What stands out worked out from the figures below

New Castle has the most people working from home (40.1%).

Sullivan has the most affordable homes ($237k 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	New Castle	Sullivan
People
Population	827Highest	687Lowest
Growth since 20102010 → 2020 census	+3.3%Highest NH: +4.6%	-2.8%Lowest NH: +4.6%
Median age	62.8±6Highest 45% above NH	46.6±6.5Lowest 8% above NH
Kids under 18	12.9%±7.1Lowest NH: 18.2%	16.3%±5Highest NH: 18.2%
	Sullivan and New Castle are within the Census margin of error here, so we can’t say which is really higher.
Age 65+	44.3%±16.1Highest NH: 20.1%	20.5%±3.6Lowest NH: 20.1%
Bachelor’s degree+adults 25+	68.8%Highest NH: 40.6%	28.5%Lowest NH: 40.6%
Enrolled in collegeshare of residents	0.6%±1.8Lowest NH: 6%	3.9%±2.6Highest NH: 6%
	Sullivan 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	$176,953±$29kHighest 79% above NH	$106,667±$20kLowest 8% above NH
Home valuemedian, owner-occupied	$1,701,300±$267kHighest 323% above NH	$236,500±$29kLowest 41% below NH
Rentmedian gross, monthly	$3,501Highest 135% above NH	$1,225±$275Lowest 18% below NH
Property taxmedian, yearly	$8,509Highest 28% above NH	$5,099Lowest 24% below NH
Renters paying 30%+of income on rent	0%±85.7Lowest NH: 48.2%	40%±84.5Highest NH: 48.2%
	Sullivan and New Castle are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line	4.6%Highest NH: 7.2%	4.1%Lowest NH: 7.2%
Housing
Homeownersof occupied homes	93%Lowest NH: 72.8%	93.6%Highest NH: 72.8%
Typical home builtmedian year	1975Lowest 4 yrs older than NH	1979Highest same as NH
Getting to work
Average commuteone way	33 minHighest 22% above NH	32 minLowest 20% above NH
Work from home	40.1%±19.4Highest NH: 16.8%	4.2%±2.5Lowest NH: 16.8%
Schools
School district	New Castle School District	—
High school in town	None in town	—
On TownTapestry
Old photos in History	None yet	None yet

NH 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.