What stands out worked out from the figures below

Killingly has the most people working from home (11.1%).

Sullivan has the most homeowners (93.6%).

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	Sullivan
People
Population	17,867Highest	687Lowest
Growth since 20102010 → 2020 census	—	-2.8% U.S.: +7.4%
Median age	39.5±3Lowest about the U.S. average	46.6±6.5Highest 20% above U.S.
	Sullivan and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18	19.8%±2.3Highest U.S.: 22%	16.3%±5Lowest U.S.: 22%
	Killingly and Sullivan 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%	20.5%±3.6Highest U.S.: 17.2%
	Sullivan and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+	22.9%Lowest U.S.: 35.7%	28.5%Highest U.S.: 35.7%
Enrolled in collegeshare of residents	5.4%±1.9Highest U.S.: 6.4%	3.9%±2.6Lowest U.S.: 6.4%
	Killingly and Sullivan 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.	$106,667±$20kHighest 32% above U.S.
	Sullivan and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied	$288,600±$15kHighest 13% below U.S.	$236,500±$29kLowest 29% below U.S.
Rentmedian gross, monthly	$1,044±$141Lowest 26% below U.S.	$1,225±$275Highest 13% below U.S.
	Sullivan and Killingly are within the Census margin of error here, so we can’t say which is really higher.
Property taxmedian, yearly	$3,922Lowest 26% above U.S.	$5,099Highest 63% above U.S.
Renters paying 30%+of income on rent	42.8%±10.9Highest U.S.: 51.1%	40%±84.5Lowest U.S.: 51.1%
	Killingly and Sullivan 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%	4.1%Lowest U.S.: 12.5%
Housing
Homeownersof occupied homes	71.6%Lowest U.S.: 65.2%	93.6%Highest U.S.: 65.2%
Typical home builtmedian year	1968Lowest 12 yrs older than U.S.	1979Highest 1 yr older than U.S.
Getting to work
Average commuteone way	28 minLowest 6% above U.S.	32 minHighest 22% above U.S.
Work from home	11.1%±2.3Highest U.S.: 15.1%	4.2%±2.5Lowest U.S.: 15.1%
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

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.