below CT
Sandy Hook and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18
19.8%±2.3
CT: 20.2%
22.6%±4.1Highest
CT: 20.2%
19.4%±2.6Lowest
CT: 20.2%
Sandy Hook and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
19.7%±2.4Highest
CT: 18.5%
14.4%±2.4Lowest
CT: 18.5%
16.6%±2.4
CT: 18.5%
Killingly and Plainfield are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+
22.9%
CT: 42.5%
60.9%Highest
CT: 42.5%
15%Lowest
CT: 42.5%
Enrolled in collegeshare of residents
5.4%±1.9Lowest
CT: 7.1%
6.2%±2.1Highest
CT: 7.1%
5.6%±1.8
CT: 7.1%
Sandy Hook 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
$160,814±$25kHighest
68% above CT
$76,993±$8kLowest
20% below CT
Home valuemedian, owner-occupied
$288,600±$15k
21% below CT
$501,200±$33kHighest
37% above CT
$272,100±$16kLowest
26% below CT
Rentmedian gross, monthly
$1,044±$141Lowest
30% below CT
$1,866±$439Highest
25% above CT
$1,204±$70
19% below CT
Property taxmedian, yearly
$3,922Lowest
41% below CT
$10,000+Highest
at least 51% above CT
$4,209
37% below CT
Renters paying 30%+of income on rent
42.8%±10.9
CT: 52.6%
52.4%±26.6Highest
CT: 52.6%
39.8%±9.5Lowest
CT: 52.6%
Sandy Hook and Killingly 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%
5.6%Lowest
CT: 10%
8.7%
CT: 10%
Housing
Homeownersof occupied homes
71.6%Lowest
CT: 66.5%
92.9%Highest
CT: 66.5%
73.6%
CT: 66.5%
Typical home builtmedian year
1968Lowest
1 yr newer than CT
1979Highest
12 yrs newer than CT
1971
4 yrs newer than CT
Getting to work
Average commuteone way
28 min
5% above CT
35 minHighest
33% above CT
27 minLowest
about the CT average
Work from home
11.1%±2.3
CT: 16%
23.1%±4.4Highest
CT: 16%
10%±4Lowest
CT: 16%
Schools
Public school scoresrank in state, math + reading #136 of 149 in CT — #131 of 149 in CT
School district Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS — Plainfield School District
High school in town Killingly High School — Plainfield High School
Students per teacherat that high school
11.1Highest
—
10.3Lowest
On TownTapestry
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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.