Compare towns
Collinsville vs Killingly vs Plainfield
Cost, people, housing, commute and schools, side by side, each benchmarked against Connecticut.
What stands out worked out from the figures below
Collinsville has the most people working from home (24.5%).
Killingly has the oldest housing (typical home built 1968).
Plainfield has the youngest population (median age 37).
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.
| Measure | Collinsville | Killingly | Plainfield |
|---|---|---|---|
| Your priorities | |||
| People | |||
| Population | 3,963Lowest |
17,867Highest |
15,141 |
| Growth since 20102010 → 2020 census | -0.7% CT: +0.9% |
— | — |
| Median age | 49.4±11.4Highest 20% above CT |
39.5±3 4% below CT |
37±4.5Lowest 10% below CT |
| Collinsville and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Kids under 18 | 20.1%±5.7Highest CT: 20.2% |
19.8%±2.3 CT: 20.2% |
19.4%±2.6Lowest CT: 20.2% |
| Collinsville and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Age 65+ | 25.6%±7Highest CT: 18.5% |
19.7%±2.4 CT: 18.5% |
16.6%±2.4Lowest CT: 18.5% |
| Collinsville and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Bachelor’s degree+adults 25+ | 57%Highest CT: 42.5% |
22.9% CT: 42.5% |
15%Lowest CT: 42.5% |
| Enrolled in collegeshare of residents | 4.7%±3Lowest CT: 7.1% |
5.4%±1.9 CT: 7.1% |
5.6%±1.8Highest CT: 7.1% |
| Plainfield and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Cost of living | |||
| Household incomemedian | $94,815±$16kHighest about the CT average |
$84,350±$8k 12% below CT |
$76,993±$8kLowest 20% below CT |
| Collinsville and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Home valuemedian, owner-occupied | $395,500±$42kHighest 8% above CT |
$288,600±$15k 21% below CT |
$272,100±$16kLowest 26% below CT |
| Rentmedian gross, monthly | $1,455±$322Highest about the CT average |
$1,044±$141Lowest 30% below CT |
$1,204±$70 19% below CT |
| Collinsville and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | |||
| Property taxmedian, yearly | $7,349Highest 11% above CT |
$3,922Lowest 41% below CT |
$4,209 37% below CT |
| Renters paying 30%+of income on rent | 64%±36.4Highest CT: 52.6% |
42.8%±10.9 CT: 52.6% |
39.8%±9.5Lowest CT: 52.6% |
| Collinsville and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Below poverty line | 7.7%Lowest CT: 10% |
11.4%Highest CT: 10% |
8.7% CT: 10% |
| Housing | |||
| Homeownersof occupied homes | 70.7%Lowest CT: 66.5% |
71.6% CT: 66.5% |
73.6%Highest CT: 66.5% |
| Typical home builtmedian year | 1979Highest 12 yrs newer than CT |
1968Lowest 1 yr newer than CT |
1971 4 yrs newer than CT |
| Getting to work | |||
| Average commuteone way | 30 minHighest 14% above CT |
28 min 5% above CT |
27 minLowest about the CT average |
| Work from home | 24.5%±10.7Highest CT: 16% |
11.1%±2.3 CT: 16% |
10%±4Lowest CT: 16% |
| Schools | |||
| Public school scoresrank in state, math + reading | — | #136 of 149 in CT | #131 of 149 in CT |
| School district | — | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Plainfield School District |
| High school in town | — | Killingly High School | Plainfield High School |
| Students per teacherat that high school | — | 11.1Highest |
10.3Lowest |
| 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.