Compare towns
Killingly vs Plainfield vs Northfield 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 most renters (28.4% rent).
Plainfield has the youngest population (median age 37).
Northfield has the oldest population (median age 48.9).
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 | Plainfield | Northfield | Seymour |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 17,867Highest |
15,141 |
2,872Lowest |
16,889 |
| Growth since 20102010 → 2020 census | — | — | -5.5% U.S.: +7.4% |
— |
| Median age | 39.5±3 about the U.S. average |
37±4.5Lowest 5% below U.S. |
48.9±4.2Highest 26% above U.S. |
41.6±3 7% above U.S. |
| Kids under 18 | 19.8%±2.3Highest U.S.: 22% |
19.4%±2.6 U.S.: 22% |
14.8%±4.1Lowest U.S.: 22% |
19.3%±3.9 U.S.: 22% |
| Killingly and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Age 65+ | 19.7%±2.4 U.S.: 17.2% |
16.6%±2.4Lowest U.S.: 17.2% |
25.5%±5.1Highest U.S.: 17.2% |
16.8%±2.4 U.S.: 17.2% |
| Northfield and Killingly 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% |
15%Lowest U.S.: 35.7% |
42.4%Highest U.S.: 35.7% |
33.3% U.S.: 35.7% |
| Enrolled in collegeshare of residents | 5.4%±1.9 U.S.: 6.4% |
5.6%±1.8 U.S.: 6.4% |
4.4%±3Lowest 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. |
$76,993±$8kLowest 5% below U.S. |
$103,375±$10k 28% above U.S. |
$107,708±$15kHighest 33% above U.S. |
| Seymour and Northfield 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. |
$272,100±$16kLowest 18% below U.S. |
$375,800±$31kHighest 13% above U.S. |
$370,000±$19k 11% above U.S. |
| Northfield and Seymour are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Rentmedian gross, monthly | $1,044±$141Lowest 26% below U.S. |
$1,204±$70 15% below U.S. |
$1,142±$200 19% below U.S. |
$1,608±$86Highest 14% above U.S. |
| Property taxmedian, yearly | $3,922Lowest 26% above U.S. |
$4,209 35% above U.S. |
$4,594 47% above U.S. |
$6,635Highest 113% above U.S. |
| Renters paying 30%+of income on rent | 42.8%±10.9 U.S.: 51.1% |
39.8%±9.5Lowest U.S.: 51.1% |
49.2%±25.9Highest U.S.: 51.1% |
45.2%±17.3 U.S.: 51.1% |
| Northfield 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% |
8.7% U.S.: 12.5% |
6.8% U.S.: 12.5% |
6.7%Lowest U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 71.6%Lowest U.S.: 65.2% |
73.6% U.S.: 65.2% |
85.1%Highest U.S.: 65.2% |
74.2% U.S.: 65.2% |
| Typical home builtmedian year | 1968 12 yrs older than U.S. |
1971 9 yrs older than U.S. |
1962Lowest 18 yrs older than U.S. |
1973Highest 7 yrs older than U.S. |
| Getting to work | ||||
| Average commuteone way | 28 min 6% above U.S. |
27 minLowest about the U.S. average |
31 min 19% above U.S. |
32 minHighest 21% above U.S. |
| Work from home | 11.1%±2.3 U.S.: 15.1% |
10%±4Lowest U.S.: 15.1% |
16.5%±10.3Highest U.S.: 15.1% |
16.4%±3.5 U.S.: 15.1% |
| Northfield and Seymour 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 | #131 of 149 in CT | #231 of 282 in MA | #105 of 149 in CT |
| School district | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Plainfield School District | Pioneer Valley | Seymour School District |
| High school in town | Killingly High School | Plainfield High School | Pioneer Valley Regional | Seymour High School |
| Students per teacherat that high school | 11.1 |
10.3Lowest |
10.7 |
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.