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.

MeasurePlainvilleKillinglySmithfieldPlymouth
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.