Compare towns
Killingly vs Columbia vs Plainville vs Seymour
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 youngest population (median age 39.5).
Columbia has the most people working from home (21.6%).
Plainville has the shortest commute (21 min average).
Seymour has the most expensive homes ($370k 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.
| Measure | Killingly | Columbia | Plainville | Seymour |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 17,867Highest |
5,300Lowest |
17,551 |
16,889 |
| Median age | 39.5±3Lowest 4% below CT |
51.3±10.3Highest 25% above CT |
44.3±1.5 8% above CT |
41.6±3 about the CT average |
| Columbia and Plainville 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% |
15.6%±2.3 CT: 20.2% |
19.3%±3.9 CT: 20.2% |
| Killingly and Seymour 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% |
20.1%±2.8 CT: 18.5% |
16.8%±2.4Lowest CT: 18.5% |
| Columbia and Plainville 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 CT: 42.5% |
34.6%Highest CT: 42.5% |
30% CT: 42.5% |
33.3% CT: 42.5% |
| Enrolled in collegeshare of residents | 5.4%±1.9 CT: 7.1% |
4.8%±2.5Lowest CT: 7.1% |
6.2%±1.6 CT: 7.1% |
6.4%±2.1Highest CT: 7.1% |
| Seymour and Plainville 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 |
$84,343±$7kLowest 12% below CT |
$107,708±$15k 12% above CT |
| Columbia and Seymour 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±$16k about the CT average |
$254,000±$14kLowest 31% below CT |
$370,000±$19kHighest about the CT average |
| Seymour and Columbia 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 |
$1,126±$147 24% below CT |
$1,608±$86Highest 8% above CT |
| Property taxmedian, yearly | $3,922Lowest 41% below CT |
$5,228 21% below CT |
$4,798 28% below CT |
$6,635Highest about the CT average |
| Renters paying 30%+of income on rent | 42.8%±10.9 CT: 52.6% |
17.6%±16.2Lowest CT: 52.6% |
40.3%±12.4 CT: 52.6% |
45.2%±17.3Highest CT: 52.6% |
| Seymour 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%Lowest CT: 10% |
6.5% CT: 10% |
6.7% CT: 10% |
| Housing | ||||
| Homeownersof occupied homes | 71.6% CT: 66.5% |
83.3%Highest CT: 66.5% |
67.7%Lowest CT: 66.5% |
74.2% CT: 66.5% |
| Typical home builtmedian year | 1968Lowest 1 yr newer than CT |
1984Highest 17 yrs newer than CT |
1971 4 yrs newer than CT |
1973 6 yrs newer than CT |
| Getting to work | ||||
| Average commuteone way | 28 min 5% above CT |
32 minHighest 21% above CT |
21 minLowest 20% below CT |
32 minHighest 21% above CT |
| Work from home | 11.1%±2.3 CT: 16% |
21.6%±6Highest CT: 16% |
10.7%±2Lowest CT: 16% |
16.4%±3.5 CT: 16% |
| Columbia and Seymour 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 | #136 of 149 in CT | #114 of 149 in CT | #89 of 149 in CT | #105 of 149 in CT |
| School district | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Columbia School District | Judicial Centers · Plainville School District | Seymour School District |
| High school in town | Killingly High School | None in town | Plainville High School | Seymour High School |
| Students per teacherat that high school | 11.1Lowest |
— | 11.4 |
11.8Highest |
| 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.