Compare towns
Derby vs Killingly vs Griswold vs Bloomfield
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 renters (38.1% rent).
Killingly has the youngest population (median age 39.5).
Griswold has the most homeowners (73.3%).
Bloomfield has the most people working from home (18.2%).
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 | Griswold | Bloomfield |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 12,487 |
17,867 |
11,530Lowest |
21,754Highest |
| 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 |
48.1±3.9 17% above CT |
48.4±3.3Highest 18% above CT |
| Bloomfield and Griswold 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% |
18.5%±3.7 CT: 20.2% |
13.7%±2.1Lowest CT: 20.2% |
| Killingly and Griswold 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%±2.4 CT: 18.5% |
17.8%±3.5Lowest CT: 18.5% |
27.3%±2.6Highest CT: 18.5% |
| Bloomfield 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% CT: 42.5% |
22.9% CT: 42.5% |
19.9%Lowest CT: 42.5% |
40.8%Highest CT: 42.5% |
| Enrolled in collegeshare of residents | 5.9%±2 CT: 7.1% |
5.4%±1.9 CT: 7.1% |
1.8%±1.1Lowest CT: 7.1% |
6.6%±1.8Highest 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±$11k 17% below CT |
$84,350±$8k 12% below CT |
$78,719±$11kLowest 18% below CT |
$98,725±$14kHighest 3% above CT |
| Bloomfield 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 |
$288,600±$15kHighest 21% below CT |
$275,900±$42k 25% below CT |
$286,900±$11k 22% below CT |
| Killingly and Bloomfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Rentmedian gross, monthly | $1,452±$95 about the CT average |
$1,044±$141Lowest 30% below CT |
$1,177±$65 21% below CT |
$1,881±$175Highest 26% above CT |
| Property taxmedian, yearly | $5,510 17% below CT |
$3,922Lowest 41% below CT |
$4,628 30% below CT |
$5,795Highest 13% below CT |
| Renters paying 30%+of income on rent | 53.9%±12.6 CT: 52.6% |
42.8%±10.9Lowest CT: 52.6% |
57.5%±15.5Highest CT: 52.6% |
52.6%±11.2 CT: 52.6% |
| Griswold 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% |
11.4%Highest CT: 10% |
7.6% CT: 10% |
5.8%Lowest CT: 10% |
| Housing | ||||
| Homeownersof occupied homes | 61.9%Lowest CT: 66.5% |
71.6% CT: 66.5% |
73.3%Highest CT: 66.5% |
71.1% CT: 66.5% |
| Typical home builtmedian year | 1967Lowest same as CT |
1968 1 yr newer than CT |
1977Highest 10 yrs newer than CT |
1970 3 yrs newer than CT |
| Getting to work | ||||
| Average commuteone way | 27 min about the CT average |
28 min 5% above CT |
31 minHighest 17% above CT |
23 minLowest 12% below CT |
| Work from home | 15.1%±4.8 CT: 16% |
11.1%±2.3 CT: 16% |
9%±3.6Lowest CT: 16% |
18.2%±3.1Highest CT: 16% |
| Bloomfield 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 | #118 of 149 in CT | #139 of 149 in CT |
| School district | Derby School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Griswold School District | Bloomfield School District · Capitol Region Education Council |
| High school in town | Derby High School | Killingly High School | Griswold High School | Academy of International Studies 6-12 |
| Students per teacherat that high school | 9.7Lowest |
11.1 |
11.5Highest |
10.1 |
| 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.