Compare towns

Old Lyme vs Killingworth

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

What stands out worked out from the figures below

Old Lyme has the most kids (20.3% under 18).
Killingworth has the shortest commute (24 min average).

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.

MeasureOld LymeKillingworth
People
Population
7,679Highest
6,240Lowest
Median age
50.6±3.3Lowest
23% above CT
53.3±4.6Highest
30% above CT
Killingworth and Old Lyme are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18
20.3%±3.1Highest
CT: 20.2%
18.7%±4.6Lowest
CT: 20.2%
Old Lyme and Killingworth are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
26.4%±3.1Highest
CT: 18.5%
25.5%±4.9Lowest
CT: 18.5%
Old Lyme and Killingworth are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+
56.5%Highest
CT: 42.5%
55.4%Lowest
CT: 42.5%
Enrolled in collegeshare of residents
2.4%±1.2Lowest
CT: 7.1%
3.2%±1.5Highest
CT: 7.1%
Killingworth and Old Lyme are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian
$131,899±$11kLowest
38% above CT
$140,655±$16kHighest
47% above CT
Killingworth and Old Lyme are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$484,200±$21kHighest
32% above CT
$446,200±$56kLowest
22% above CT
Old Lyme and Killingworth are within the Census margin of error here, so we can’t say which is really higher.
Rentmedian gross, monthly
$2,238±$295
50% above CT
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Property taxmedian, yearly
$6,284Lowest
5% below CT
$6,550Highest
about the CT average
Renters paying 30%+of income on rent
51.6%±17.2Highest
CT: 52.6%
45.2%±15.8Lowest
CT: 52.6%
Old Lyme and Killingworth are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
2.9%Lowest
CT: 10%
3%Highest
CT: 10%
Housing
Homeownersof occupied homes
88.8%Lowest
CT: 66.5%
96.7%Highest
CT: 66.5%
Typical home builtmedian year
1965Lowest
2 yrs older than CT
1987Highest
20 yrs newer than CT
Getting to work
Average commuteone way
27 minHighest
about the CT average
24 minLowest
10% below CT
Work from home
24.2%±5.7Highest
CT: 16%
24%±6.8Lowest
CT: 16%
Old Lyme and Killingworth 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 #10 of 149 in CT #29 of 149 in CT
School district Regional School District 18 Regional School District 17
High school in town Lyme-Old Lyme High School None in town
Students per teacherat that high school
9.6
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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.