Compare towns
Derby vs Thomaston vs Killingly
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 people working from home (15.1%).
Thomaston has the highest household income ($103k).
Killingly has the youngest population (median age 39.5).
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 | Thomaston | Killingly |
|---|---|---|---|
| Your priorities | |||
| People | |||
| Population | 12,487 |
7,492Lowest |
17,867Highest |
| Growth since 20102010 → 2020 census | -4.5% CT: +0.9% |
— | — |
| Median age | 46.4±3.1Highest 13% above CT |
41.5±7.7 about the CT average |
39.5±3Lowest 4% below CT |
| Derby and Thomaston are within the Census margin of error here, so we can’t say which is really higher. | |||
| Kids under 18 | 14.6%±2.9Lowest CT: 20.2% |
20.5%±5.2Highest CT: 20.2% |
19.8%±2.3 CT: 20.2% |
| Thomaston and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Age 65+ | 21.1%±3.9Highest CT: 18.5% |
18.6%±3.6Lowest CT: 18.5% |
19.7%±2.4 CT: 18.5% |
| Derby and Killingly 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% |
34% CT: 42.5% |
22.9%Lowest CT: 42.5% |
| Enrolled in collegeshare of residents | 5.9%±2Highest CT: 7.1% |
5.5%±2.1 CT: 7.1% |
5.4%±1.9Lowest CT: 7.1% |
| Derby and Thomaston are within the Census margin of error here, so we can’t say which is really higher. | |||
| Cost of living | |||
| Household incomemedian | $79,500±$11kLowest 17% below CT |
$103,218±$15kHighest 8% above CT |
$84,350±$8k 12% below CT |
| Thomaston 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±$21kLowest 30% below CT |
$282,600±$23k 23% below CT |
$288,600±$15kHighest 21% below CT |
| Killingly and Thomaston 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 |
$1,037±$147Lowest 30% below CT |
$1,044±$141 30% below CT |
| Property taxmedian, yearly | $5,510 17% below CT |
$5,915Highest 11% below CT |
$3,922Lowest 41% below CT |
| Renters paying 30%+of income on rent | 53.9%±12.6 CT: 52.6% |
57.9%±22Highest CT: 52.6% |
42.8%±10.9Lowest CT: 52.6% |
| Thomaston and Derby are within the Census margin of error here, so we can’t say which is really higher. | |||
| Below poverty line | 10.8% CT: 10% |
2.3%Lowest CT: 10% |
11.4%Highest CT: 10% |
| Housing | |||
| Homeownersof occupied homes | 61.9%Lowest CT: 66.5% |
77.7%Highest CT: 66.5% |
71.6% CT: 66.5% |
| Typical home builtmedian year | 1967 same as CT |
1961Lowest 6 yrs older than CT |
1968Highest 1 yr newer than CT |
| Getting to work | |||
| Average commuteone way | 27 min about the CT average |
27 minLowest about the CT average |
28 minHighest 5% above CT |
| Work from home | 15.1%±4.8Highest CT: 16% |
7.6%±3.7Lowest CT: 16% |
11.1%±2.3 CT: 16% |
| Derby and Killingly 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 | #106 of 149 in CT | #136 of 149 in CT |
| School district | Derby School District | Thomaston School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS |
| High school in town | Derby High School | Thomaston High School | Killingly High School |
| Students per teacherat that high school | 9.7Lowest |
10.7 |
11.1Highest |
| 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.