What stands out worked out from the figures below

Killingly has the most affordable homes ($289k median).

Plymouth has the most expensive homes ($527k median).

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.

Raising kidsAffordabilityOwning a homeShort commuteWorking from homeYounger crowdSettled, older crowdGrowing town

Measure	Killingly	Plymouth
People
Population	17,867Lowest	63,953Highest
Growth since 20102010 → 2020 census	—	+8.4% U.S.: +7.4%
Median age	39.5±3Lowest about the U.S. average	47.4±1.4Highest 22% above U.S.
Kids under 18	19.8%±2.3Highest U.S.: 22%	17.1%±1.3Lowest U.S.: 22%
	Killingly and Plymouth are within the Census margin of error here, so we can’t say which is really higher.
Age 65+	19.7%±2.4Lowest U.S.: 17.2%	25.2%±1.6Highest U.S.: 17.2%
Bachelor’s degree+adults 25+	22.9%Lowest U.S.: 35.7%	46.5%Highest U.S.: 35.7%
Enrolled in collegeshare of residents	5.4%±1.9Highest U.S.: 6.4%	4.5%±0.9Lowest U.S.: 6.4%
	Killingly and Plymouth are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian	$84,350±$8kLowest 4% above U.S.	$116,941±$5kHighest 45% above U.S.
Home valuemedian, owner-occupied	$288,600±$15kLowest 13% below U.S.	$527,400±$17kHighest 59% above U.S.
Rentmedian gross, monthly	$1,044±$141Lowest 26% below U.S.	$1,933±$108Highest 37% above U.S.
Property taxmedian, yearly	$3,922Lowest 26% above U.S.	$6,599Highest 112% above U.S.
Renters paying 30%+of income on rent	42.8%±10.9Lowest U.S.: 51.1%	51.9%±6.2Highest U.S.: 51.1%
	Plymouth and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line	11.4%Highest U.S.: 12.5%	6.8%Lowest U.S.: 12.5%
Housing
Homeownersof occupied homes	71.6%Lowest U.S.: 65.2%	79%Highest U.S.: 65.2%
Typical home builtmedian year	1968Lowest 12 yrs older than U.S.	1982Highest 2 yrs newer than U.S.
Getting to work
Average commuteone way	28 minLowest 6% above U.S.	31 minHighest 19% above U.S.
Work from home	11.1%±2.3Lowest U.S.: 15.1%	18.2%±1.8Highest U.S.: 15.1%
Schools
Public school scoresrank in state, math + reading	#136 of 149 in CT	#152 of 282 in MA
School district	Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS	Plymouth
High school in town	Killingly High School	Plymouth North High
Students per teacherat that high school	11.1	11.1
On TownTapestry
Old photos in History	None yet	None yet

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.