Compare towns
New Castle vs Dover vs Portsmouth
Cost, people, housing, commute and schools, side by side, each benchmarked against New Hampshire.
What stands out worked out from the figures below
New Castle has the most expensive homes ($1701k median).
Dover has grown the fastest since 2010 (+9.2%).
Portsmouth has the shortest commute (22 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 | Dover | Portsmouth |
|---|---|---|---|
| Your priorities | |||
| People | |||
| Population | 827Lowest |
33,364Highest |
22,545 |
| Growth since 20102010 → 2020 census | +3.3%Lowest NH: +4.6% |
+9.2%Highest NH: +4.6% |
+5.7% NH: +4.6% |
| Median age | 62.8±6Highest 45% above NH |
36.9±1.9Lowest 15% below NH |
42.9±2 about the NH average |
| Kids under 18 | 12.9%±7.1Lowest NH: 18.2% |
16.9%±1.8Highest NH: 18.2% |
14%±1.9 NH: 18.2% |
| Dover and Portsmouth are within the Census margin of error here, so we can’t say which is really higher. | |||
| Age 65+ | 44.3%±16.1Highest NH: 20.1% |
16.8%±1.8Lowest NH: 20.1% |
21.9%±2.4 NH: 20.1% |
| Bachelor’s degree+adults 25+ | 68.8%Highest NH: 40.6% |
52%Lowest NH: 40.6% |
64% NH: 40.6% |
| Enrolled in collegeshare of residents | 0.6%±1.8Lowest NH: 6% |
6.2%±1.2Highest NH: 6% |
3.8%±1.2 NH: 6% |
| Dover 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 79% above NH |
$94,829±$7kLowest 4% below NH |
$106,219±$7k 7% above NH |
| Home valuemedian, owner-occupied | $1,701,300±$267kHighest 323% above NH |
$436,700±$20kLowest 8% above NH |
$688,500±$39k 71% above NH |
| Rentmedian gross, monthly | $3,501Highest 135% above NH |
$1,607±$100Lowest 8% above NH |
$1,869±$111 25% above NH |
| Property taxmedian, yearly | $8,509Highest 28% above NH |
$8,249 24% above NH |
$8,018Lowest 20% above NH |
| Renters paying 30%+of income on rent | 0%±85.7Lowest NH: 48.2% |
48.6%±6.3 NH: 48.2% |
50.4%±7.2Highest NH: 48.2% |
| Portsmouth and Dover 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% |
8.3%Highest NH: 7.2% |
6.8% NH: 7.2% |
| Housing | |||
| Homeownersof occupied homes | 93%Highest NH: 72.8% |
52.7% NH: 72.8% |
51.9%Lowest NH: 72.8% |
| Typical home builtmedian year | 1975 4 yrs older than NH |
1976Highest 3 yrs older than NH |
1959Lowest 20 yrs older than NH |
| Getting to work | |||
| Average commuteone way | 33 minHighest 22% above NH |
23 min 15% below NH |
22 minLowest 17% below NH |
| Work from home | 40.1%±19.4Highest NH: 16.8% |
18.6%±2.5Lowest NH: 16.8% |
21.9%±4 NH: 16.8% |
| 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 | — | #64 of 120 in NH | #11 of 120 in NH |
| School district | New Castle School District | Dover School District | Portsmouth School District |
| High school in town | None in town | Dover Senior High School | Portsmouth High School |
| Students per teacherat that high school | — | 12.7Highest |
11.4Lowest |
| 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.