Compare towns
Killingly vs Marlborough vs Plainfield vs Seymour
Cost, people, housing, commute and schools, side by side, each benchmarked against the U.S..
What stands out worked out from the figures below
Killingly has the oldest housing (typical home built 1968).
Marlborough has the most expensive homes ($513k median).
Plainfield has the most affordable homes ($272k median).
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 | Killingly | Marlborough | Plainfield | Seymour |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 17,867 |
41,647Highest |
15,141Lowest |
16,889 |
| Growth since 20102010 → 2020 census | — | +8.6% U.S.: +7.4% |
— | — |
| Median age | 39.5±3 about the U.S. average |
37.5±1.3 4% below U.S. |
37±4.5Lowest 5% below U.S. |
41.6±3Highest 7% above U.S. |
| Seymour and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 19.8%±2.3 U.S.: 22% |
20.8%±2Highest U.S.: 22% |
19.4%±2.6 U.S.: 22% |
19.3%±3.9Lowest U.S.: 22% |
| Marlborough and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Age 65+ | 19.7%±2.4Highest U.S.: 17.2% |
14.9%±1.5Lowest U.S.: 17.2% |
16.6%±2.4 U.S.: 17.2% |
16.8%±2.4 U.S.: 17.2% |
| Killingly and Seymour are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 22.9% U.S.: 35.7% |
40.5%Highest U.S.: 35.7% |
15%Lowest U.S.: 35.7% |
33.3% U.S.: 35.7% |
| Enrolled in collegeshare of residents | 5.4%±1.9 U.S.: 6.4% |
4.2%±1Lowest U.S.: 6.4% |
5.6%±1.8 U.S.: 6.4% |
6.4%±2.1Highest U.S.: 6.4% |
| 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 | $84,350±$8k 4% above U.S. |
$91,968±$9k 14% above U.S. |
$76,993±$8kLowest 5% below U.S. |
$107,708±$15kHighest 33% above U.S. |
| Seymour and Marlborough are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $288,600±$15k 13% below U.S. |
$513,100±$28kHighest 54% above U.S. |
$272,100±$16kLowest 18% below U.S. |
$370,000±$19k 11% above U.S. |
| Rentmedian gross, monthly | $1,044±$141Lowest 26% below U.S. |
$1,871±$123Highest 32% above U.S. |
$1,204±$70 15% below U.S. |
$1,608±$86 14% above U.S. |
| Property taxmedian, yearly | $3,922Lowest 26% above U.S. |
$5,747 84% above U.S. |
$4,209 35% above U.S. |
$6,635Highest 113% above U.S. |
| Renters paying 30%+of income on rent | 42.8%±10.9 U.S.: 51.1% |
58.9%±6.5Highest U.S.: 51.1% |
39.8%±9.5Lowest U.S.: 51.1% |
45.2%±17.3 U.S.: 51.1% |
| Marlborough and Seymour are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 11.4%Highest U.S.: 12.5% |
9.6% U.S.: 12.5% |
8.7% U.S.: 12.5% |
6.7%Lowest U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 71.6% U.S.: 65.2% |
56%Lowest U.S.: 65.2% |
73.6% U.S.: 65.2% |
74.2%Highest U.S.: 65.2% |
| Typical home builtmedian year | 1968Lowest 12 yrs older than U.S. |
1974Highest 6 yrs older than U.S. |
1971 9 yrs older than U.S. |
1973 7 yrs older than U.S. |
| Getting to work | ||||
| Average commuteone way | 28 min 6% above U.S. |
30 min 13% above U.S. |
27 minLowest about the U.S. average |
32 minHighest 21% above U.S. |
| Work from home | 11.1%±2.3 U.S.: 15.1% |
16.2%±2.4 U.S.: 15.1% |
10%±4Lowest U.S.: 15.1% |
16.4%±3.5Highest U.S.: 15.1% |
| Seymour and Marlborough 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 | #136 of 149 in CT | #215 of 282 in MA | #131 of 149 in CT | #105 of 149 in CT |
| School district | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Assabet Valley Regional Vocational Technical · Marlborough | Plainfield School District | Seymour School District |
| High school in town | Killingly High School | Assabet Valley Vocational High School | Plainfield High School | Seymour High School |
| Students per teacherat that high school | 11.1 |
10.1Lowest |
10.3 |
11.8Highest |
| On TownTapestry | ||||
| Old photos in History | None yet | None yet | None yet | None yet |
U.S. 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.