Compare towns
Plainfield vs Killingly vs Groton
Cost, people, housing, commute and schools, side by side, each benchmarked against the U.S..
What stands out worked out from the figures below
Plainfield has the youngest population (median age 37).
Killingly has the most renters (28.4% rent).
Groton has the most expensive homes ($743k median).
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 | Killingly | Groton |
|---|---|---|---|
| Your priorities | |||
| People | |||
| Population | 15,141 |
17,867Highest |
11,390Lowest |
| Growth since 20102010 → 2020 census | — | — | +6.3% U.S.: +7.4% |
| Median age | 37±4.5Lowest 5% below U.S. |
39.5±3 about the U.S. average |
41.4±2.7Highest 6% above U.S. |
| Groton and Killingly are within the Census margin of error here, so we can’t say which is really higher. | |||
| Kids under 18 | 19.4%±2.6Lowest U.S.: 22% |
19.8%±2.3 U.S.: 22% |
28.3%±4.9Highest U.S.: 22% |
| Age 65+ | 16.6%±2.4Lowest U.S.: 17.2% |
19.7%±2.4Highest U.S.: 17.2% |
17.3%±2.8 U.S.: 17.2% |
| Killingly and Groton are within the Census margin of error here, so we can’t say which is really higher. | |||
| Bachelor’s degree+adults 25+ | 15%Lowest U.S.: 35.7% |
22.9% U.S.: 35.7% |
70.1%Highest U.S.: 35.7% |
| Enrolled in collegeshare of residents | 5.6%±1.8Highest U.S.: 6.4% |
5.4%±1.9Lowest U.S.: 6.4% |
5.6%±1.9Highest U.S.: 6.4% |
| Cost of living | |||
| Household incomemedian | $76,993±$8kLowest 5% below U.S. |
$84,350±$8k 4% above U.S. |
$192,958±$27kHighest 139% above U.S. |
| Home valuemedian, owner-occupied | $272,100±$16kLowest 18% below U.S. |
$288,600±$15k 13% below U.S. |
$743,400±$46kHighest 123% above U.S. |
| Rentmedian gross, monthly | $1,204±$70 15% below U.S. |
$1,044±$141Lowest 26% below U.S. |
$1,458±$335Highest 3% above U.S. |
| 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 35% above U.S. |
$3,922Lowest 26% above U.S. |
$10,000+Highest at least 221% above U.S. |
| Renters paying 30%+of income on rent | 39.8%±9.5Lowest U.S.: 51.1% |
42.8%±10.9 U.S.: 51.1% |
43.8%±17Highest U.S.: 51.1% |
| 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% U.S.: 12.5% |
11.4%Highest U.S.: 12.5% |
3.8%Lowest U.S.: 12.5% |
| Housing | |||
| Homeownersof occupied homes | 73.6% U.S.: 65.2% |
71.6%Lowest U.S.: 65.2% |
88.8%Highest U.S.: 65.2% |
| Typical home builtmedian year | 1971 9 yrs older than U.S. |
1968Lowest 12 yrs older than U.S. |
1988Highest 8 yrs newer than U.S. |
| Getting to work | |||
| Average commuteone way | 27 minLowest about the U.S. average |
28 min 6% above U.S. |
32 minHighest 22% above U.S. |
| Work from home | 10%±4Lowest U.S.: 15.1% |
11.1%±2.3 U.S.: 15.1% |
27.5%±5.8Highest U.S.: 15.1% |
| Schools | |||
| Public school scoresrank in state, math + reading | #131 of 149 in CT | #136 of 149 in CT | #39 of 282 in MA |
| School district | Plainfield School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Groton-Dunstable |
| High school in town | Plainfield High School | Killingly High School | Groton Dunstable Regional |
| Students per teacherat that high school | 10.3Lowest |
11.1 |
13.7Highest |
| On TownTapestry | |||
| Old photos in History | 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.