Compare towns
Derby vs Killingly vs Bloomfield vs Rocky Hill
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 affordable homes ($257k median).
Killingly has the most kids (19.8% under 18).
Bloomfield has the most people working from home (18.2%).
Rocky Hill has the most expensive homes ($337k median).
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 | Bloomfield | Rocky Hill |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 12,487Lowest |
17,867 |
21,754Highest |
20,880 |
| Growth since 20102010 → 2020 census | -4.5% CT: +0.9% |
— | — | — |
| Median age | 46.4±3.1 13% above CT |
39.5±3Lowest 4% below CT |
48.4±3.3Highest 18% above CT |
43.2±1.8 5% above CT |
| Bloomfield and Derby are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 14.6%±2.9 CT: 20.2% |
19.8%±2.3Highest CT: 20.2% |
13.7%±2.1Lowest CT: 20.2% |
16.8%±2.2 CT: 20.2% |
| Killingly and Rocky Hill 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%±2.4Lowest CT: 18.5% |
27.3%±2.6Highest CT: 18.5% |
22.7%±2.8 CT: 18.5% |
| Bloomfield and Rocky Hill are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 35.6% CT: 42.5% |
22.9%Lowest CT: 42.5% |
40.8% CT: 42.5% |
45.3%Highest CT: 42.5% |
| Enrolled in collegeshare of residents | 5.9%±2 CT: 7.1% |
5.4%±1.9 CT: 7.1% |
6.6%±1.8Highest CT: 7.1% |
4.9%±1.4Lowest CT: 7.1% |
| Bloomfield and Derby 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 |
$84,350±$8k 12% below CT |
$98,725±$14k 3% above CT |
$99,941±$9kHighest 4% above CT |
| Rocky Hill and Bloomfield 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 |
$288,600±$15k 21% below CT |
$286,900±$11k 22% below CT |
$337,300±$17kHighest 8% below CT |
| Rentmedian gross, monthly | $1,452±$95 about the CT average |
$1,044±$141Lowest 30% below CT |
$1,881±$175Highest 26% above CT |
$1,783±$54 20% above CT |
| Bloomfield and Rocky Hill are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Property taxmedian, yearly | $5,510 17% below CT |
$3,922Lowest 41% below CT |
$5,795 13% below CT |
$6,298Highest 5% below CT |
| Renters paying 30%+of income on rent | 53.9%±12.6Highest CT: 52.6% |
42.8%±10.9 CT: 52.6% |
52.6%±11.2 CT: 52.6% |
33.6%±8Lowest CT: 52.6% |
| Derby and Bloomfield 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% |
5.8% CT: 10% |
4.8%Lowest CT: 10% |
| Housing | ||||
| Homeownersof occupied homes | 61.9%Lowest CT: 66.5% |
71.6%Highest CT: 66.5% |
71.1% CT: 66.5% |
68.3% CT: 66.5% |
| Typical home builtmedian year | 1967Lowest same as CT |
1968 1 yr newer than CT |
1970 3 yrs newer than CT |
1979Highest 12 yrs newer than CT |
| Getting to work | ||||
| Average commuteone way | 27 min about the CT average |
28 minHighest 5% above CT |
23 min 12% below CT |
21 minLowest 22% below CT |
| Work from home | 15.1%±4.8 CT: 16% |
11.1%±2.3Lowest CT: 16% |
18.2%±3.1Highest CT: 16% |
16%±2.6 CT: 16% |
| Bloomfield and Rocky Hill 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 | #139 of 149 in CT | #47 of 149 in CT |
| School district | Derby School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Bloomfield School District · Capitol Region Education Council | Capitol Region Education Council · Rocky Hill School District |
| High school in town | Derby High School | Killingly High School | Academy of International Studies 6-12 | Rocky Hill High School |
| Students per teacherat that high school | 9.7Lowest |
11.1 |
10.1 |
11.4Highest |
| On TownTapestry | ||||
| Old photos in History | None yet | None yet | None yet | 6 photos → |
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.