Compare towns
Killingly vs Griswold 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
Killingly has the shortest commute (28 min average).
Griswold has the oldest population (median age 48.1).
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 | Killingly | Griswold | Groton |
|---|---|---|---|
| Your priorities | |||
| People | |||
| Population | 17,867Highest |
11,530 |
11,390Lowest |
| Growth since 20102010 → 2020 census | — | — | +6.3% U.S.: +7.4% |
| Median age | 39.5±3Lowest about the U.S. average |
48.1±3.9Highest 24% above U.S. |
41.4±2.7 6% above U.S. |
| Kids under 18 | 19.8%±2.3 U.S.: 22% |
18.5%±3.7Lowest U.S.: 22% |
28.3%±4.9Highest U.S.: 22% |
| Age 65+ | 19.7%±2.4Highest U.S.: 17.2% |
17.8%±3.5 U.S.: 17.2% |
17.3%±2.8Lowest U.S.: 17.2% |
| Killingly and Griswold 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% |
19.9%Lowest U.S.: 35.7% |
70.1%Highest U.S.: 35.7% |
| Enrolled in collegeshare of residents | 5.4%±1.9 U.S.: 6.4% |
1.8%±1.1Lowest U.S.: 6.4% |
5.6%±1.9Highest U.S.: 6.4% |
| Groton 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. |
$78,719±$11kLowest about the U.S. average |
$192,958±$27kHighest 139% above U.S. |
| Home valuemedian, owner-occupied | $288,600±$15k 13% below U.S. |
$275,900±$42kLowest 17% below U.S. |
$743,400±$46kHighest 123% above U.S. |
| Rentmedian gross, monthly | $1,044±$141Lowest 26% below U.S. |
$1,177±$65 17% below U.S. |
$1,458±$335Highest 3% above U.S. |
| Groton and Griswold 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. |
$4,628 48% above U.S. |
$10,000+Highest at least 221% above U.S. |
| Renters paying 30%+of income on rent | 42.8%±10.9Lowest U.S.: 51.1% |
57.5%±15.5Highest U.S.: 51.1% |
43.8%±17 U.S.: 51.1% |
| Griswold 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% |
7.6% U.S.: 12.5% |
3.8%Lowest U.S.: 12.5% |
| Housing | |||
| Homeownersof occupied homes | 71.6%Lowest U.S.: 65.2% |
73.3% U.S.: 65.2% |
88.8%Highest U.S.: 65.2% |
| Typical home builtmedian year | 1968Lowest 12 yrs older than U.S. |
1977 3 yrs older than U.S. |
1988Highest 8 yrs newer than U.S. |
| Getting to work | |||
| Average commuteone way | 28 minLowest 6% above U.S. |
31 min 17% above U.S. |
32 minHighest 22% above U.S. |
| Work from home | 11.1%±2.3 U.S.: 15.1% |
9%±3.6Lowest U.S.: 15.1% |
27.5%±5.8Highest U.S.: 15.1% |
| Schools | |||
| Public school scoresrank in state, math + reading | #136 of 149 in CT | #118 of 149 in CT | #39 of 282 in MA |
| School district | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Griswold School District | Groton-Dunstable |
| High school in town | Killingly High School | Griswold High School | Groton Dunstable Regional |
| Students per teacherat that high school | 11.1Lowest |
11.5 |
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.