Compare towns
Derby vs Killingly vs Smithfield vs Plainville
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).
Smithfield has the most expensive homes ($446k median).
Plainville has the shortest commute (21 min average).
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 | Smithfield | Plainville |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 12,487Lowest |
17,867 |
22,233Highest |
17,551 |
| Growth since 20102010 → 2020 census | -4.5%Lowest U.S.: +7.4% |
— | +3.2%Highest U.S.: +7.4% |
— |
| Median age | 46.4±3.1Highest 19% above U.S. |
39.5±3Lowest about the U.S. average |
41.8±2.6 7% above U.S. |
44.3±1.5 14% above U.S. |
| Derby and Plainville are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 14.6%±2.9Lowest U.S.: 22% |
19.8%±2.3Highest U.S.: 22% |
16.9%±2.4 U.S.: 22% |
15.6%±2.3 U.S.: 22% |
| Killingly and Smithfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Age 65+ | 21.1%±3.9Highest U.S.: 17.2% |
19.7%±2.4Lowest U.S.: 17.2% |
21.1%±2.1Highest U.S.: 17.2% |
20.1%±2.8 U.S.: 17.2% |
| Bachelor’s degree+adults 25+ | 35.6% U.S.: 35.7% |
22.9%Lowest U.S.: 35.7% |
40%Highest U.S.: 35.7% |
30% U.S.: 35.7% |
| Enrolled in collegeshare of residents | 5.9%±2 U.S.: 6.4% |
5.4%±1.9Lowest U.S.: 6.4% |
16.7%±0.9Highest U.S.: 6.4% |
6.2%±1.6 U.S.: 6.4% |
| Cost of living | ||||
| Household incomemedian | $79,500±$11kLowest about the U.S. average |
$84,350±$8k 4% above U.S. |
$102,077±$8kHighest 26% above U.S. |
$84,343±$7k 4% above U.S. |
| Home valuemedian, owner-occupied | $256,700±$21k 23% below U.S. |
$288,600±$15k 13% below U.S. |
$446,400±$12kHighest 34% above U.S. |
$254,000±$14kLowest 24% below U.S. |
| Rentmedian gross, monthly | $1,452±$95Highest about the U.S. average |
$1,044±$141 26% below U.S. |
$1,016±$241Lowest 28% below U.S. |
$1,126±$147 20% below U.S. |
| Property taxmedian, yearly | $5,510Highest 77% above U.S. |
$3,922Lowest 26% above U.S. |
$5,207 67% above U.S. |
$4,798 54% 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% |
57.1%±17.7Highest U.S.: 51.1% |
40.3%±12.4Lowest U.S.: 51.1% |
| Smithfield 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% |
6.2%Lowest U.S.: 12.5% |
6.5% U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 61.9%Lowest U.S.: 65.2% |
71.6% U.S.: 65.2% |
81.6%Highest U.S.: 65.2% |
67.7% U.S.: 65.2% |
| Typical home builtmedian year | 1967Lowest 13 yrs older than U.S. |
1968 12 yrs older than U.S. |
1976Highest 4 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 minHighest 6% above U.S. |
25 min 7% below U.S. |
21 minLowest 20% below U.S. |
| Work from home | 15.1%±4.8Highest U.S.: 15.1% |
11.1%±2.3 U.S.: 15.1% |
14%±3.1 U.S.: 15.1% |
10.7%±2Lowest U.S.: 15.1% |
| Derby and Smithfield 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 | #8 of 38 in RI | #89 of 149 in CT |
| School district | Derby School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Smithfield | Judicial Centers · Plainville School District |
| High school in town | Derby High School | Killingly High School | Smithfield High School | Plainville High School |
| Students per teacherat that high school | 9.7Lowest |
11.1 |
11.8Highest |
11.4 |
| 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.