What stands out worked out from the figures below

Groton has the oldest population (median age 51.1).

Union has grown the fastest since 2010 (+5.5%).

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	Groton	Union
People
Population	507Lowest	2,663Highest
Growth since 20102010 → 2020 census	-4%Lowest U.S.: +7.4%	+5.5%Highest U.S.: +7.4%
Median age	51.1±16.2Highest 31% above U.S.	41.6±5.3Lowest 7% above U.S.
	Groton and Union are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18	15.4%±4.6Lowest U.S.: 22%	24.9%±4Highest U.S.: 22%
Age 65+	29.4%±4.8Highest U.S.: 17.2%	21.4%±3.1Lowest U.S.: 17.2%
Bachelor’s degree+adults 25+	29.2%Lowest U.S.: 35.7%	34.4%Highest U.S.: 35.7%
Enrolled in collegeshare of residents	2%±2Lowest U.S.: 6.4%	3.5%±1.5Highest U.S.: 6.4%
	Union and Groton are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian	$85,625±$21kHighest 6% above U.S.	$80,724±$9kLowest about the U.S. average
	Groton and Union are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied	$269,000±$45kHighest 19% below U.S.	$267,600±$42kLowest 20% below U.S.
	Groton and Union are within the Census margin of error here, so we can’t say which is really higher.
Rentmedian gross, monthly	$2,667±$295Highest 89% above U.S.	$1,179±$452Lowest 17% below U.S.
Property taxmedian, yearly	$2,873Lowest 8% below U.S.	$3,276Highest 5% above U.S.
Renters paying 30%+of income on rent	50%±83.6Highest U.S.: 51.1%	24.6%±19.8Lowest U.S.: 51.1%
	Groton and Union are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line	10.5%Highest U.S.: 12.5%	10.2%Lowest U.S.: 12.5%
Housing
Homeownersof occupied homes	91.3%Highest U.S.: 65.2%	85.9%Lowest U.S.: 65.2%
Typical home builtmedian year	1984Highest 4 yrs newer than U.S.	1979Lowest 1 yr older than U.S.
Getting to work
Average commuteone way	29 min 11% above U.S.	29 min 11% above U.S.
Work from home	13.7%±6.5Lowest U.S.: 15.1%	15.9%±5.3Highest U.S.: 15.1%
	Union and Groton are within the Census margin of error here, so we can’t say which is really higher.
Schools
School district	—	RSU 40/MSAD 40
High school in town	—	None in town
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.