Compare towns

Groton vs Thompson vs Derby

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).
Thompson has the most homeowners (84.3%).
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.

MeasureGrotonThompsonDerby
People
Population
9,490
9,337Lowest
12,487Highest
Growth since 20102010 → 2020 census
-9.6%Lowest
CT: +0.9%
—
-4.5%Highest
CT: +0.9%
Median age
39±3.7Lowest
5% below CT
54.1±2.2Highest
32% above CT
46.4±3.1
13% above CT
Kids under 18
15.7%±3.5Highest
CT: 20.2%
11.4%±2.8Lowest
CT: 20.2%
14.6%±2.9
CT: 20.2%
Groton and Derby 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%
24.4%±4.3Highest
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+
38.8%Highest
CT: 42.5%
21.9%Lowest
CT: 42.5%
35.6%
CT: 42.5%
Enrolled in collegeshare of residents
4.2%±1.7
CT: 7.1%
2.9%±1.3Lowest
CT: 7.1%
5.9%±2Highest
CT: 7.1%
Derby 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±$8k
17% below CT
$93,629±$18kHighest
about the CT average
$79,500±$11kLowest
17% below CT
Thompson 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
$291,900±$24k
20% below CT
$256,700±$21kLowest
30% below CT
Groton and Thompson are within the Census margin of error here, so we can’t say which is really higher.
Rentmedian gross, monthly
$1,250±$98
16% below CT
$1,012±$344Lowest
32% below CT
$1,452±$95Highest
about the CT average
Property taxmedian, yearly
$4,411
34% below CT
$3,822Lowest
42% below CT
$5,510Highest
17% below CT
Renters paying 30%+of income on rent
46.5%±11.7Lowest
CT: 52.6%
54%±18.7Highest
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
18.6%Highest
CT: 10%
5.9%Lowest
CT: 10%
10.8%
CT: 10%
Housing
Homeownersof occupied homes
45.4%Lowest
CT: 66.5%
84.3%Highest
CT: 66.5%
61.9%
CT: 66.5%
Typical home builtmedian year
1971Highest
4 yrs newer than CT
1963Lowest
4 yrs older than CT
1967
same as CT
Getting to work
Average commuteone way
18 minLowest
34% below CT
32 minHighest
20% above CT
27 min
about the CT average
Work from home
4.8%±2Lowest
CT: 16%
13.1%±4.4
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 — #130 of 149 in CT #138 of 149 in CT
School district — Thompson School District Derby School District
High school in town — Tourtellotte Memorial High School Derby High School
Students per teacherat that high school —
7.9Lowest
9.7Highest
On TownTapestry
Old photos in History 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.