Compare towns

Newmarket vs Portsmouth vs Plymouth 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

Portsmouth has the most expensive homes ($689k median).
Plymouth has the youngest population (median age 24.6).
Somersworth has the most kids (19.9% under 18).
Plymouth is a college town. 33.7% of residents are enrolled in college, which pulls its median age, poverty rate and renter figures away from what a year-round family would see.

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.

MeasureNewmarketPortsmouthPlymouthSomersworth
People
Population
9,463
22,545Highest
6,601Lowest
12,111
Growth since 20102010 → 2020 census
+5.5%
NH: +4.6%
+5.7%Highest
NH: +4.6%
-4.4%Lowest
NH: +4.6%
+0.8%
NH: +4.6%
Median age
41.2±1.9
5% below NH
42.9±2Highest
about the NH average
24.6±3.4Lowest
43% below NH
38.4±2.7
11% below NH
Portsmouth and Newmarket are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18
15.6%±2.7
NH: 18.2%
14%±1.9
NH: 18.2%
13.6%±3.6Lowest
NH: 18.2%
19.9%±4Highest
NH: 18.2%
Somersworth and Newmarket are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
16.1%±2.8
NH: 20.1%
21.9%±2.4Highest
NH: 20.1%
12%±2.7Lowest
NH: 20.1%
14%±3
NH: 20.1%
Bachelor’s degree+adults 25+
49.7%
NH: 40.6%
64%Highest
NH: 40.6%
54%
NH: 40.6%
31.4%Lowest
NH: 40.6%
Enrolled in collegeshare of residents
5.6%±1.9
NH: 6%
3.8%±1.2Lowest
NH: 6%
33.7%±3.5Highest
NH: 6%
4.9%±2
NH: 6%
Cost of living
Household incomemedian
$100,845±$13k
about the NH average
$106,219±$7kHighest
7% above NH
$77,027±$26k
22% below NH
$74,504±$13kLowest
25% below NH
Portsmouth and Newmarket are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$455,000±$22k
13% above NH
$688,500±$39kHighest
71% above NH
$292,400±$22kLowest
27% below NH
$318,400±$23k
21% below NH
Rentmedian gross, monthly
$1,671±$69
12% above NH
$1,869±$111Highest
25% above NH
$1,108±$255Lowest
26% below NH
$1,477±$134
about the NH average
Property taxmedian, yearly
$8,734Highest
31% above NH
$8,018
20% above NH
$6,288Lowest
6% below NH
$6,805
about the NH average
Renters paying 30%+of income on rent
46.3%±8.3
NH: 48.2%
50.4%±7.2
NH: 48.2%
33.8%±11.6Lowest
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
4.6%Lowest
NH: 7.2%
6.8%
NH: 7.2%
18.6%Highest
NH: 7.2%
11.2%
NH: 7.2%
Housing
Homeownersof occupied homes
52.9%
NH: 72.8%
51.9%Lowest
NH: 72.8%
56.3%
NH: 72.8%
57.8%Highest
NH: 72.8%
Typical home builtmedian year
1983Highest
4 yrs newer than NH
1959Lowest
20 yrs older than NH
1981
2 yrs newer than NH
1967
12 yrs older than NH
Getting to work
Average commuteone way
28 minHighest
6% above NH
22 min
17% below NH
18 minLowest
31% below NH
26 min
3% below NH
Work from home
17.3%±3.3
NH: 16.8%
21.9%±4Highest
NH: 16.8%
11.7%±3.6Lowest
NH: 16.8%
11.7%±3.5Lowest
NH: 16.8%
Portsmouth and Newmarket 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 #39 of 120 in NH #11 of 120 in NH #47 of 120 in NH #117 of 120 in NH
School district Newmarket School District Portsmouth School District Plymouth School District · Pemi-Baker Regional School District Somersworth School District
High school in town Newmarket Jr.-Sr. High School Portsmouth High School Plymouth Regional High School Somersworth High School
Students per teacherat that high school
9.9Lowest
11.4
12.8Highest
11.4
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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.