What stands out worked out from the figures below

Kennebunk has grown the fastest since 2010 (+6.8%).

New Castle has the most expensive homes ($1701k 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	Kennebunk	New Castle
People
Population	11,820Highest	827Lowest
Growth since 20102010 → 2020 census	+6.8%Highest U.S.: +7.4%	+3.3%Lowest U.S.: +7.4%
Median age	54.6±3.3Lowest 40% above U.S.	62.8±6Highest 61% above U.S.
	New Castle and Kennebunk are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18	17.7%±3Highest U.S.: 22%	12.9%±7.1Lowest U.S.: 22%
	Kennebunk and New Castle are within the Census margin of error here, so we can’t say which is really higher.
Age 65+	30%±4Lowest U.S.: 17.2%	44.3%±16.1Highest U.S.: 17.2%
	New Castle and Kennebunk are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+	51.2%Lowest U.S.: 35.7%	68.8%Highest U.S.: 35.7%
Enrolled in collegeshare of residents	2.7%±1.4Highest U.S.: 6.4%	0.6%±1.8Lowest U.S.: 6.4%
	Kennebunk and New Castle are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian	$107,804±$8kLowest 34% above U.S.	$176,953±$29kHighest 119% above U.S.
Home valuemedian, owner-occupied	$487,700±$21kLowest 47% above U.S.	$1,701,300±$267kHighest 411% above U.S.
Rentmedian gross, monthly	$1,425±$290Lowest about the U.S. average	$3,501Highest 148% above U.S.
Property taxmedian, yearly	$4,999Lowest 60% above U.S.	$8,509Highest 173% above U.S.
Renters paying 30%+of income on rent	37.1%±10.9Highest U.S.: 51.1%	0%±85.7Lowest U.S.: 51.1%
	Kennebunk and New Castle are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line	7.3%Highest U.S.: 12.5%	4.6%Lowest U.S.: 12.5%
Housing
Homeownersof occupied homes	80.6%Lowest U.S.: 65.2%	93%Highest U.S.: 65.2%
Typical home builtmedian year	1983Highest 3 yrs newer than U.S.	1975Lowest 5 yrs older than U.S.
Getting to work
Average commuteone way	27 minLowest about the U.S. average	33 minHighest 23% above U.S.
Work from home	32.5%±7.6Lowest U.S.: 15.1%	40.1%±19.4Highest U.S.: 15.1%
	New Castle and Kennebunk 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	#9 of 133 in ME	—
School district	RSU 21	New Castle School District
High school in town	Kennebunk High School	None in town
Students per teacherat that high school	11.6	—
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.