Compare towns

Portsmouth vs New Castle vs Kittery vs Dover

Cost, people, housing, commute and schools, side by side, each benchmarked against the U.S..

What stands out worked out from the figures below

Portsmouth has the most renters (48.1% rent).
New Castle has the most expensive homes ($1701k median).
Kittery has the shortest commute (20 min average).
Dover has grown the fastest since 2010 (+9.2%).

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.

MeasurePortsmouthNew CastleKitteryDover
People
Population
22,545
827Lowest
10,473
33,364Highest
Growth since 20102010 → 2020 census
+5.7%
U.S.: +7.4%
+3.3%Lowest
U.S.: +7.4%
+6.1%
U.S.: +7.4%
+9.2%Highest
U.S.: +7.4%
Median age
42.9±2
10% above U.S.
62.8±6Highest
61% above U.S.
46.8±2.3
20% above U.S.
36.9±1.9Lowest
5% below U.S.
Kids under 18
14%±1.9
U.S.: 22%
12.9%±7.1Lowest
U.S.: 22%
14.7%±2.9
U.S.: 22%
16.9%±1.8Highest
U.S.: 22%
Dover and Kittery are within the Census margin of error here, so we can’t say which is really higher.
Age 65+
21.9%±2.4
U.S.: 17.2%
44.3%±16.1Highest
U.S.: 17.2%
26.9%±4.9
U.S.: 17.2%
16.8%±1.8Lowest
U.S.: 17.2%
New Castle and Kittery are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+
64%
U.S.: 35.7%
68.8%Highest
U.S.: 35.7%
46%Lowest
U.S.: 35.7%
52%
U.S.: 35.7%
Enrolled in collegeshare of residents
3.8%±1.2
U.S.: 6.4%
0.6%±1.8Lowest
U.S.: 6.4%
4.5%±1.5
U.S.: 6.4%
6.2%±1.2Highest
U.S.: 6.4%
Dover and Kittery are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian
$106,219±$7k
32% above U.S.
$176,953±$29kHighest
119% above U.S.
$93,728±$14kLowest
16% above U.S.
$94,829±$7k
17% above U.S.
Home valuemedian, owner-occupied
$688,500±$39k
107% above U.S.
$1,701,300±$267kHighest
411% above U.S.
$468,500±$31k
41% above U.S.
$436,700±$20kLowest
31% above U.S.
Rentmedian gross, monthly
$1,869±$111
32% above U.S.
$3,501Highest
148% above U.S.
$1,716±$224
21% above U.S.
$1,607±$100Lowest
14% above U.S.
Property taxmedian, yearly
$8,018
157% above U.S.
$8,509Highest
173% above U.S.
$4,518Lowest
45% above U.S.
$8,249
164% above U.S.
Renters paying 30%+of income on rent
50.4%±7.2Highest
U.S.: 51.1%
0%±85.7Lowest
U.S.: 51.1%
38.8%±14.9
U.S.: 51.1%
48.6%±6.3
U.S.: 51.1%
Portsmouth and Dover are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
6.8%
U.S.: 12.5%
4.6%Lowest
U.S.: 12.5%
6.4%
U.S.: 12.5%
8.3%Highest
U.S.: 12.5%
Housing
Homeownersof occupied homes
51.9%Lowest
U.S.: 65.2%
93%Highest
U.S.: 65.2%
67.2%
U.S.: 65.2%
52.7%
U.S.: 65.2%
Typical home builtmedian year
1959Lowest
21 yrs older than U.S.
1975
5 yrs older than U.S.
1965
15 yrs older than U.S.
1976Highest
4 yrs older than U.S.
Getting to work
Average commuteone way
22 min
16% below U.S.
33 minHighest
23% above U.S.
20 minLowest
24% below U.S.
23 min
14% below U.S.
Work from home
21.9%±4
U.S.: 15.1%
40.1%±19.4Highest
U.S.: 15.1%
22.7%±7.2
U.S.: 15.1%
18.6%±2.5Lowest
U.S.: 15.1%
New Castle and Kittery 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 #11 of 120 in NH — #17 of 133 in ME #64 of 120 in NH
School district Portsmouth School District New Castle School District Kittery Public Schools Dover School District
High school in town Portsmouth High School None in town Robert W Traip Academy Dover Senior High School
Students per teacherat that high school
11.4
—
9.9Lowest
12.7Highest
On TownTapestry
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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.