Compare towns
Killingly vs Columbia vs Union vs Plainfield
Cost, people, housing, commute and schools, side by side, each benchmarked against Connecticut.
What stands out worked out from the figures below
Killingly has the most renters (28.4% rent).
Columbia has the most people working from home (21.6%).
Union has the most homeowners (92.9%).
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 | Killingly | Columbia | Union | Plainfield |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 17,867Highest |
5,300 |
944Lowest |
15,141 |
| Median age | 39.5±3 4% below CT |
51.3±10.3Highest 25% above CT |
49.9±4.3 21% above CT |
37±4.5Lowest 10% below CT |
| Columbia and Union are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 19.8%±2.3Highest CT: 20.2% |
13.7%±4.3Lowest CT: 20.2% |
16.9%±4.3 CT: 20.2% |
19.4%±2.6 CT: 20.2% |
| Killingly and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Age 65+ | 19.7%±2.4 CT: 18.5% |
24.9%±5.4Highest CT: 18.5% |
24.5%±2.6 CT: 18.5% |
16.6%±2.4Lowest CT: 18.5% |
| Columbia and Union are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 22.9% CT: 42.5% |
34.6%Highest CT: 42.5% |
24% CT: 42.5% |
15%Lowest CT: 42.5% |
| Enrolled in collegeshare of residents | 5.4%±1.9 CT: 7.1% |
4.8%±2.5Lowest CT: 7.1% |
5%±3.3 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 | $84,350±$8k 12% below CT |
$127,000±$30kHighest 33% above CT |
$88,958±$14k 7% below CT |
$76,993±$8kLowest 20% below CT |
| Columbia and Union are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $288,600±$15k 21% below CT |
$361,500±$16kHighest about the CT average |
$330,400±$26k 10% below CT |
$272,100±$16kLowest 26% below CT |
| Columbia and Union are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Rentmedian gross, monthly | $1,044±$141 30% below CT |
$966±$304Lowest 35% below CT |
— | $1,204±$70Highest 19% below CT |
| Plainfield and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Property taxmedian, yearly | $3,922Lowest 41% below CT |
$5,228Highest 21% below CT |
$4,793 28% below CT |
$4,209 37% below CT |
| Renters paying 30%+of income on rent | 42.8%±10.9 CT: 52.6% |
17.6%±16.2Lowest CT: 52.6% |
90%±64.7Highest CT: 52.6% |
39.8%±9.5 CT: 52.6% |
| Union 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 CT: 10% |
6.1% CT: 10% |
5.7%Lowest CT: 10% |
8.7% CT: 10% |
| Housing | ||||
| Homeownersof occupied homes | 71.6%Lowest CT: 66.5% |
83.3% CT: 66.5% |
92.9%Highest CT: 66.5% |
73.6% CT: 66.5% |
| Typical home builtmedian year | 1968Lowest 1 yr newer than CT |
1984Highest 17 yrs newer than CT |
1976 9 yrs newer than CT |
1971 4 yrs newer than CT |
| Getting to work | ||||
| Average commuteone way | 28 min 5% above CT |
32 minHighest 21% above CT |
32 min 20% above CT |
27 minLowest about the CT average |
| Work from home | 11.1%±2.3 CT: 16% |
21.6%±6Highest CT: 16% |
9%±3.7Lowest CT: 16% |
10%±4 CT: 16% |
| Schools | ||||
| Public school scoresrank in state, math + reading | #136 of 149 in CT | #114 of 149 in CT | — | #131 of 149 in CT |
| School district | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Columbia School District | Union School District | Plainfield School District |
| High school in town | Killingly High School | None in town | None in town | 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 | 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.