Compare towns

Plainville vs Thompson vs Killingly vs Derby

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

What stands out worked out from the figures below

Plainville has the shortest commute (21 min average).
Thompson has the most homeowners (84.3%).
Killingly has the most kids (19.8% under 18).
Derby has the most people working from home (15.1%).

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.

MeasurePlainvilleThompsonKillinglyDerby
People
Population
17,551
9,337Lowest
17,867Highest
12,487
Growth since 20102010 → 2020 census — — —
-4.5%
CT: +0.9%
Median age
44.3±1.5
8% above CT
54.1±2.2Highest
32% above CT
39.5±3Lowest
4% below CT
46.4±3.1
13% above CT
Kids under 18
15.6%±2.3
CT: 20.2%
11.4%±2.8Lowest
CT: 20.2%
19.8%±2.3Highest
CT: 20.2%
14.6%±2.9
CT: 20.2%
Killingly and Plainville are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
20.1%±2.8
CT: 18.5%
24.4%±4.3Highest
CT: 18.5%
19.7%±2.4Lowest
CT: 18.5%
21.1%±3.9
CT: 18.5%
Thompson and Derby are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+
30%
CT: 42.5%
21.9%Lowest
CT: 42.5%
22.9%
CT: 42.5%
35.6%Highest
CT: 42.5%
Enrolled in collegeshare of residents
6.2%±1.6Highest
CT: 7.1%
2.9%±1.3Lowest
CT: 7.1%
5.4%±1.9
CT: 7.1%
5.9%±2
CT: 7.1%
Plainville and Derby are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian
$84,343±$7k
12% below CT
$93,629±$18kHighest
about the CT average
$84,350±$8k
12% below CT
$79,500±$11kLowest
17% below CT
Thompson and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$254,000±$14kLowest
31% below CT
$291,900±$24kHighest
20% below CT
$288,600±$15k
21% below CT
$256,700±$21k
30% below CT
Thompson and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Rentmedian gross, monthly
$1,126±$147
24% below CT
$1,012±$344Lowest
32% below CT
$1,044±$141
30% below CT
$1,452±$95Highest
about the CT average
Property taxmedian, yearly
$4,798
28% below CT
$3,822Lowest
42% below CT
$3,922
41% below CT
$5,510Highest
17% below CT
Renters paying 30%+of income on rent
40.3%±12.4Lowest
CT: 52.6%
54%±18.7Highest
CT: 52.6%
42.8%±10.9
CT: 52.6%
53.9%±12.6
CT: 52.6%
Thompson and Derby are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
6.5%
CT: 10%
5.9%Lowest
CT: 10%
11.4%Highest
CT: 10%
10.8%
CT: 10%
Housing
Homeownersof occupied homes
67.7%
CT: 66.5%
84.3%Highest
CT: 66.5%
71.6%
CT: 66.5%
61.9%Lowest
CT: 66.5%
Typical home builtmedian year
1971Highest
4 yrs newer than CT
1963Lowest
4 yrs older than CT
1968
1 yr newer than CT
1967
same as CT
Getting to work
Average commuteone way
21 minLowest
20% below CT
32 minHighest
20% above CT
28 min
5% above CT
27 min
about the CT average
Work from home
10.7%±2Lowest
CT: 16%
13.1%±4.4
CT: 16%
11.1%±2.3
CT: 16%
15.1%±4.8Highest
CT: 16%
Derby and Thompson 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 #89 of 149 in CT #130 of 149 in CT #136 of 149 in CT #138 of 149 in CT
School district Judicial Centers · Plainville School District Thompson School District Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS Derby School District
High school in town Plainville High School Tourtellotte Memorial High School Killingly High School Derby High School
Students per teacherat that high school
11.4Highest
7.9Lowest
11.1
9.7
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.