Compare towns
Plainville vs Killingly vs Smithfield 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
Plainville has the shortest commute (21 min average).
Killingly has the most kids (19.8% under 18).
Smithfield has the most expensive homes ($446k median).
Plymouth has the oldest population (median age 44.6).
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 | Plainville | Killingly | Smithfield | Plymouth |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 17,551 |
17,867 |
22,233Highest |
11,746Lowest |
| Growth since 20102010 → 2020 census | — | — | +3.2% U.S.: +7.4% |
— |
| Median age | 44.3±1.5 14% above U.S. |
39.5±3Lowest about the U.S. average |
41.8±2.6 7% above U.S. |
44.6±2.8Highest 15% above U.S. |
| Plymouth and Plainville are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 15.6%±2.3Lowest U.S.: 22% |
19.8%±2.3Highest U.S.: 22% |
16.9%±2.4 U.S.: 22% |
17.6%±2.5 U.S.: 22% |
| Killingly and Plymouth are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Age 65+ | 20.1%±2.8 U.S.: 17.2% |
19.7%±2.4 U.S.: 17.2% |
21.1%±2.1Highest U.S.: 17.2% |
18.9%±2.4Lowest U.S.: 17.2% |
| Smithfield and Plainville are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 30% U.S.: 35.7% |
22.9%Lowest U.S.: 35.7% |
40%Highest U.S.: 35.7% |
29.3% U.S.: 35.7% |
| Enrolled in collegeshare of residents | 6.2%±1.6 U.S.: 6.4% |
5.4%±1.9 U.S.: 6.4% |
16.7%±0.9Highest U.S.: 6.4% |
4.7%±1.6Lowest U.S.: 6.4% |
| Cost of living | ||||
| Household incomemedian | $84,343±$7kLowest 4% above U.S. |
$84,350±$8k 4% above U.S. |
$102,077±$8kHighest 26% above U.S. |
$94,514±$14k 17% above U.S. |
| Smithfield and Plymouth are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $254,000±$14kLowest 24% below U.S. |
$288,600±$15k 13% below U.S. |
$446,400±$12kHighest 34% above U.S. |
$275,000±$14k 17% below U.S. |
| Rentmedian gross, monthly | $1,126±$147 20% below U.S. |
$1,044±$141 26% below U.S. |
$1,016±$241Lowest 28% below U.S. |
$1,276±$132Highest 10% below U.S. |
| Plymouth and Plainville are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Property taxmedian, yearly | $4,798 54% above U.S. |
$3,922Lowest 26% above U.S. |
$5,207 67% above U.S. |
$5,819Highest 87% above U.S. |
| Renters paying 30%+of income on rent | 40.3%±12.4Lowest U.S.: 51.1% |
42.8%±10.9 U.S.: 51.1% |
57.1%±17.7 U.S.: 51.1% |
57.9%±26.1Highest U.S.: 51.1% |
| Plymouth and Smithfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 6.5% U.S.: 12.5% |
11.4%Highest U.S.: 12.5% |
6.2%Lowest U.S.: 12.5% |
8.5% U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 67.7%Lowest U.S.: 65.2% |
71.6% U.S.: 65.2% |
81.6%Highest U.S.: 65.2% |
76.7% U.S.: 65.2% |
| Typical home builtmedian year | 1971 9 yrs older than U.S. |
1968 12 yrs older than U.S. |
1976Highest 4 yrs older than U.S. |
1965Lowest 15 yrs older than U.S. |
| Getting to work | ||||
| Average commuteone way | 21 minLowest 20% below U.S. |
28 min 6% above U.S. |
25 min 7% below U.S. |
29 minHighest 8% above U.S. |
| Work from home | 10.7%±2Lowest U.S.: 15.1% |
11.1%±2.3 U.S.: 15.1% |
14%±3.1Highest U.S.: 15.1% |
13.4%±5.1 U.S.: 15.1% |
| Smithfield and Plymouth 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 | #89 of 149 in CT | #136 of 149 in CT | #8 of 38 in RI | #86 of 149 in CT |
| School district | Judicial Centers · Plainville School District | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Smithfield | Plymouth School District |
| High school in town | Plainville High School | Killingly High School | Smithfield High School | Terryville High School |
| Students per teacherat that high school | 11.4 |
11.1 |
11.8Highest |
10.7Lowest |
| On TownTapestry | ||||
| Old photos in History | 6 photos → | 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.



