Compare towns

Groton vs Killingly

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

What stands out worked out from the figures below

Groton has the shortest commute (18 min average).
Killingly has the most people working from home (11.1%).

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.

MeasureGrotonKillingly
People
Population
9,490Lowest
17,867Highest
Growth since 20102010 → 2020 census
-9.6%
CT: +0.9%
—
Median age
39±3.7Lowest
5% below CT
39.5±3Highest
4% below CT
Killingly and Groton are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18
15.7%±3.5Lowest
CT: 20.2%
19.8%±2.3Highest
CT: 20.2%
Killingly and Groton are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
16.2%±2.7Lowest
CT: 18.5%
19.7%±2.4Highest
CT: 18.5%
Killingly and Groton are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+
38.8%Highest
CT: 42.5%
22.9%Lowest
CT: 42.5%
Enrolled in collegeshare of residents
4.2%±1.7Lowest
CT: 7.1%
5.4%±1.9Highest
CT: 7.1%
Killingly and Groton are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian
$79,577±$8kLowest
17% below CT
$84,350±$8kHighest
12% below CT
Killingly and Groton are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$306,600±$26kHighest
16% below CT
$288,600±$15kLowest
21% below CT
Groton and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Rentmedian gross, monthly
$1,250±$98Highest
16% below CT
$1,044±$141Lowest
30% below CT
Groton and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Property taxmedian, yearly
$4,411Highest
34% below CT
$3,922Lowest
41% below CT
Renters paying 30%+of income on rent
46.5%±11.7Highest
CT: 52.6%
42.8%±10.9Lowest
CT: 52.6%
Groton and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
18.6%Highest
CT: 10%
11.4%Lowest
CT: 10%
Housing
Homeownersof occupied homes
45.4%Lowest
CT: 66.5%
71.6%Highest
CT: 66.5%
Typical home builtmedian year
1971Highest
4 yrs newer than CT
1968Lowest
1 yr newer than CT
Getting to work
Average commuteone way
18 minLowest
34% below CT
28 minHighest
5% above CT
Work from home
4.8%±2Lowest
CT: 16%
11.1%±2.3Highest
CT: 16%
Schools
Public school scoresrank in state, math + reading — #136 of 149 in CT
School district — Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS
High school in town — Killingly High School
Students per teacherat that high school —
11.1
On TownTapestry
Old photos in History 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.