What stands out worked out from the figures below

Seabrook has the shortest commute (21 min average).

Millis has grown the fastest since 2010 (+7.2%).

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	Seabrook	Millis
People
Population	8,427Lowest	8,888Highest
Growth since 20102010 → 2020 census	-3.4%Lowest U.S.: +7.4%	+7.2%Highest U.S.: +7.4%
Median age	54±1.9Highest 39% above U.S.	46.4±3Lowest 19% above U.S.
Kids under 18	14.8%±3.1Lowest U.S.: 22%	18.4%±2.8Highest U.S.: 22%
	Millis and Seabrook are within the Census margin of error here, so we can’t say which is really higher.
Age 65+	31.5%±5Highest U.S.: 17.2%	23.5%±3.9Lowest U.S.: 17.2%
	Seabrook and Millis are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+	27.5%Lowest U.S.: 35.7%	54.5%Highest U.S.: 35.7%
Enrolled in collegeshare of residents	2.9%±1.3Lowest U.S.: 6.4%	4.9%±1.6Highest U.S.: 6.4%
	Millis and Seabrook are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian	$84,349±$15kLowest 4% above U.S.	$155,996±$9kHighest 93% above U.S.
Home valuemedian, owner-occupied	$443,500±$40kLowest 33% above U.S.	$603,500±$31kHighest 81% above U.S.
Rentmedian gross, monthly	$1,542±$174Lowest 9% above U.S.	$1,696±$279Highest 20% above U.S.
	Millis and Seabrook are within the Census margin of error here, so we can’t say which is really higher.
Property taxmedian, yearly	$5,785Lowest 85% above U.S.	$9,344Highest 200% above U.S.
Renters paying 30%+of income on rent	50.4%±10Lowest U.S.: 51.1%	56.5%±16.6Highest U.S.: 51.1%
	Millis and Seabrook are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line	12.1%Highest U.S.: 12.5%	4.8%Lowest U.S.: 12.5%
Housing
Homeownersof occupied homes	68.2%Lowest U.S.: 65.2%	83.2%Highest U.S.: 65.2%
Typical home builtmedian year	1986Highest 6 yrs newer than U.S.	1974Lowest 6 yrs older than U.S.
Getting to work
Average commuteone way	21 minLowest 21% below U.S.	31 minHighest 16% above U.S.
Work from home	10.5%±3.7Lowest U.S.: 15.1%	17.5%±4.2Highest U.S.: 15.1%
	Millis and Seabrook 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	#114 of 120 in NH	#63 of 282 in MA
School district	Seabrook School District	Millis
High school in town	None in town	Millis High School
Students per teacherat that high school	—	10.7
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.