Compare towns

Grantham vs Seabrook vs South Hampton

Cost, people, housing, commute and schools, side by side, each benchmarked against New Hampshire.

What stands out worked out from the figures below

Grantham has grown the fastest since 2010 (+14%).
Seabrook has the most renters (31.8% rent).
South Hampton has the most expensive homes ($661k 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.

MeasureGranthamSeabrookSouth Hampton
People
Population
3,465
8,427Highest
984Lowest
Growth since 20102010 → 2020 census
+14%Highest
NH: +4.6%
-3.4%Lowest
NH: +4.6%
+9.8%
NH: +4.6%
Median age
50.4±7.5
16% above NH
54±1.9Highest
25% above NH
45.1±5.3Lowest
4% above NH
Seabrook and Grantham are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18
19.1%±6.6
NH: 18.2%
14.8%±3.1Lowest
NH: 18.2%
23.3%±5.8Highest
NH: 18.2%
South Hampton and Grantham are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
17%±6.9
NH: 20.1%
31.5%±5Highest
NH: 20.1%
16.5%±1.4Lowest
NH: 20.1%
Bachelor’s degree+adults 25+
59.6%Highest
NH: 40.6%
27.5%Lowest
NH: 40.6%
52.4%
NH: 40.6%
Enrolled in collegeshare of residents
4.8%±6Highest
NH: 6%
2.9%±1.3
NH: 6%
2.7%±1.6Lowest
NH: 6%
Grantham and Seabrook are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian
$106,403±$54k
7% above NH
$84,349±$15kLowest
15% below NH
$152,500±$44kHighest
54% above NH
South Hampton 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
15% below NH
$443,500±$40k
10% above NH
$661,100±$45kHighest
64% above NH
Rentmedian gross, monthly —
$1,542±$174Lowest
3% above NH
$1,889±$489Highest
27% above NH
South Hampton and Seabrook are within the Census margin of error here, so we can’t say which is really higher.
Property taxmedian, yearly
$7,605
14% above NH
$5,785Lowest
13% below NH
$9,109Highest
37% above NH
Renters paying 30%+of income on rent —
50.4%±10Highest
NH: 48.2%
30%±40.8Lowest
NH: 48.2%
Seabrook and South Hampton are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
0%Lowest
NH: 7.2%
12.1%Highest
NH: 7.2%
3.3%
NH: 7.2%
Housing
Homeownersof occupied homes
100%Highest
NH: 72.8%
68.2%Lowest
NH: 72.8%
88.6%
NH: 72.8%
Typical home builtmedian year
1987Highest
8 yrs newer than NH
1986
7 yrs newer than NH
1976Lowest
3 yrs older than NH
Getting to work
Average commuteone way
23 min
16% below NH
21 minLowest
22% below NH
28 minHighest
6% above NH
Work from home
13.8%±6.2
NH: 16.8%
10.5%±3.7Lowest
NH: 16.8%
17%±3.9Highest
NH: 16.8%
South Hampton 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 #114 of 120 in NH —
School district Grantham School District Seabrook School District South Hampton School District
High school in town None in town None in town None in town
On TownTapestry
Old photos in Our Story None yet 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.