Compare towns

Plainfield vs Kennebunk vs Grantham

Cost, people, housing, commute and schools, side by side, each benchmarked against the U.S..

What stands out worked out from the figures below

Plainfield has the youngest population (median age 38.9).
Kennebunk has the most people working from home (32.5%).
Grantham has grown the fastest since 2010 (+14%).

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.

MeasurePlainfieldKennebunkGrantham
People
Population
2,522Lowest
11,820Highest
3,465
Growth since 20102010 → 2020 census
+4%Lowest
U.S.: +7.4%
+6.8%
U.S.: +7.4%
+14%Highest
U.S.: +7.4%
Median age
38.9±6.5Lowest
about the U.S. average
54.6±3.3Highest
40% above U.S.
50.4±7.5
30% above U.S.
Kennebunk and Grantham are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18
23.4%±5.8Highest
U.S.: 22%
17.7%±3Lowest
U.S.: 22%
19.1%±6.6
U.S.: 22%
Plainfield and Grantham are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
19.8%±4.5
U.S.: 17.2%
30%±4Highest
U.S.: 17.2%
17%±6.9Lowest
U.S.: 17.2%
Bachelor’s degree+adults 25+
46.7%Lowest
U.S.: 35.7%
51.2%
U.S.: 35.7%
59.6%Highest
U.S.: 35.7%
Enrolled in collegeshare of residents
4.8%±2.3Highest
U.S.: 6.4%
2.7%±1.4Lowest
U.S.: 6.4%
4.8%±6Highest
U.S.: 6.4%
Cost of living
Household incomemedian
$122,656±$13kHighest
52% above U.S.
$107,804±$8k
34% above U.S.
$106,403±$54kLowest
32% above U.S.
Plainfield and Kennebunk are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$442,400±$47k
33% above U.S.
$487,700±$21kHighest
47% above U.S.
$343,100±$39kLowest
3% above U.S.
Kennebunk and Plainfield are within the Census margin of error here, so we can’t say which is really higher.
Rentmedian gross, monthly
$1,674±$181Highest
18% above U.S.
$1,425±$290Lowest
about the U.S. average
—
Plainfield and Kennebunk are within the Census margin of error here, so we can’t say which is really higher.
Property taxmedian, yearly
$7,904Highest
153% above U.S.
$4,999Lowest
60% above U.S.
$7,605
144% above U.S.
Renters paying 30%+of income on rent
31.8%±23.1Lowest
U.S.: 51.1%
37.1%±10.9Highest
U.S.: 51.1%
—
Kennebunk and Plainfield are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
5.2%
U.S.: 12.5%
7.3%Highest
U.S.: 12.5%
0%Lowest
U.S.: 12.5%
Housing
Homeownersof occupied homes
87.3%
U.S.: 65.2%
80.6%Lowest
U.S.: 65.2%
100%Highest
U.S.: 65.2%
Typical home builtmedian year
1977Lowest
3 yrs older than U.S.
1983
3 yrs newer than U.S.
1987Highest
7 yrs newer than U.S.
Getting to work
Average commuteone way
22 minLowest
17% below U.S.
27 minHighest
about the U.S. average
23 min
15% below U.S.
Work from home
18.1%±8.5
U.S.: 15.1%
32.5%±7.6Highest
U.S.: 15.1%
13.8%±6.2Lowest
U.S.: 15.1%
Kennebunk and Plainfield 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 #19 of 120 in NH #9 of 133 in ME #6 of 120 in NH
School district Plainfield School District RSU 21 Grantham School District
High school in town None in town Kennebunk High School None in town
Students per teacherat that high school —
11.6
—
On TownTapestry
Old photos in Our Story 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.