Compare towns

Castleton vs South Berwick

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

What stands out worked out from the figures below

Castleton has the most affordable homes ($225k median).
South Berwick has the most people working from home (17.6%).

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.

MeasureCastletonSouth Berwick
People
Population
4,453Lowest
7,670Highest
Growth since 20102010 → 2020 census
-5.5%Lowest
U.S.: +7.4%
+3.4%Highest
U.S.: +7.4%
Median age
38.3±4.3Lowest
about the U.S. average
39±2.5Highest
about the U.S. average
South Berwick and Castleton are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18
18.8%±6.4Lowest
U.S.: 22%
26.7%±6Highest
U.S.: 22%
South Berwick and Castleton are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
20.7%±4.6Highest
U.S.: 17.2%
15.8%±3Lowest
U.S.: 17.2%
Castleton and South Berwick are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+
37.9%Lowest
U.S.: 35.7%
41.8%Highest
U.S.: 35.7%
Enrolled in collegeshare of residents
19.3%±1.8Highest
U.S.: 6.4%
4.2%±1.9Lowest
U.S.: 6.4%
Cost of living
Household incomemedian
$73,854±$23kLowest
9% below U.S.
$99,572±$13kHighest
23% above U.S.
South Berwick and Castleton are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$224,800±$71kLowest
32% below U.S.
$428,300±$26kHighest
29% above U.S.
Rentmedian gross, monthly
$1,137±$195Lowest
20% below U.S.
$1,726±$83Highest
22% above U.S.
Property taxmedian, yearly
$3,167Lowest
about the U.S. average
$4,956Highest
59% above U.S.
Renters paying 30%+of income on rent
67.7%±21.9Highest
U.S.: 51.1%
53.5%±24.5Lowest
U.S.: 51.1%
Castleton and South Berwick are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
12.5%Highest
U.S.: 12.5%
3.4%Lowest
U.S.: 12.5%
Housing
Homeownersof occupied homes
79%Highest
U.S.: 65.2%
78.3%Lowest
U.S.: 65.2%
Typical home builtmedian year
1974Lowest
6 yrs older than U.S.
1982Highest
2 yrs newer than U.S.
Getting to work
Average commuteone way
19 minLowest
27% below U.S.
27 minHighest
about the U.S. average
Work from home
6.2%±3.9Lowest
U.S.: 15.1%
17.6%±5.8Highest
U.S.: 15.1%
Schools
Public school scoresrank in state, math + reading #39 of 70 in VT #58 of 133 in ME
School district Slate Valley Unified Union School District #62 RSU 35/MSAD 35
High school in town None in town Marshwood High School
Students per teacherat that high school —
13.0
On TownTapestry
Old photos in History 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.