Compare towns
Killingly vs Durham vs Plainfield 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 most renters (28.4% rent).
Durham has the highest household income ($159k).
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 | Durham | Plainfield | Seymour |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 17,867Highest |
7,208Lowest |
15,141 |
16,889 |
| Median age | 39.5±3 4% below CT |
45.5±2.8Highest 11% above CT |
37±4.5Lowest 10% below CT |
41.6±3 about the CT average |
| Durham and Seymour 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% |
16.4%±3.6Lowest CT: 20.2% |
19.4%±2.6 CT: 20.2% |
19.3%±3.9 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%±2.4Highest CT: 18.5% |
17.4%±3.7 CT: 18.5% |
16.6%±2.4Lowest CT: 18.5% |
16.8%±2.4 CT: 18.5% |
| Killingly and Durham 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% |
47.9%Highest CT: 42.5% |
15%Lowest CT: 42.5% |
33.3% CT: 42.5% |
| Enrolled in collegeshare of residents | 5.4%±1.9 CT: 7.1% |
3.6%±1.5Lowest CT: 7.1% |
5.6%±1.8 CT: 7.1% |
6.4%±2.1Highest CT: 7.1% |
| Seymour and Plainfield 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 |
$158,857±$7kHighest 66% above CT |
$76,993±$8kLowest 20% below CT |
$107,708±$15k 12% above CT |
| Home valuemedian, owner-occupied | $288,600±$15k 21% below CT |
$424,800±$23kHighest 16% above CT |
$272,100±$16kLowest 26% below CT |
$370,000±$19k about the CT average |
| Rentmedian gross, monthly | $1,044±$141Lowest 30% below CT |
$1,154±$448 22% below CT |
$1,204±$70 19% below CT |
$1,608±$86Highest 8% above CT |
| Property taxmedian, yearly | $3,922Lowest 41% below CT |
$7,998Highest 20% above CT |
$4,209 37% below CT |
$6,635 about the CT average |
| Renters paying 30%+of income on rent | 42.8%±10.9 CT: 52.6% |
44.9%±28.4 CT: 52.6% |
39.8%±9.5Lowest CT: 52.6% |
45.2%±17.3Highest CT: 52.6% |
| Seymour and Durham 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% |
3.4%Lowest CT: 10% |
8.7% CT: 10% |
6.7% CT: 10% |
| Housing | ||||
| Homeownersof occupied homes | 71.6%Lowest CT: 66.5% |
93.2%Highest CT: 66.5% |
73.6% CT: 66.5% |
74.2% CT: 66.5% |
| Typical home builtmedian year | 1968Lowest 1 yr newer than CT |
1976Highest 9 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 |
23 minLowest 13% below CT |
27 min about the CT average |
32 minHighest 21% above CT |
| Work from home | 11.1%±2.3 CT: 16% |
20.5%±6.4Highest CT: 16% |
10%±4Lowest CT: 16% |
16.4%±3.5 CT: 16% |
| Durham 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 | #88 of 149 in CT | #131 of 149 in CT | #105 of 149 in CT |
| School district | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Regional School District 13 | Plainfield School District | Seymour School District |
| High school in town | Killingly High School | Coginchaug Regional High School | Plainfield High School | Seymour High School |
| Students per teacherat that high school | 11.1 |
8.9Lowest |
10.3 |
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.



