Compare towns
Plainfield vs Groton vs Killingly
Cost, people, housing, commute and schools, side by side, each benchmarked against Connecticut.
What stands out worked out from the figures below
Plainfield has the most affordable homes ($272k median).
Groton has the most renters (54.6% rent).
Killingly has the most people working from home (11.1%).
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 | Plainfield | Groton | Killingly |
|---|---|---|---|
| Your priorities | |||
| People | |||
| Population | 15,141 |
9,490Lowest |
17,867Highest |
| Growth since 20102010 → 2020 census | — | -9.6% CT: +0.9% |
— |
| Median age | 37±4.5Lowest 10% below CT |
39±3.7 5% below CT |
39.5±3Highest 4% below CT |
| Killingly and Groton are within the Census margin of error here, so we can’t say which is really higher. | |||
| Kids under 18 | 19.4%±2.6 CT: 20.2% |
15.7%±3.5Lowest CT: 20.2% |
19.8%±2.3Highest CT: 20.2% |
| Killingly and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | |||
| Age 65+ | 16.6%±2.4 CT: 18.5% |
16.2%±2.7Lowest CT: 18.5% |
19.7%±2.4Highest CT: 18.5% |
| Killingly and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | |||
| Bachelor’s degree+adults 25+ | 15%Lowest CT: 42.5% |
38.8%Highest CT: 42.5% |
22.9% CT: 42.5% |
| Enrolled in collegeshare of residents | 5.6%±1.8Highest CT: 7.1% |
4.2%±1.7Lowest CT: 7.1% |
5.4%±1.9 CT: 7.1% |
| Plainfield and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Cost of living | |||
| Household incomemedian | $76,993±$8kLowest 20% below CT |
$79,577±$8k 17% below CT |
$84,350±$8kHighest 12% below CT |
| Killingly and Groton are within the Census margin of error here, so we can’t say which is really higher. | |||
| Home valuemedian, owner-occupied | $272,100±$16kLowest 26% below CT |
$306,600±$26kHighest 16% below CT |
$288,600±$15k 21% below CT |
| Groton and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Rentmedian gross, monthly | $1,204±$70 19% below CT |
$1,250±$98Highest 16% below CT |
$1,044±$141Lowest 30% below CT |
| Groton and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | |||
| Property taxmedian, yearly | $4,209 37% below CT |
$4,411Highest 34% below CT |
$3,922Lowest 41% below CT |
| Renters paying 30%+of income on rent | 39.8%±9.5Lowest CT: 52.6% |
46.5%±11.7Highest CT: 52.6% |
42.8%±10.9 CT: 52.6% |
| Groton and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Below poverty line | 8.7%Lowest CT: 10% |
18.6%Highest CT: 10% |
11.4% CT: 10% |
| Housing | |||
| Homeownersof occupied homes | 73.6%Highest CT: 66.5% |
45.4%Lowest CT: 66.5% |
71.6% CT: 66.5% |
| Typical home builtmedian year | 1971Highest 4 yrs newer than CT |
1971Highest 4 yrs newer than CT |
1968Lowest 1 yr newer than CT |
| Getting to work | |||
| Average commuteone way | 27 min about the CT average |
18 minLowest 34% below CT |
28 minHighest 5% above CT |
| Work from home | 10%±4 CT: 16% |
4.8%±2Lowest CT: 16% |
11.1%±2.3Highest CT: 16% |
| Killingly and Plainfield 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 | #131 of 149 in CT | — | #136 of 149 in CT |
| School district | Plainfield School District | — | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS |
| High school in town | Plainfield High School | — | Killingly High School |
| Students per teacherat that high school | 10.3Lowest |
— | 11.1Highest |
| 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.