Compare towns
Griswold 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
Griswold has the oldest population (median age 48.1).
Killingly has the shortest commute (28 min average).
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 | Griswold | Killingly | Groton |
|---|---|---|---|
| Your priorities | |||
| People | |||
| Population | 11,530 |
17,867Highest |
11,390Lowest |
| Growth since 20102010 → 2020 census | — | — | +6.3% U.S.: +7.4% |
| Median age | 48.1±3.9Highest 24% above U.S. |
39.5±3Lowest about the U.S. average |
41.4±2.7 6% above U.S. |
| Kids under 18 | 18.5%±3.7Lowest U.S.: 22% |
19.8%±2.3 U.S.: 22% |
28.3%±4.9Highest U.S.: 22% |
| Age 65+ | 17.8%±3.5 U.S.: 17.2% |
19.7%±2.4Highest 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+ | 19.9%Lowest U.S.: 35.7% |
22.9% U.S.: 35.7% |
70.1%Highest U.S.: 35.7% |
| Enrolled in collegeshare of residents | 1.8%±1.1Lowest U.S.: 6.4% |
5.4%±1.9 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 | $78,719±$11kLowest about the U.S. average |
$84,350±$8k 4% above U.S. |
$192,958±$27kHighest 139% above U.S. |
| Home valuemedian, owner-occupied | $275,900±$42kLowest 17% below U.S. |
$288,600±$15k 13% below U.S. |
$743,400±$46kHighest 123% above U.S. |
| Rentmedian gross, monthly | $1,177±$65 17% below U.S. |
$1,044±$141Lowest 26% 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 | $4,628 48% 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 | 57.5%±15.5Highest U.S.: 51.1% |
42.8%±10.9Lowest 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 | 7.6% U.S.: 12.5% |
11.4%Highest U.S.: 12.5% |
3.8%Lowest U.S.: 12.5% |
| Housing | |||
| Homeownersof occupied homes | 73.3% U.S.: 65.2% |
71.6%Lowest U.S.: 65.2% |
88.8%Highest U.S.: 65.2% |
| Typical home builtmedian year | 1977 3 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 | 31 min 17% above U.S. |
28 minLowest 6% above U.S. |
32 minHighest 22% above U.S. |
| Work from home | 9%±3.6Lowest 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 | #118 of 149 in CT | #136 of 149 in CT | #39 of 282 in MA |
| School district | Griswold School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Groton-Dunstable |
| High school in town | Griswold High School | Killingly High School | Groton Dunstable Regional |
| Students per teacherat that high school | 11.5 |
11.1Lowest |
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.