Compare towns

Deerfield vs Portsmouth vs Somersworth

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

What stands out worked out from the figures below

Deerfield has grown the fastest since 2010 (+13.4%).
Portsmouth has the most expensive homes ($689k median).
Somersworth has the most affordable homes ($318k 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.

MeasureDeerfieldPortsmouthSomersworth
People
Population
4,932Lowest
22,545Highest
12,111
Growth since 20102010 → 2020 census
+13.4%Highest
NH: +4.6%
+5.7%
NH: +4.6%
+0.8%Lowest
NH: +4.6%
Median age
42.8±4.2
about the NH average
42.9±2Highest
about the NH average
38.4±2.7Lowest
11% below NH
Portsmouth and Deerfield are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18
20.9%±4.1Highest
NH: 18.2%
14%±1.9Lowest
NH: 18.2%
19.9%±4
NH: 18.2%
Deerfield and Somersworth are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
17.5%±3.5
NH: 20.1%
21.9%±2.4Highest
NH: 20.1%
14%±3Lowest
NH: 20.1%
Portsmouth and Deerfield are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+
47.3%
NH: 40.6%
64%Highest
NH: 40.6%
31.4%Lowest
NH: 40.6%
Enrolled in collegeshare of residents
3.6%±1.8Lowest
NH: 6%
3.8%±1.2
NH: 6%
4.9%±2Highest
NH: 6%
Somersworth and Portsmouth are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian
$131,563±$10kHighest
33% above NH
$106,219±$7k
7% above NH
$74,504±$13kLowest
25% below NH
Home valuemedian, owner-occupied
$421,000±$33k
5% above NH
$688,500±$39kHighest
71% above NH
$318,400±$23kLowest
21% below NH
Rentmedian gross, monthly
$1,593±$318
7% above NH
$1,869±$111Highest
25% above NH
$1,477±$134Lowest
about the NH average
Portsmouth and Deerfield are within the Census margin of error here, so we can’t say which is really higher.
Property taxmedian, yearly
$7,369
11% above NH
$8,018Highest
20% above NH
$6,805Lowest
about the NH average
Renters paying 30%+of income on rent
17.4%±17.6Lowest
NH: 48.2%
50.4%±7.2
NH: 48.2%
56.3%±14.7Highest
NH: 48.2%
Somersworth and Portsmouth are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
6.8%Lowest
NH: 7.2%
6.8%Lowest
NH: 7.2%
11.2%Highest
NH: 7.2%
Housing
Homeownersof occupied homes
91.3%Highest
NH: 72.8%
51.9%Lowest
NH: 72.8%
57.8%
NH: 72.8%
Typical home builtmedian year
1985Highest
6 yrs newer than NH
1959Lowest
20 yrs older than NH
1967
12 yrs older than NH
Getting to work
Average commuteone way
34 minHighest
28% above NH
22 minLowest
17% below NH
26 min
3% below NH
Work from home
22.4%±6.3Highest
NH: 16.8%
21.9%±4
NH: 16.8%
11.7%±3.5Lowest
NH: 16.8%
Deerfield and Portsmouth 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 #61 of 120 in NH #11 of 120 in NH #117 of 120 in NH
School district Deerfield School District Portsmouth School District Somersworth School District
High school in town None in town Portsmouth High School Somersworth High School
Students per teacherat that high school —
11.4
11.4
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.