Compare towns
Deep River vs Killingly vs Plainfield vs Seymour
Cost, people, housing, commute and schools, side by side, each benchmarked against Connecticut.
What stands out worked out from the figures below
Deep River has the oldest population (median age 46.2).
Killingly has the most kids (19.8% under 18).
Plainfield has the youngest population (median age 37).
Seymour has the highest household income ($108k).
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 | Deep River | Killingly | Plainfield | Seymour |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 4,458Lowest |
17,867Highest |
15,141 |
16,889 |
| Median age | 46.2±5.6Highest 12% above CT |
39.5±3 4% below CT |
37±4.5Lowest 10% below CT |
41.6±3 about the CT average |
| Deep River and Seymour are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 16.6%±4.7Lowest CT: 20.2% |
19.8%±2.3Highest CT: 20.2% |
19.4%±2.6 CT: 20.2% |
19.3%±3.9 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+ | 22.1%±4.1Highest CT: 18.5% |
19.7%±2.4 CT: 18.5% |
16.6%±2.4Lowest CT: 18.5% |
16.8%±2.4 CT: 18.5% |
| Deep River and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 44.6%Highest CT: 42.5% |
22.9% CT: 42.5% |
15%Lowest CT: 42.5% |
33.3% CT: 42.5% |
| Enrolled in collegeshare of residents | 3.8%±2.2Lowest CT: 7.1% |
5.4%±1.9 CT: 7.1% |
5.6%±1.8 CT: 7.1% |
6.4%±2.1Highest 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 | $90,253±$19k 6% below CT |
$84,350±$8k 12% below CT |
$76,993±$8kLowest 20% below CT |
$107,708±$15kHighest 12% above CT |
| Seymour and Deep River are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $362,200±$26k about the CT average |
$288,600±$15k 21% below CT |
$272,100±$16kLowest 26% below CT |
$370,000±$19kHighest about the CT average |
| Seymour and Deep River are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Rentmedian gross, monthly | $1,221±$185 18% below CT |
$1,044±$141Lowest 30% below CT |
$1,204±$70 19% below CT |
$1,608±$86Highest 8% above CT |
| Property taxmedian, yearly | $6,092 8% below CT |
$3,922Lowest 41% below CT |
$4,209 37% below CT |
$6,635Highest about the CT average |
| Renters paying 30%+of income on rent | 58.2%±22.9Highest CT: 52.6% |
42.8%±10.9 CT: 52.6% |
39.8%±9.5Lowest CT: 52.6% |
45.2%±17.3 CT: 52.6% |
| Deep River and Seymour are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 8.2% CT: 10% |
11.4%Highest CT: 10% |
8.7% CT: 10% |
6.7%Lowest CT: 10% |
| Housing | ||||
| Homeownersof occupied homes | 69.2%Lowest CT: 66.5% |
71.6% CT: 66.5% |
73.6% CT: 66.5% |
74.2%Highest CT: 66.5% |
| Typical home builtmedian year | 1974Highest 7 yrs newer than CT |
1968Lowest 1 yr newer than CT |
1971 4 yrs newer than CT |
1973 6 yrs newer than CT |
| Getting to work | ||||
| Average commuteone way | 24 minLowest 9% below CT |
28 min 5% above CT |
27 min about the CT average |
32 minHighest 21% above CT |
| Work from home | 15.2%±5.6 CT: 16% |
11.1%±2.3 CT: 16% |
10%±4Lowest CT: 16% |
16.4%±3.5Highest CT: 16% |
| Seymour and Deep River 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 | #70 of 149 in CT | #136 of 149 in CT | #131 of 149 in CT | #105 of 149 in CT |
| School district | Deep River School District · Regional School District 04 | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Plainfield School District | Seymour School District |
| High school in town | Valley Regional High School | Killingly High School | Plainfield High School | Seymour High School |
| Students per teacherat that high school | 9.3Lowest |
11.1 |
10.3 |
11.8Highest |
| 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.