What stands out worked out from the figures below

Grantham has grown the fastest since 2010 (+14%).

Millis has the most expensive homes ($604k 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	Grantham	Millis
People
Population	3,465Lowest	8,888Highest
Growth since 20102010 → 2020 census	+14%Highest U.S.: +7.4%	+7.2%Lowest U.S.: +7.4%
Median age	50.4±7.5Highest 30% above U.S.	46.4±3Lowest 19% above U.S.
	Grantham and Millis are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18	19.1%±6.6Highest U.S.: 22%	18.4%±2.8Lowest U.S.: 22%
	Grantham and Millis are within the Census margin of error here, so we can’t say which is really higher.
Age 65+	17%±6.9Lowest U.S.: 17.2%	23.5%±3.9Highest U.S.: 17.2%
	Millis and Grantham are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+	59.6%Highest U.S.: 35.7%	54.5%Lowest U.S.: 35.7%
Enrolled in collegeshare of residents	4.8%±6Lowest U.S.: 6.4%	4.9%±1.6Highest U.S.: 6.4%
	Millis and Grantham are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian	$106,403±$54kLowest 32% above U.S.	$155,996±$9kHighest 93% above U.S.
	Millis and Grantham are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied	$343,100±$39kLowest 3% above U.S.	$603,500±$31kHighest 81% above U.S.
Rentmedian gross, monthly	—	$1,696±$279 20% above U.S.
Property taxmedian, yearly	$7,605Lowest 144% above U.S.	$9,344Highest 200% above U.S.
Renters paying 30%+of income on rent	—	56.5%±16.6 U.S.: 51.1%
Below poverty line	0%Lowest U.S.: 12.5%	4.8%Highest U.S.: 12.5%
Housing
Homeownersof occupied homes	100%Highest U.S.: 65.2%	83.2%Lowest U.S.: 65.2%
Typical home builtmedian year	1987Highest 7 yrs newer than U.S.	1974Lowest 6 yrs older than U.S.
Getting to work
Average commuteone way	23 minLowest 15% below U.S.	31 minHighest 16% above U.S.
Work from home	13.8%±6.2Lowest U.S.: 15.1%	17.5%±4.2Highest U.S.: 15.1%
	Millis and Grantham 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	#6 of 120 in NH	#63 of 282 in MA
School district	Grantham 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.