Compare towns
Killingly vs Mendon vs Griswold 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
Killingly has the youngest population (median age 39.5).
Mendon has the most expensive homes ($616k median).
Griswold has the oldest population (median age 48.1).
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 | Killingly | Mendon | Griswold | Putnam |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 17,867Highest |
6,325Lowest |
11,530 |
9,292 |
| Growth since 20102010 → 2020 census | — | +6.7% U.S.: +7.4% |
— | — |
| Median age | 39.5±3Lowest about the U.S. average |
44.1±4.4 13% above U.S. |
48.1±3.9Highest 24% above U.S. |
43.7±3 12% above U.S. |
| Griswold and Mendon 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% |
22.8%±6.2Highest U.S.: 22% |
18.5%±3.7Lowest U.S.: 22% |
18.6%±3.6 U.S.: 22% |
| Mendon 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% |
14.7%±3.4Lowest U.S.: 17.2% |
17.8%±3.5 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+ | 22.9% U.S.: 35.7% |
46.9%Highest U.S.: 35.7% |
19.9%Lowest U.S.: 35.7% |
20% U.S.: 35.7% |
| Enrolled in collegeshare of residents | 5.4%±1.9 U.S.: 6.4% |
6.8%±2.5Highest U.S.: 6.4% |
1.8%±1.1Lowest U.S.: 6.4% |
3.9%±1.4 U.S.: 6.4% |
| Mendon and Killingly 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. |
$132,256±$33kHighest 64% above U.S. |
$78,719±$11k about the U.S. average |
$70,561±$7kLowest 13% below U.S. |
| Home valuemedian, owner-occupied | $288,600±$15k 13% below U.S. |
$616,000±$37kHighest 85% above U.S. |
$275,900±$42k 17% below U.S. |
$269,200±$11kLowest 19% below U.S. |
| Rentmedian gross, monthly | $1,044±$141Lowest 26% below U.S. |
$1,840±$196Highest 30% above U.S. |
$1,177±$65 17% below U.S. |
$1,149±$44 19% below U.S. |
| Property taxmedian, yearly | $3,922 26% above U.S. |
$7,213Highest 131% above U.S. |
$4,628 48% above U.S. |
$3,860Lowest 24% above U.S. |
| Renters paying 30%+of income on rent | 42.8%±10.9 U.S.: 51.1% |
78.7%±26Highest U.S.: 51.1% |
57.5%±15.5 U.S.: 51.1% |
37.7%±11.6Lowest U.S.: 51.1% |
| Mendon and Griswold are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 11.4% U.S.: 12.5% |
7.1%Lowest U.S.: 12.5% |
7.6% U.S.: 12.5% |
11.5%Highest U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 71.6% U.S.: 65.2% |
86.9%Highest U.S.: 65.2% |
73.3% U.S.: 65.2% |
59.8%Lowest U.S.: 65.2% |
| Typical home builtmedian year | 1968 12 yrs older than U.S. |
1985Highest 5 yrs newer than U.S. |
1977 3 yrs older than U.S. |
1961Lowest 19 yrs older than U.S. |
| Getting to work | ||||
| Average commuteone way | 28 min 6% above U.S. |
30 min 14% above U.S. |
31 minHighest 17% above U.S. |
25 minLowest 6% below U.S. |
| Work from home | 11.1%±2.3 U.S.: 15.1% |
15.1%±5.7Highest U.S.: 15.1% |
9%±3.6Lowest U.S.: 15.1% |
9%±2.8Lowest U.S.: 15.1% |
| Mendon 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 | #136 of 149 in CT | #210 of 282 in MA | #118 of 149 in CT | #128 of 149 in CT |
| School district | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Mendon-Upton | Griswold School District | Putnam School District |
| High school in town | Killingly High School | None in town | Griswold High School | Putnam High School |
| Students per teacherat that high school | 11.1 |
— | 11.5Highest |
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.



