Compare towns
Harwinton vs Killingly vs Griswold vs Prospect
Cost, people, housing, commute and schools, side by side, each benchmarked against Connecticut.
What stands out worked out from the figures below
Harwinton has the most people working from home (13.5%).
Killingly has the youngest population (median age 39.5).
Griswold has the most affordable homes ($276k median).
Prospect has the most kids (21.4% under 18).
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 | Harwinton | Killingly | Griswold | Prospect |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 5,575Lowest |
17,867Highest |
11,530 |
9,458 |
| Median age | 46.1±4.3 12% above CT |
39.5±3Lowest 4% below CT |
48.1±3.9Highest 17% above CT |
46.8±3.9 14% above CT |
| Griswold and Prospect are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 20%±4.2 CT: 20.2% |
19.8%±2.3 CT: 20.2% |
18.5%±3.7Lowest CT: 20.2% |
21.4%±4.1Highest CT: 20.2% |
| Prospect and Harwinton are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Age 65+ | 22.1%±3.5 CT: 18.5% |
19.7%±2.4 CT: 18.5% |
17.8%±3.5Lowest CT: 18.5% |
24.5%±4.3Highest CT: 18.5% |
| Prospect and Harwinton are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 40.3%Highest CT: 42.5% |
22.9% CT: 42.5% |
19.9%Lowest CT: 42.5% |
40.3%Highest CT: 42.5% |
| Enrolled in collegeshare of residents | 6.7%±2.9Highest CT: 7.1% |
5.4%±1.9 CT: 7.1% |
1.8%±1.1Lowest CT: 7.1% |
3.5%±1.8 CT: 7.1% |
| Harwinton and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Cost of living | ||||
| Household incomemedian | $129,643±$18kHighest 35% above CT |
$84,350±$8k 12% below CT |
$78,719±$11kLowest 18% below CT |
$126,394±$18k 32% above CT |
| Harwinton and Prospect are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $352,100±$16k 4% below CT |
$288,600±$15k 21% below CT |
$275,900±$42kLowest 25% below CT |
$355,400±$21kHighest 3% below CT |
| Prospect and Harwinton are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Rentmedian gross, monthly | $1,504±$200 about the CT average |
$1,044±$141Lowest 30% below CT |
$1,177±$65 21% below CT |
$1,800±$433Highest 21% above CT |
| Prospect and Harwinton are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Property taxmedian, yearly | $5,503 17% below CT |
$3,922Lowest 41% below CT |
$4,628 30% below CT |
$6,504Highest about the CT average |
| Renters paying 30%+of income on rent | 27.8%±27.9Lowest CT: 52.6% |
42.8%±10.9 CT: 52.6% |
57.5%±15.5Highest CT: 52.6% |
45.3%±31.8 CT: 52.6% |
| Griswold and Prospect are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 4.8% CT: 10% |
11.4%Highest CT: 10% |
7.6% CT: 10% |
3.2%Lowest CT: 10% |
| Housing | ||||
| Homeownersof occupied homes | 93% CT: 66.5% |
71.6%Lowest CT: 66.5% |
73.3% CT: 66.5% |
93.5%Highest CT: 66.5% |
| Typical home builtmedian year | 1961Lowest 6 yrs older than CT |
1968 1 yr newer than CT |
1977Highest 10 yrs newer than CT |
1974 7 yrs newer than CT |
| Getting to work | ||||
| Average commuteone way | 26 minLowest 3% below CT |
28 min 5% above CT |
31 minHighest 17% above CT |
28 min 4% above CT |
| Work from home | 13.5%±4.7Highest CT: 16% |
11.1%±2.3 CT: 16% |
9%±3.6Lowest CT: 16% |
10.1%±3.2 CT: 16% |
| Harwinton 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 | #34 of 149 in CT | #136 of 149 in CT | #118 of 149 in CT | #50 of 149 in CT |
| School district | Regional School District 10 | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Griswold School District | Regional School District 16 |
| High school in town | None in town | Killingly High School | Griswold High School | None in town |
| Students per teacherat that high school | — | 11.1Lowest |
11.5Highest |
— |
| On TownTapestry | ||||
| Old photos in History | None yet | None yet | None yet | None yet |
CT 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.



