Compare towns
Seymour vs Plainfield vs Killingly vs Plymouth
Cost, people, housing, commute and schools, side by side, each benchmarked against Connecticut.
What stands out worked out from the figures below
Seymour has the most expensive homes ($370k median).
Plainfield has the youngest population (median age 37).
Killingly has the most renters (28.4% rent).
Plymouth has the oldest population (median age 44.6).
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 | Seymour | Plainfield | Killingly | Plymouth |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 16,889 |
15,141 |
17,867Highest |
11,746Lowest |
| Median age | 41.6±3 about the CT average |
37±4.5Lowest 10% below CT |
39.5±3 4% below CT |
44.6±2.8Highest 9% above CT |
| Plymouth and Seymour are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 19.3%±3.9 CT: 20.2% |
19.4%±2.6 CT: 20.2% |
19.8%±2.3Highest CT: 20.2% |
17.6%±2.5Lowest 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+ | 16.8%±2.4 CT: 18.5% |
16.6%±2.4Lowest CT: 18.5% |
19.7%±2.4Highest CT: 18.5% |
18.9%±2.4 CT: 18.5% |
| Killingly and Plymouth are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 33.3%Highest CT: 42.5% |
15%Lowest CT: 42.5% |
22.9% CT: 42.5% |
29.3% CT: 42.5% |
| Enrolled in collegeshare of residents | 6.4%±2.1Highest CT: 7.1% |
5.6%±1.8 CT: 7.1% |
5.4%±1.9 CT: 7.1% |
4.7%±1.6Lowest CT: 7.1% |
| Seymour and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Cost of living | ||||
| Household incomemedian | $107,708±$15kHighest 12% above CT |
$76,993±$8kLowest 20% below CT |
$84,350±$8k 12% below CT |
$94,514±$14k about the CT average |
| Seymour and Plymouth are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $370,000±$19kHighest about the CT average |
$272,100±$16kLowest 26% below CT |
$288,600±$15k 21% below CT |
$275,000±$14k 25% below CT |
| Rentmedian gross, monthly | $1,608±$86Highest 8% above CT |
$1,204±$70 19% below CT |
$1,044±$141Lowest 30% below CT |
$1,276±$132 14% below CT |
| Property taxmedian, yearly | $6,635Highest about the CT average |
$4,209 37% below CT |
$3,922Lowest 41% below CT |
$5,819 12% below CT |
| Renters paying 30%+of income on rent | 45.2%±17.3 CT: 52.6% |
39.8%±9.5Lowest CT: 52.6% |
42.8%±10.9 CT: 52.6% |
57.9%±26.1Highest CT: 52.6% |
| Plymouth and Seymour are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 6.7%Lowest CT: 10% |
8.7% CT: 10% |
11.4%Highest CT: 10% |
8.5% CT: 10% |
| Housing | ||||
| Homeownersof occupied homes | 74.2% CT: 66.5% |
73.6% CT: 66.5% |
71.6%Lowest CT: 66.5% |
76.7%Highest CT: 66.5% |
| Typical home builtmedian year | 1973Highest 6 yrs newer than CT |
1971 4 yrs newer than CT |
1968 1 yr newer than CT |
1965Lowest 2 yrs older than CT |
| Getting to work | ||||
| Average commuteone way | 32 minHighest 21% above CT |
27 minLowest about the CT average |
28 min 5% above CT |
29 min 8% above CT |
| Work from home | 16.4%±3.5Highest CT: 16% |
10%±4Lowest CT: 16% |
11.1%±2.3 CT: 16% |
13.4%±5.1 CT: 16% |
| Seymour and Plymouth 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 | #105 of 149 in CT | #131 of 149 in CT | #136 of 149 in CT | #86 of 149 in CT |
| School district | Seymour School District | Plainfield School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Plymouth School District |
| High school in town | Seymour High School | Plainfield High School | Killingly High School | Terryville High School |
| Students per teacherat that high school | 11.8Highest |
10.3Lowest |
11.1 |
10.7 |
| 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.



