What stands out worked out from the figures below

South Berwick has the most people working from home (17.6%).

Castleton has the most affordable homes ($225k median).

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.

Raising kidsAffordabilityOwning a homeShort commuteWorking from homeYounger crowdSettled, older crowdGrowing town

Measure	South Berwick	Castleton
People
Population	7,670Highest	4,453Lowest
Growth since 20102010 → 2020 census	+3.4%Highest U.S.: +7.4%	-5.5%Lowest U.S.: +7.4%
Median age	39±2.5Highest about the U.S. average	38.3±4.3Lowest 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	26.7%±6Highest U.S.: 22%	18.8%±6.4Lowest 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+	15.8%±3Lowest U.S.: 17.2%	20.7%±4.6Highest 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+	41.8%Highest U.S.: 35.7%	37.9%Lowest U.S.: 35.7%
Enrolled in collegeshare of residents	4.2%±1.9Lowest U.S.: 6.4%	19.3%±1.8Highest U.S.: 6.4%
Cost of living
Household incomemedian	$99,572±$13kHighest 23% above U.S.	$73,854±$23kLowest 9% below 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	$428,300±$26kHighest 29% above U.S.	$224,800±$71kLowest 32% below U.S.
Rentmedian gross, monthly	$1,726±$83Highest 22% above U.S.	$1,137±$195Lowest 20% below U.S.
Property taxmedian, yearly	$4,956Highest 59% above U.S.	$3,167Lowest about the U.S. average
Renters paying 30%+of income on rent	53.5%±24.5Lowest U.S.: 51.1%	67.7%±21.9Highest 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	3.4%Lowest U.S.: 12.5%	12.5%Highest U.S.: 12.5%
Housing
Homeownersof occupied homes	78.3%Lowest U.S.: 65.2%	79%Highest U.S.: 65.2%
Typical home builtmedian year	1982Highest 2 yrs newer than U.S.	1974Lowest 6 yrs older than U.S.
Getting to work
Average commuteone way	27 minHighest about the U.S. average	19 minLowest 27% below U.S.
Work from home	17.6%±5.8Highest U.S.: 15.1%	6.2%±3.9Lowest U.S.: 15.1%
Schools
Public school scoresrank in state, math + reading	#58 of 133 in ME	#39 of 70 in VT
School district	RSU 35/MSAD 35	Slate Valley Unified Union School District #62
High school in town	Marshwood High School	None in town
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.