Compare towns
Derby vs Killingly vs Plainfield vs Quinebaug
Cost, people, housing, commute and schools, side by side, each benchmarked against Connecticut.
What stands out worked out from the figures below
Derby has the most renters (38.1% rent).
Killingly has the most expensive homes ($289k median).
Plainfield has the youngest population (median age 37).
Quinebaug has the most people working from home (23.3%).
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 | Derby | Killingly | Plainfield | Quinebaug |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 12,487 |
17,867Highest |
15,141 |
1,193Lowest |
| Growth since 20102010 → 2020 census | -4.5%Lowest CT: +0.9% |
— | — | -1.7%Highest CT: +0.9% |
| Median age | 46.4±3.1 13% above CT |
39.5±3 4% below CT |
37±4.5Lowest 10% below CT |
56.5±1Highest 37% above CT |
| Kids under 18 | 14.6%±2.9 CT: 20.2% |
19.8%±2.3Highest CT: 20.2% |
19.4%±2.6 CT: 20.2% |
0%±3.3Lowest 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+ | 21.1%±3.9 CT: 18.5% |
19.7%±2.4 CT: 18.5% |
16.6%±2.4Lowest CT: 18.5% |
29.1%±9.8Highest CT: 18.5% |
| Quinebaug and Derby are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 35.6%Highest CT: 42.5% |
22.9% CT: 42.5% |
15% CT: 42.5% |
10.3%Lowest CT: 42.5% |
| Enrolled in collegeshare of residents | 5.9%±2Highest CT: 7.1% |
5.4%±1.9 CT: 7.1% |
5.6%±1.8 CT: 7.1% |
1.3%±2.4Lowest CT: 7.1% |
| Derby and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Cost of living | ||||
| Household incomemedian | $79,500±$11k 17% below CT |
$84,350±$8k 12% below CT |
$76,993±$8kLowest 20% below CT |
$105,181±$36kHighest 10% above CT |
| Quinebaug and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $256,700±$21k 30% below CT |
$288,600±$15kHighest 21% below CT |
$272,100±$16k 26% below CT |
$237,800±$66kLowest 35% below CT |
| Killingly and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Rentmedian gross, monthly | $1,452±$95Highest about the CT average |
$1,044±$141Lowest 30% below CT |
$1,204±$70 19% below CT |
— |
| Property taxmedian, yearly | $5,510Highest 17% below CT |
$3,922 41% below CT |
$4,209 37% below CT |
$3,703Lowest 44% below CT |
| Renters paying 30%+of income on rent | 53.9%±12.6Highest CT: 52.6% |
42.8%±10.9 CT: 52.6% |
39.8%±9.5 CT: 52.6% |
0%±100Lowest CT: 52.6% |
| Derby and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 10.8% CT: 10% |
11.4%Highest CT: 10% |
8.7% CT: 10% |
1.3%Lowest CT: 10% |
| Housing | ||||
| Homeownersof occupied homes | 61.9%Lowest CT: 66.5% |
71.6% CT: 66.5% |
73.6% CT: 66.5% |
97%Highest CT: 66.5% |
| Typical home builtmedian year | 1967 same as CT |
1968 1 yr newer than CT |
1971Highest 4 yrs newer than CT |
1960Lowest 7 yrs older than CT |
| Getting to work | ||||
| Average commuteone way | 27 min about the CT average |
28 minHighest 5% above CT |
27 min about the CT average |
26 minLowest about the CT average |
| Work from home | 15.1%±4.8 CT: 16% |
11.1%±2.3 CT: 16% |
10%±4Lowest CT: 16% |
23.3%±17.9Highest CT: 16% |
| Quinebaug and Derby 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 | #138 of 149 in CT | #136 of 149 in CT | #131 of 149 in CT | — |
| School district | Derby School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Plainfield School District | — |
| High school in town | Derby High School | Killingly High School | Plainfield High School | — |
| Students per teacherat that high school | 9.7Lowest |
11.1Highest |
10.3 |
— |
| 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.



