Compare towns
Grantham vs Killingly vs Plainfield vs Putnam
Cost, people, housing, commute and schools, side by side, each benchmarked against the U.S..
What stands out worked out from the figures below
Grantham has the most homeowners (100%).
Killingly has the most kids (19.8% under 18).
Plainfield has the youngest population (median age 37).
Putnam has the most renters (40.2% rent).
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 | Grantham | Killingly | Plainfield | Putnam |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 3,465Lowest |
17,867Highest |
15,141 |
9,292 |
| Growth since 20102010 → 2020 census | +14% U.S.: +7.4% |
— | — | — |
| Median age | 50.4±7.5Highest 30% above U.S. |
39.5±3 about the U.S. average |
37±4.5Lowest 5% below U.S. |
43.7±3 12% above U.S. |
| Grantham and Putnam are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 19.1%±6.6 U.S.: 22% |
19.8%±2.3Highest U.S.: 22% |
19.4%±2.6 U.S.: 22% |
18.6%±3.6Lowest 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+ | 17%±6.9 U.S.: 17.2% |
19.7%±2.4Highest U.S.: 17.2% |
16.6%±2.4Lowest U.S.: 17.2% |
18.5%±3.1 U.S.: 17.2% |
| Killingly and Putnam are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 59.6%Highest U.S.: 35.7% |
22.9% U.S.: 35.7% |
15%Lowest U.S.: 35.7% |
20% U.S.: 35.7% |
| Enrolled in collegeshare of residents | 4.8%±6 U.S.: 6.4% |
5.4%±1.9 U.S.: 6.4% |
5.6%±1.8Highest U.S.: 6.4% |
3.9%±1.4Lowest U.S.: 6.4% |
| Plainfield and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Cost of living | ||||
| Household incomemedian | $106,403±$54kHighest 32% above U.S. |
$84,350±$8k 4% above U.S. |
$76,993±$8k 5% below U.S. |
$70,561±$7kLowest 13% below U.S. |
| Grantham and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $343,100±$39kHighest 3% above U.S. |
$288,600±$15k 13% below U.S. |
$272,100±$16k 18% below U.S. |
$269,200±$11kLowest 19% below U.S. |
| Grantham and Killingly 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±$70Highest 15% below U.S. |
$1,149±$44 19% below U.S. |
| Plainfield and Putnam are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Property taxmedian, yearly | $7,605Highest 144% above U.S. |
$3,922 26% above U.S. |
$4,209 35% above U.S. |
$3,860Lowest 24% above U.S. |
| Renters paying 30%+of income on rent | — | 42.8%±10.9Highest U.S.: 51.1% |
39.8%±9.5 U.S.: 51.1% |
37.7%±11.6Lowest U.S.: 51.1% |
| Killingly and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 0%Lowest U.S.: 12.5% |
11.4% U.S.: 12.5% |
8.7% U.S.: 12.5% |
11.5%Highest U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 100%Highest U.S.: 65.2% |
71.6% U.S.: 65.2% |
73.6% U.S.: 65.2% |
59.8%Lowest U.S.: 65.2% |
| Typical home builtmedian year | 1987Highest 7 yrs newer than U.S. |
1968 12 yrs older than U.S. |
1971 9 yrs older than U.S. |
1961Lowest 19 yrs older than U.S. |
| Getting to work | ||||
| Average commuteone way | 23 minLowest 15% below U.S. |
28 minHighest 6% above U.S. |
27 min about the U.S. average |
25 min 6% below U.S. |
| Work from home | 13.8%±6.2Highest U.S.: 15.1% |
11.1%±2.3 U.S.: 15.1% |
10%±4 U.S.: 15.1% |
9%±2.8Lowest U.S.: 15.1% |
| Grantham and Killingly 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 | #6 of 120 in NH | #136 of 149 in CT | #131 of 149 in CT | #128 of 149 in CT |
| School district | Grantham School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Plainfield School District | Putnam School District |
| High school in town | None in town | Killingly High School | Plainfield High School | Putnam High School |
| Students per teacherat that high school | — | 11.1Highest |
10.3 |
9.5Lowest |
| 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.



