Compare towns
Groton vs Derby vs Ansonia
Cost, people, housing, commute and schools, side by side, each benchmarked against Connecticut.
What stands out worked out from the figures below
Groton has the shortest commute (18 min average).
Derby has the most people working from home (15.1%).
Ansonia has grown the fastest since 2010 (-1.7%).
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 | Groton | Derby | Ansonia |
|---|---|---|---|
| Your priorities | |||
| People | |||
| Population | 9,490Lowest |
12,487 |
19,033Highest |
| Growth since 20102010 → 2020 census | -9.6%Lowest CT: +0.9% |
-4.5% CT: +0.9% |
-1.7%Highest CT: +0.9% |
| Median age | 39±3.7Lowest 5% below CT |
46.4±3.1Highest 13% above CT |
40.1±1.6 about the CT average |
| Kids under 18 | 15.7%±3.5 CT: 20.2% |
14.6%±2.9Lowest CT: 20.2% |
18.3%±2.8Highest CT: 20.2% |
| Ansonia and Groton are within the Census margin of error here, so we can’t say which is really higher. | |||
| Age 65+ | 16.2%±2.7Lowest CT: 18.5% |
21.1%±3.9Highest CT: 18.5% |
18.1%±2.7 CT: 18.5% |
| Derby and Ansonia are within the Census margin of error here, so we can’t say which is really higher. | |||
| Bachelor’s degree+adults 25+ | 38.8%Highest CT: 42.5% |
35.6% CT: 42.5% |
21.9%Lowest CT: 42.5% |
| Enrolled in collegeshare of residents | 4.2%±1.7Lowest CT: 7.1% |
5.9%±2 CT: 7.1% |
6.2%±1.8Highest 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 | $79,577±$8k 17% below CT |
$79,500±$11kLowest 17% below CT |
$85,877±$10kHighest 10% below CT |
| Ansonia and Groton are within the Census margin of error here, so we can’t say which is really higher. | |||
| Home valuemedian, owner-occupied | $306,600±$26kHighest 16% below CT |
$256,700±$21kLowest 30% below CT |
$287,200±$14k 22% below CT |
| Groton and Ansonia are within the Census margin of error here, so we can’t say which is really higher. | |||
| Rentmedian gross, monthly | $1,250±$98Lowest 16% below CT |
$1,452±$95 about the CT average |
$1,476±$121Highest about the CT average |
| Ansonia and Derby are within the Census margin of error here, so we can’t say which is really higher. | |||
| Property taxmedian, yearly | $4,411Lowest 34% below CT |
$5,510Highest 17% below CT |
$5,446 18% below CT |
| Renters paying 30%+of income on rent | 46.5%±11.7 CT: 52.6% |
53.9%±12.6Highest CT: 52.6% |
39.7%±10Lowest CT: 52.6% |
| Derby and Groton are within the Census margin of error here, so we can’t say which is really higher. | |||
| Below poverty line | 18.6%Highest CT: 10% |
10.8% CT: 10% |
9.4%Lowest CT: 10% |
| Housing | |||
| Homeownersof occupied homes | 45.4%Lowest CT: 66.5% |
61.9%Highest CT: 66.5% |
58.1% CT: 66.5% |
| Typical home builtmedian year | 1971Highest 4 yrs newer than CT |
1967 same as CT |
1954Lowest 13 yrs older than CT |
| Getting to work | |||
| Average commuteone way | 18 minLowest 34% below CT |
27 minHighest about the CT average |
27 min about the CT average |
| Work from home | 4.8%±2Lowest CT: 16% |
15.1%±4.8Highest CT: 16% |
9.1%±2.9 CT: 16% |
| Derby and Ansonia 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 | #142 of 149 in CT |
| School district | — | Derby School District | Connecticut Technical Education and Career System · Ansonia School District |
| High school in town | — | Derby High School | Emmett O'Brien Technical High School |
| Students per teacherat that high school | — | 9.7Lowest |
12.2Highest |
| On TownTapestry | |||
| Old photos in History | 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.