Compare towns

Killingly vs Groton vs Devens vs Putnam

Cost, people, housing, commute and schools, side by side, each benchmarked against the U.S..

What stands out worked out from the figures below

Killingly has the youngest population (median age 39.5).
Groton has the most kids (28.3% under 18).
Devens has the oldest population (median age 48.6).
Putnam has the most renters (40.2% rent).

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.

MeasureKillinglyGrotonDevensPutnam
People
Population
17,867Highest
11,390
1,723Lowest
9,292
Growth since 20102010 → 2020 census —
+6.3%Highest
U.S.: +7.4%
-7.8%Lowest
U.S.: +7.4%
—
Median age
39.5±3Lowest
about the U.S. average
41.4±2.7
6% above U.S.
48.6±4.3Highest
25% above U.S.
43.7±3
12% above U.S.
Devens and Putnam are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18
19.8%±2.3
U.S.: 22%
28.3%±4.9Highest
U.S.: 22%
5.5%±3.9Lowest
U.S.: 22%
18.6%±3.6
U.S.: 22%
Age 65+
19.7%±2.4Highest
U.S.: 17.2%
17.3%±2.8
U.S.: 17.2%
14%±5Lowest
U.S.: 17.2%
18.5%±3.1
U.S.: 17.2%
Killingly and Putnam are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+
22.9%
U.S.: 35.7%
70.1%Highest
U.S.: 35.7%
21.9%
U.S.: 35.7%
20%Lowest
U.S.: 35.7%
Enrolled in collegeshare of residents
5.4%±1.9
U.S.: 6.4%
5.6%±1.9Highest
U.S.: 6.4%
5.2%±4.2
U.S.: 6.4%
3.9%±1.4Lowest
U.S.: 6.4%
Groton and Killingly 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
4% above U.S.
$192,958±$27kHighest
139% above U.S.
$189,250±$63k
134% above U.S.
$70,561±$7kLowest
13% below U.S.
Groton and Devens are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$288,600±$15k
13% below U.S.
$743,400±$46kHighest
123% above U.S.
$556,800±$96k
67% above U.S.
$269,200±$11kLowest
19% below U.S.
Rentmedian gross, monthly
$1,044±$141Lowest
26% below U.S.
$1,458±$335
3% above U.S.
$1,500±$539Highest
6% above U.S.
$1,149±$44
19% below U.S.
Devens and Groton are within the Census margin of error here, so we can’t say which is really higher.
Property taxmedian, yearly
$3,922
26% above U.S.
$10,000+Highest
at least 221% above U.S.
$5,556
78% above U.S.
$3,860Lowest
24% above U.S.
Renters paying 30%+of income on rent
42.8%±10.9
U.S.: 51.1%
43.8%±17
U.S.: 51.1%
85.4%±64.7Highest
U.S.: 51.1%
37.7%±11.6Lowest
U.S.: 51.1%
Devens and Groton are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
11.4%
U.S.: 12.5%
3.8%Lowest
U.S.: 12.5%
25.3%Highest
U.S.: 12.5%
11.5%
U.S.: 12.5%
Housing
Homeownersof occupied homes
71.6%
U.S.: 65.2%
88.8%Highest
U.S.: 65.2%
79.3%
U.S.: 65.2%
59.8%Lowest
U.S.: 65.2%
Typical home builtmedian year
1968
12 yrs older than U.S.
1988Highest
8 yrs newer than U.S.
1950Lowest
30 yrs older than U.S.
1961
19 yrs older than U.S.
Getting to work
Average commuteone way
28 min
6% above U.S.
32 minHighest
22% above U.S.
28 min
5% above U.S.
25 minLowest
6% below U.S.
Work from home
11.1%±2.3
U.S.: 15.1%
27.5%±5.8
U.S.: 15.1%
28.5%±11.5Highest
U.S.: 15.1%
9%±2.8Lowest
U.S.: 15.1%
Devens and Groton 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 #39 of 282 in MA — #128 of 149 in CT
School district Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS Groton-Dunstable — Putnam School District
High school in town Killingly High School Groton Dunstable Regional — Putnam High School
Students per teacherat that high school
11.1
13.7Highest
—
9.5Lowest
On TownTapestry
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U.S. 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.