Compare towns
New Castle vs Newmarket vs Portsmouth vs South Eliot
Cost, people, housing, commute and schools, side by side, each benchmarked against the U.S..
What stands out worked out from the figures below
New Castle has the most expensive homes ($1701k median).
Newmarket has the most affordable homes ($455k median).
Portsmouth has grown the fastest since 2010 (+5.7%).
South Eliot has the shortest commute (21 min average).
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.
| Measure | New Castle | Newmarket | Portsmouth | South Eliot |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 827Lowest |
9,463 |
22,545Highest |
4,203 |
| Growth since 20102010 → 2020 census | +3.3%Lowest U.S.: +7.4% |
+5.5% U.S.: +7.4% |
+5.7%Highest U.S.: +7.4% |
+4.8% U.S.: +7.4% |
| Median age | 62.8±6Highest 61% above U.S. |
41.2±1.9Lowest 6% above U.S. |
42.9±2 10% above U.S. |
55.5±8 43% above U.S. |
| New Castle and South Eliot are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 12.9%±7.1Lowest U.S.: 22% |
15.6%±2.7Highest U.S.: 22% |
14%±1.9 U.S.: 22% |
15.2%±4.7 U.S.: 22% |
| Newmarket and South Eliot are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Age 65+ | 44.3%±16.1Highest U.S.: 17.2% |
16.1%±2.8Lowest U.S.: 17.2% |
21.9%±2.4 U.S.: 17.2% |
32.8%±6.8 U.S.: 17.2% |
| New Castle and South Eliot are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 68.8%Highest U.S.: 35.7% |
49.7%Lowest U.S.: 35.7% |
64% U.S.: 35.7% |
49.9% U.S.: 35.7% |
| Enrolled in collegeshare of residents | 0.6%±1.8Lowest U.S.: 6.4% |
5.6%±1.9Highest U.S.: 6.4% |
3.8%±1.2 U.S.: 6.4% |
1.2%±1.3 U.S.: 6.4% |
| Newmarket and Portsmouth are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Cost of living | ||||
| Household incomemedian | $176,953±$29kHighest 119% above U.S. |
$100,845±$13k 25% above U.S. |
$106,219±$7k 32% above U.S. |
$99,299±$9kLowest 23% above U.S. |
| Home valuemedian, owner-occupied | $1,701,300±$267kHighest 411% above U.S. |
$455,000±$22kLowest 37% above U.S. |
$688,500±$39k 107% above U.S. |
$475,600±$52k 43% above U.S. |
| Rentmedian gross, monthly | $3,501Highest 148% above U.S. |
$1,671±$69Lowest 18% above U.S. |
$1,869±$111 32% above U.S. |
$2,155±$292 53% above U.S. |
| Property taxmedian, yearly | $8,509 173% above U.S. |
$8,734Highest 180% above U.S. |
$8,018 157% above U.S. |
$4,442Lowest 42% above U.S. |
| Renters paying 30%+of income on rent | 0%±85.7Lowest U.S.: 51.1% |
46.3%±8.3 U.S.: 51.1% |
50.4%±7.2 U.S.: 51.1% |
64.3%±29.1Highest U.S.: 51.1% |
| South Eliot 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 U.S.: 12.5% |
4.6%Lowest U.S.: 12.5% |
6.8%Highest U.S.: 12.5% |
5.5% U.S.: 12.5% |
| Housing | ||||
| Homeownersof occupied homes | 93%Highest U.S.: 65.2% |
52.9% U.S.: 65.2% |
51.9%Lowest U.S.: 65.2% |
79.9% U.S.: 65.2% |
| Typical home builtmedian year | 1975 5 yrs older than U.S. |
1983Highest 3 yrs newer than U.S. |
1959Lowest 21 yrs older than U.S. |
1973 7 yrs older than U.S. |
| Getting to work | ||||
| Average commuteone way | 33 minHighest 23% above U.S. |
28 min 7% above U.S. |
22 min 16% below U.S. |
21 minLowest 22% below U.S. |
| Work from home | 40.1%±19.4Highest U.S.: 15.1% |
17.3%±3.3 U.S.: 15.1% |
21.9%±4 U.S.: 15.1% |
14.2%±4.5Lowest U.S.: 15.1% |
| New Castle 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 | — | #39 of 120 in NH | #11 of 120 in NH | — |
| School district | New Castle School District | Newmarket School District | Portsmouth School District | — |
| High school in town | None in town | Newmarket Jr.-Sr. High School | Portsmouth High School | — |
| Students per teacherat that high school | — | 9.9Lowest |
11.4Highest |
— |
| 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.