Compare towns
Derby vs Killingly vs Millis vs Plainfield
Cost, people, housing, commute and schools, side by side, each benchmarked against the U.S..
What stands out worked out from the figures below
Derby has the most renters (38.1% rent).
Killingly has the most kids (19.8% under 18).
Millis has the most expensive homes ($604k median).
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 | Derby | Killingly | Millis | Plainfield |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 12,487 |
17,867Highest |
8,888Lowest |
15,141 |
| Growth since 20102010 → 2020 census | -4.5%Lowest U.S.: +7.4% |
— | +7.2%Highest U.S.: +7.4% |
— |
| Median age | 46.4±3.1Highest 19% above U.S. |
39.5±3 about the U.S. average |
46.4±3Highest 19% above U.S. |
37±4.5Lowest 5% below U.S. |
| Kids under 18 | 14.6%±2.9Lowest U.S.: 22% |
19.8%±2.3Highest U.S.: 22% |
18.4%±2.8 U.S.: 22% |
19.4%±2.6 U.S.: 22% |
| 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 U.S.: 17.2% |
19.7%±2.4 U.S.: 17.2% |
23.5%±3.9Highest U.S.: 17.2% |
16.6%±2.4Lowest U.S.: 17.2% |
| Millis 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% U.S.: 35.7% |
22.9% U.S.: 35.7% |
54.5%Highest U.S.: 35.7% |
15%Lowest U.S.: 35.7% |
| Enrolled in collegeshare of residents | 5.9%±2Highest U.S.: 6.4% |
5.4%±1.9 U.S.: 6.4% |
4.9%±1.6Lowest U.S.: 6.4% |
5.6%±1.8 U.S.: 6.4% |
| 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 about the U.S. average |
$84,350±$8k 4% above U.S. |
$155,996±$9kHighest 93% above U.S. |
$76,993±$8kLowest 5% below U.S. |
| Home valuemedian, owner-occupied | $256,700±$21kLowest 23% below U.S. |
$288,600±$15k 13% below U.S. |
$603,500±$31kHighest 81% above U.S. |
$272,100±$16k 18% below U.S. |
| Rentmedian gross, monthly | $1,452±$95 about the U.S. average |
$1,044±$141Lowest 26% below U.S. |
$1,696±$279Highest 20% above U.S. |
$1,204±$70 15% below U.S. |
| Millis and Derby are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Property taxmedian, yearly | $5,510 77% above U.S. |
$3,922Lowest 26% above U.S. |
$9,344Highest 200% above U.S. |
$4,209 35% above U.S. |
| Renters paying 30%+of income on rent | 53.9%±12.6 U.S.: 51.1% |
42.8%±10.9 U.S.: 51.1% |
56.5%±16.6Highest U.S.: 51.1% |
39.8%±9.5Lowest U.S.: 51.1% |
| Millis and Derby are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 10.8% U.S.: 12.5% |
11.4%Highest U.S.: 12.5% |
4.8%Lowest U.S.: 12.5% |
8.7% U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 61.9%Lowest U.S.: 65.2% |
71.6% U.S.: 65.2% |
83.2%Highest U.S.: 65.2% |
73.6% U.S.: 65.2% |
| Typical home builtmedian year | 1967Lowest 13 yrs older than U.S. |
1968 12 yrs older than U.S. |
1974Highest 6 yrs older than U.S. |
1971 9 yrs older than U.S. |
| Getting to work | ||||
| Average commuteone way | 27 min about the U.S. average |
28 min 6% above U.S. |
31 minHighest 16% above U.S. |
27 minLowest about the U.S. average |
| Work from home | 15.1%±4.8 U.S.: 15.1% |
11.1%±2.3 U.S.: 15.1% |
17.5%±4.2Highest U.S.: 15.1% |
10%±4Lowest U.S.: 15.1% |
| Millis 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 | #63 of 282 in MA | #131 of 149 in CT |
| School district | Derby School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Millis | Plainfield School District |
| High school in town | Derby High School | Killingly High School | Millis High School | Plainfield High School |
| Students per teacherat that high school | 9.7Lowest |
11.1Highest |
10.7 |
10.3 |
| On TownTapestry | ||||
| Old photos in History | None yet | None yet | None yet | None yet |
U.S. 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.