Compare towns

Harwinton vs Killingly vs Marlborough

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

What stands out worked out from the figures below

Harwinton has the oldest population (median age 46.1).
Killingly has the most renters (28.4% rent).
Marlborough has the most people working from home (33.2%).

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.

MeasureHarwintonKillinglyMarlborough
People
Population
5,575Lowest
17,867Highest
6,130
Median age
46.1±4.3Highest
12% above CT
39.5±3Lowest
4% below CT
41.8±4.7
about the CT average
Harwinton and Marlborough are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18
20%±4.2
CT: 20.2%
19.8%±2.3Lowest
CT: 20.2%
23.6%±5.2Highest
CT: 20.2%
Marlborough and Harwinton are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
22.1%±3.5Highest
CT: 18.5%
19.7%±2.4
CT: 18.5%
16.3%±3.5Lowest
CT: 18.5%
Harwinton and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+
40.3%
CT: 42.5%
22.9%Lowest
CT: 42.5%
45.9%Highest
CT: 42.5%
Enrolled in collegeshare of residents
6.7%±2.9Highest
CT: 7.1%
5.4%±1.9
CT: 7.1%
5.1%±2.6Lowest
CT: 7.1%
Harwinton and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian
$129,643±$18k
35% above CT
$84,350±$8kLowest
12% below CT
$142,105±$35kHighest
48% above CT
Marlborough and Harwinton are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$352,100±$16k
4% below CT
$288,600±$15kLowest
21% below CT
$379,100±$33kHighest
3% above CT
Marlborough and Harwinton are within the Census margin of error here, so we can’t say which is really higher.
Rentmedian gross, monthly
$1,504±$200Highest
about the CT average
$1,044±$141Lowest
30% below CT
$1,333±$438
10% below CT
Harwinton and Marlborough are within the Census margin of error here, so we can’t say which is really higher.
Property taxmedian, yearly
$5,503
17% below CT
$3,922Lowest
41% below CT
$7,397Highest
11% above CT
Renters paying 30%+of income on rent
27.8%±27.9Lowest
CT: 52.6%
42.8%±10.9
CT: 52.6%
59.2%±36Highest
CT: 52.6%
Marlborough and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
4.8%Lowest
CT: 10%
11.4%Highest
CT: 10%
9.7%
CT: 10%
Housing
Homeownersof occupied homes
93%Highest
CT: 66.5%
71.6%Lowest
CT: 66.5%
92.6%
CT: 66.5%
Typical home builtmedian year
1961Lowest
6 yrs older than CT
1968
1 yr newer than CT
1977Highest
10 yrs newer than CT
Getting to work
Average commuteone way
26 minLowest
3% below CT
28 min
5% above CT
34 minHighest
29% above CT
Work from home
13.5%±4.7
CT: 16%
11.1%±2.3Lowest
CT: 16%
33.2%±8.9Highest
CT: 16%
Schools
Public school scoresrank in state, math + reading #34 of 149 in CT #136 of 149 in CT #52 of 149 in CT
School district Regional School District 10 Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS Marlborough School District
High school in town None in town Killingly High School None in town
Students per teacherat that high school —
11.1
—
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.