Compare towns
Killingly vs Ansonia vs Derby 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 kids (19.8% under 18).
Ansonia has the most renters (41.9% rent).
Derby has the most people working from home (15.1%).
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 | Ansonia | Derby | Plainfield |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 17,867 |
19,033Highest |
12,487Lowest |
15,141 |
| Growth since 20102010 → 2020 census | — | -1.7%Highest CT: +0.9% |
-4.5%Lowest CT: +0.9% |
— |
| Median age | 39.5±3 4% below CT |
40.1±1.6 about the CT average |
46.4±3.1Highest 13% above CT |
37±4.5Lowest 10% below CT |
| Kids under 18 | 19.8%±2.3Highest CT: 20.2% |
18.3%±2.8 CT: 20.2% |
14.6%±2.9Lowest 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% |
18.1%±2.7 CT: 18.5% |
21.1%±3.9Highest CT: 18.5% |
16.6%±2.4Lowest 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+ | 22.9% CT: 42.5% |
21.9% CT: 42.5% |
35.6%Highest CT: 42.5% |
15%Lowest CT: 42.5% |
| Enrolled in collegeshare of residents | 5.4%±1.9Lowest CT: 7.1% |
6.2%±1.8Highest CT: 7.1% |
5.9%±2 CT: 7.1% |
5.6%±1.8 CT: 7.1% |
| Ansonia and Derby 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 |
$85,877±$10kHighest 10% below CT |
$79,500±$11k 17% below CT |
$76,993±$8kLowest 20% below CT |
| Ansonia and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $288,600±$15kHighest 21% below CT |
$287,200±$14k 22% below CT |
$256,700±$21kLowest 30% below CT |
$272,100±$16k 26% below CT |
| Killingly and Ansonia are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Rentmedian gross, monthly | $1,044±$141Lowest 30% below CT |
$1,476±$121Highest about the CT average |
$1,452±$95 about the CT average |
$1,204±$70 19% below CT |
| Ansonia and Derby 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 |
$5,446 18% below CT |
$5,510Highest 17% below CT |
$4,209 37% below CT |
| Renters paying 30%+of income on rent | 42.8%±10.9 CT: 52.6% |
39.7%±10Lowest CT: 52.6% |
53.9%±12.6Highest CT: 52.6% |
39.8%±9.5 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 | 11.4%Highest CT: 10% |
9.4% CT: 10% |
10.8% CT: 10% |
8.7%Lowest CT: 10% |
| Housing | ||||
| Homeownersof occupied homes | 71.6% CT: 66.5% |
58.1%Lowest CT: 66.5% |
61.9% CT: 66.5% |
73.6%Highest CT: 66.5% |
| Typical home builtmedian year | 1968 1 yr newer than CT |
1954Lowest 13 yrs older than CT |
1967 same as CT |
1971Highest 4 yrs newer than CT |
| Getting to work | ||||
| Average commuteone way | 28 minHighest 5% above CT |
27 min about the CT average |
27 min about the CT average |
27 minLowest about the CT average |
| Work from home | 11.1%±2.3 CT: 16% |
9.1%±2.9Lowest CT: 16% |
15.1%±4.8Highest CT: 16% |
10%±4 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 | #136 of 149 in CT | #142 of 149 in CT | #138 of 149 in CT | #131 of 149 in CT |
| School district | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Connecticut Technical Education and Career System · Ansonia School District | Derby School District | Plainfield School District |
| High school in town | Killingly High School | Emmett O'Brien Technical High School | Derby High School | Plainfield High School |
| Students per teacherat that high school | 11.1 |
12.2Highest |
9.7Lowest |
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.