Compare towns
Griswold vs Killingly vs Marshfield vs Plymouth
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 youngest population (median age 39.5).
Marshfield has the most expensive homes ($680k median).
Plymouth has the most affordable homes ($275k 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 | Marshfield | Plymouth |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 11,530Lowest |
17,867 |
25,879Highest |
11,746 |
| Growth since 20102010 → 2020 census | — | — | +2.8% U.S.: +7.4% |
— |
| Median age | 48.1±3.9Highest 24% above U.S. |
39.5±3Lowest about the U.S. average |
45.9±2.6 18% above U.S. |
44.6±2.8 15% above U.S. |
| Griswold and Marshfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 18.5%±3.7 U.S.: 22% |
19.8%±2.3Highest U.S.: 22% |
19.6%±2.4 U.S.: 22% |
17.6%±2.5Lowest U.S.: 22% |
| Killingly and Marshfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Age 65+ | 17.8%±3.5Lowest U.S.: 17.2% |
19.7%±2.4 U.S.: 17.2% |
20.2%±2Highest U.S.: 17.2% |
18.9%±2.4 U.S.: 17.2% |
| Marshfield and Killingly 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% |
52.4%Highest U.S.: 35.7% |
29.3% U.S.: 35.7% |
| Enrolled in collegeshare of residents | 1.8%±1.1Lowest U.S.: 6.4% |
5.4%±1.9Highest U.S.: 6.4% |
4%±1.1 U.S.: 6.4% |
4.7%±1.6 U.S.: 6.4% |
| Killingly and Plymouth 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. |
$125,986±$8kHighest 56% above U.S. |
$94,514±$14k 17% above U.S. |
| Home valuemedian, owner-occupied | $275,900±$42k 17% below U.S. |
$288,600±$15k 13% below U.S. |
$680,300±$27kHighest 104% above U.S. |
$275,000±$14kLowest 17% below U.S. |
| Rentmedian gross, monthly | $1,177±$65 17% below U.S. |
$1,044±$141Lowest 26% below U.S. |
$1,772±$123Highest 25% above U.S. |
$1,276±$132 10% below U.S. |
| Property taxmedian, yearly | $4,628 48% above U.S. |
$3,922Lowest 26% above U.S. |
$6,656Highest 113% above U.S. |
$5,819 87% above U.S. |
| Renters paying 30%+of income on rent | 57.5%±15.5 U.S.: 51.1% |
42.8%±10.9Lowest U.S.: 51.1% |
68.1%±10.1Highest U.S.: 51.1% |
57.9%±26.1 U.S.: 51.1% |
| Marshfield and Plymouth are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 7.6%Lowest U.S.: 12.5% |
11.4%Highest U.S.: 12.5% |
8.7% U.S.: 12.5% |
8.5% U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 73.3% U.S.: 65.2% |
71.6%Lowest U.S.: 65.2% |
80.8%Highest U.S.: 65.2% |
76.7% U.S.: 65.2% |
| Typical home builtmedian year | 1977Highest 3 yrs older than U.S. |
1968 12 yrs older than U.S. |
1968 12 yrs older than U.S. |
1965Lowest 15 yrs older than U.S. |
| Getting to work | ||||
| Average commuteone way | 31 min 17% above U.S. |
28 minLowest 6% above U.S. |
35 minHighest 31% above U.S. |
29 min 8% above U.S. |
| Work from home | 9%±3.6Lowest U.S.: 15.1% |
11.1%±2.3 U.S.: 15.1% |
24.8%±4.3Highest U.S.: 15.1% |
13.4%±5.1 U.S.: 15.1% |
| Schools | ||||
| Public school scoresrank in state, math + reading | #118 of 149 in CT | #136 of 149 in CT | #54 of 282 in MA | #86 of 149 in CT |
| School district | Griswold School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Marshfield | Plymouth School District |
| High school in town | Griswold High School | Killingly High School | Marshfield High | Terryville High School |
| Students per teacherat that high school | 11.5Highest |
11.1 |
11.0 |
10.7Lowest |
| On TownTapestry | ||||
| Old photos in History | None yet | None yet | None yet | 6 photos → |
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.



