Compare towns

Portsmouth vs Newfields vs New Castle vs Kittery

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).
Newfields has the most kids (18.9% under 18).
New Castle has the most expensive homes ($1701k median).
Kittery has the most affordable homes ($469k 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.

MeasurePortsmouthNewfieldsNew CastleKittery
People
Population
22,545Highest
2,023
827Lowest
10,473
Growth since 20102010 → 2020 census
+5.7%
U.S.: +7.4%
+5.3%
U.S.: +7.4%
+3.3%Lowest
U.S.: +7.4%
+6.1%Highest
U.S.: +7.4%
Median age
42.9±2Lowest
10% above U.S.
44.1±1.8
13% above U.S.
62.8±6Highest
61% above U.S.
46.8±2.3
20% above U.S.
Kids under 18
14%±1.9
U.S.: 22%
18.9%±1.6Highest
U.S.: 22%
12.9%±7.1Lowest
U.S.: 22%
14.7%±2.9
U.S.: 22%
Newfields 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%
13.6%±0.9Lowest
U.S.: 17.2%
44.3%±16.1Highest
U.S.: 17.2%
26.9%±4.9
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%
68.1%
U.S.: 35.7%
68.8%Highest
U.S.: 35.7%
46%Lowest
U.S.: 35.7%
Enrolled in collegeshare of residents
3.8%±1.2
U.S.: 6.4%
7.5%±7.2Highest
U.S.: 6.4%
0.6%±1.8Lowest
U.S.: 6.4%
4.5%±1.5
U.S.: 6.4%
Newfields 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.
$197,885±$15kHighest
145% above U.S.
$176,953±$29k
119% above U.S.
$93,728±$14kLowest
16% above U.S.
Newfields and New Castle are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$688,500±$39k
107% above U.S.
$646,400±$34k
94% above U.S.
$1,701,300±$267kHighest
411% above U.S.
$468,500±$31kLowest
41% above U.S.
Rentmedian gross, monthly
$1,869±$111
32% above U.S.
$1,875±$323
33% above U.S.
$3,501Highest
148% above U.S.
$1,716±$224Lowest
21% above U.S.
Property taxmedian, yearly
$8,018
157% above U.S.
$10,000+Highest
at least 221% above U.S.
$8,509
173% above U.S.
$4,518Lowest
45% above U.S.
Renters paying 30%+of income on rent
50.4%±7.2Highest
U.S.: 51.1%
43.3%±40.8
U.S.: 51.1%
0%±85.7Lowest
U.S.: 51.1%
38.8%±14.9
U.S.: 51.1%
Portsmouth and Newfields are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
6.8%Highest
U.S.: 12.5%
2.4%Lowest
U.S.: 12.5%
4.6%
U.S.: 12.5%
6.4%
U.S.: 12.5%
Housing
Homeownersof occupied homes
51.9%Lowest
U.S.: 65.2%
95.3%Highest
U.S.: 65.2%
93%
U.S.: 65.2%
67.2%
U.S.: 65.2%
Typical home builtmedian year
1959Lowest
21 yrs older than U.S.
1991Highest
11 yrs newer than U.S.
1975
5 yrs older than U.S.
1965
15 yrs older than U.S.
Getting to work
Average commuteone way
22 min
16% below U.S.
26 min
about the U.S. average
33 minHighest
23% above U.S.
20 minLowest
24% below U.S.
Work from home
21.9%±4Lowest
U.S.: 15.1%
25.5%±3.7
U.S.: 15.1%
40.1%±19.4Highest
U.S.: 15.1%
22.7%±7.2
U.S.: 15.1%
New Castle and Newfields 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
School district Portsmouth School District Newfields School District New Castle School District Kittery Public Schools
High school in town Portsmouth High School None in town None in town Robert W Traip Academy
Students per teacherat that high school
11.4Highest
— —
9.9Lowest
On TownTapestry
Old photos in Our Story None yet None yet 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.