Compare towns
Smithfield vs Killingly vs Plainfield vs Johnston
Cost, people, housing, commute and schools, side by side, each benchmarked against the U.S..
What stands out worked out from the figures below
Smithfield has the most people working from home (14%).
Killingly has the most renters (28.4% rent).
Plainfield has the youngest population (median age 37).
Johnston has the oldest population (median age 44.5).
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 | Smithfield | Killingly | Plainfield | Johnston |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 22,233 |
17,867 |
15,141Lowest |
29,835Highest |
| Growth since 20102010 → 2020 census | +3.2%Highest U.S.: +7.4% |
— | — | +2.8%Lowest U.S.: +7.4% |
| Median age | 41.8±2.6 7% above U.S. |
39.5±3 about the U.S. average |
37±4.5Lowest 5% below U.S. |
44.5±2.5Highest 14% above U.S. |
| Johnston and Smithfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 16.9%±2.4Lowest U.S.: 22% |
19.8%±2.3Highest U.S.: 22% |
19.4%±2.6 U.S.: 22% |
17.5%±2.4 U.S.: 22% |
| Killingly and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Age 65+ | 21.1%±2.1 U.S.: 17.2% |
19.7%±2.4 U.S.: 17.2% |
16.6%±2.4Lowest U.S.: 17.2% |
22.1%±2.6Highest U.S.: 17.2% |
| Johnston and Smithfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 40%Highest U.S.: 35.7% |
22.9% U.S.: 35.7% |
15%Lowest U.S.: 35.7% |
28.9% U.S.: 35.7% |
| Enrolled in collegeshare of residents | 16.7%±0.9Highest U.S.: 6.4% |
5.4%±1.9Lowest U.S.: 6.4% |
5.6%±1.8 U.S.: 6.4% |
6.1%±1.6 U.S.: 6.4% |
| Cost of living | ||||
| Household incomemedian | $102,077±$8kHighest 26% above U.S. |
$84,350±$8k 4% above U.S. |
$76,993±$8kLowest 5% below U.S. |
$91,866±$6k 14% above U.S. |
| Smithfield and Johnston are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $446,400±$12kHighest 34% above U.S. |
$288,600±$15k 13% below U.S. |
$272,100±$16kLowest 18% below U.S. |
$355,500±$13k 7% above U.S. |
| Rentmedian gross, monthly | $1,016±$241Lowest 28% below U.S. |
$1,044±$141 26% below U.S. |
$1,204±$70 15% below U.S. |
$1,275±$132Highest 10% below U.S. |
| Johnston and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Property taxmedian, yearly | $5,207Highest 67% above U.S. |
$3,922Lowest 26% above U.S. |
$4,209 35% above U.S. |
$4,614 48% above U.S. |
| Renters paying 30%+of income on rent | 57.1%±17.7Highest U.S.: 51.1% |
42.8%±10.9 U.S.: 51.1% |
39.8%±9.5 U.S.: 51.1% |
38.1%±8.7Lowest U.S.: 51.1% |
| Smithfield and Killingly are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 6.2%Lowest U.S.: 12.5% |
11.4%Highest U.S.: 12.5% |
8.7% U.S.: 12.5% |
7.9% U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 81.6%Highest U.S.: 65.2% |
71.6%Lowest U.S.: 65.2% |
73.6% U.S.: 65.2% |
75.9% U.S.: 65.2% |
| Typical home builtmedian year | 1976Highest 4 yrs older than U.S. |
1968Lowest 12 yrs older than U.S. |
1971 9 yrs older than U.S. |
1968Lowest 12 yrs older than U.S. |
| Getting to work | ||||
| Average commuteone way | 25 min 7% below U.S. |
28 minHighest 6% above U.S. |
27 min about the U.S. average |
24 minLowest 11% below U.S. |
| Work from home | 14%±3.1Highest U.S.: 15.1% |
11.1%±2.3 U.S.: 15.1% |
10%±4 U.S.: 15.1% |
9.9%±2.3Lowest U.S.: 15.1% |
| Smithfield 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 | #8 of 38 in RI | #136 of 149 in CT | #131 of 149 in CT | #32 of 38 in RI |
| School district | Smithfield | Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS | Plainfield School District | Johnston |
| High school in town | Smithfield High School | Killingly High School | Plainfield High School | Johnston Senior High |
| Students per teacherat that high school | 11.8Highest |
11.1 |
10.3Lowest |
10.3Lowest |
| On TownTapestry | ||||
| Old photos in History | None yet | 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.