Compare towns
Killingly vs Groton vs Millis vs Plainfield
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).
Groton has the most people working from home (27.5%).
Millis has the oldest population (median age 46.4).
Plainfield has the youngest population (median age 37).
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 | Groton | Millis | Plainfield |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 17,867Highest |
11,390 |
8,888Lowest |
15,141 |
| Growth since 20102010 → 2020 census | — | +6.3%Lowest U.S.: +7.4% |
+7.2%Highest U.S.: +7.4% |
— |
| Median age | 39.5±3 about the U.S. average |
41.4±2.7 6% above U.S. |
46.4±3Highest 19% above U.S. |
37±4.5Lowest 5% below U.S. |
| Millis and Groton 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% |
28.3%±4.9Highest U.S.: 22% |
18.4%±2.8Lowest U.S.: 22% |
19.4%±2.6 U.S.: 22% |
| Age 65+ | 19.7%±2.4 U.S.: 17.2% |
17.3%±2.8 U.S.: 17.2% |
23.5%±3.9Highest U.S.: 17.2% |
16.6%±2.4Lowest U.S.: 17.2% |
| Millis 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% |
70.1%Highest U.S.: 35.7% |
54.5% U.S.: 35.7% |
15%Lowest U.S.: 35.7% |
| Enrolled in collegeshare of residents | 5.4%±1.9 U.S.: 6.4% |
5.6%±1.9Highest U.S.: 6.4% |
4.9%±1.6Lowest U.S.: 6.4% |
5.6%±1.8Highest U.S.: 6.4% |
| Cost of living | ||||
| Household incomemedian | $84,350±$8k 4% above U.S. |
$192,958±$27kHighest 139% above U.S. |
$155,996±$9k 93% above U.S. |
$76,993±$8kLowest 5% below U.S. |
| Home valuemedian, owner-occupied | $288,600±$15k 13% below U.S. |
$743,400±$46kHighest 123% above U.S. |
$603,500±$31k 81% above U.S. |
$272,100±$16kLowest 18% below U.S. |
| Rentmedian gross, monthly | $1,044±$141Lowest 26% below U.S. |
$1,458±$335 3% above U.S. |
$1,696±$279Highest 20% above U.S. |
$1,204±$70 15% below U.S. |
| Millis and Groton are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Property taxmedian, yearly | $3,922Lowest 26% above U.S. |
$10,000+Highest at least 221% above U.S. |
$9,344 200% above U.S. |
$4,209 35% above U.S. |
| Renters paying 30%+of income on rent | 42.8%±10.9 U.S.: 51.1% |
43.8%±17 U.S.: 51.1% |
56.5%±16.6Highest U.S.: 51.1% |
39.8%±9.5Lowest U.S.: 51.1% |
| Millis and Groton 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% |
3.8%Lowest U.S.: 12.5% |
4.8% U.S.: 12.5% |
8.7% U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 71.6%Lowest U.S.: 65.2% |
88.8%Highest U.S.: 65.2% |
83.2% U.S.: 65.2% |
73.6% U.S.: 65.2% |
| Typical home builtmedian year | 1968Lowest 12 yrs older than U.S. |
1988Highest 8 yrs newer than U.S. |
1974 6 yrs older than U.S. |
1971 9 yrs older than U.S. |
| Getting to work | ||||
| Average commuteone way | 28 min 6% above U.S. |
32 minHighest 22% above U.S. |
31 min 16% above U.S. |
27 minLowest about the U.S. average |
| Work from home | 11.1%±2.3 U.S.: 15.1% |
27.5%±5.8Highest U.S.: 15.1% |
17.5%±4.2 U.S.: 15.1% |
10%±4Lowest U.S.: 15.1% |
| Groton and Millis 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 | #39 of 282 in MA | #63 of 282 in MA | #131 of 149 in CT |
| School district | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Groton-Dunstable | Millis | Plainfield School District |
| High school in town | Killingly High School | Groton Dunstable Regional | Millis High School | Plainfield High School |
| Students per teacherat that high school | 11.1 |
13.7Highest |
10.7 |
10.3Lowest |
| 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.