Compare towns
Durham vs Grantham vs Plymouth 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
Durham has the youngest population (median age 20.1).
Grantham has grown the fastest since 2010 (+14%).
Plymouth has the most affordable homes ($292k median).
Portsmouth has the most people working from home (21.9%).
Durham is a college town. 70.2% 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.
| Measure | Durham | Grantham | Plymouth | Portsmouth |
|---|---|---|---|---|
| Your priorities | ||||
| People | ||||
| Population | 10,681 |
3,465Lowest |
6,601 |
22,545Highest |
| Growth since 20102010 → 2020 census | +7.8% NH: +4.6% |
+14%Highest NH: +4.6% |
-4.4%Lowest NH: +4.6% |
+5.7% NH: +4.6% |
| Median age | 20.1±0.2Lowest 54% below NH |
50.4±7.5Highest 16% above NH |
24.6±3.4 43% below NH |
42.9±2 about the NH average |
| Grantham and Portsmouth are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Kids under 18 | 6.5%±2Lowest NH: 18.2% |
19.1%±6.6Highest NH: 18.2% |
13.6%±3.6 NH: 18.2% |
14%±1.9 NH: 18.2% |
| Grantham and Portsmouth are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Age 65+ | 7.5%±1.4Lowest NH: 20.1% |
17%±6.9 NH: 20.1% |
12%±2.7 NH: 20.1% |
21.9%±2.4Highest NH: 20.1% |
| Portsmouth and Grantham are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Bachelor’s degree+adults 25+ | 75.4%Highest NH: 40.6% |
59.6% NH: 40.6% |
54%Lowest NH: 40.6% |
64% NH: 40.6% |
| Enrolled in collegeshare of residents | 70.2%±1.6Highest NH: 6% |
4.8%±6 NH: 6% |
33.7%±3.5 NH: 6% |
3.8%±1.2Lowest NH: 6% |
| Cost of living | ||||
| Household incomemedian | $112,070±$25kHighest 13% above NH |
$106,403±$54k 7% above NH |
$77,027±$26kLowest 22% below NH |
$106,219±$7k 7% above NH |
| Durham and Grantham are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Home valuemedian, owner-occupied | $498,000±$45k 24% above NH |
$343,100±$39k 15% below NH |
$292,400±$22kLowest 27% below NH |
$688,500±$39kHighest 71% above NH |
| Rentmedian gross, monthly | $1,302±$211 13% below NH |
— | $1,108±$255Lowest 26% below NH |
$1,869±$111Highest 25% above NH |
| Property taxmedian, yearly | $10,000+Highest at least 50% above NH |
$7,605 14% above NH |
$6,288Lowest 6% below NH |
$8,018 20% above NH |
| Renters paying 30%+of income on rent | 55.4%±19.2Highest NH: 48.2% |
— | 33.8%±11.6Lowest NH: 48.2% |
50.4%±7.2 NH: 48.2% |
| Durham and Portsmouth are within the Census margin of error here, so we can’t say which is really higher. | ||||
| Below poverty line | 12.4% NH: 7.2% |
0%Lowest NH: 7.2% |
18.6%Highest NH: 7.2% |
6.8% NH: 7.2% |
| Housing | ||||
| Homeownersof occupied homes | 53.6% NH: 72.8% |
100%Highest NH: 72.8% |
56.3% NH: 72.8% |
51.9%Lowest NH: 72.8% |
| Typical home builtmedian year | 1973 6 yrs older than NH |
1987Highest 8 yrs newer than NH |
1981 2 yrs newer than NH |
1959Lowest 20 yrs older than NH |
| Getting to work | ||||
| Average commuteone way | 17 minLowest 36% below NH |
23 minHighest 16% below NH |
18 min 31% below NH |
22 min 17% below NH |
| Work from home | 15.6%±3.3 NH: 16.8% |
13.8%±6.2 NH: 16.8% |
11.7%±3.6Lowest NH: 16.8% |
21.9%±4Highest NH: 16.8% |
| Portsmouth and Durham 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 | #9 of 120 in NH | #6 of 120 in NH | #47 of 120 in NH | #11 of 120 in NH |
| School district | — | Grantham School District | Plymouth School District · Pemi-Baker Regional School District | Portsmouth School District |
| High school in town | — | None in town | Plymouth Regional High School | Portsmouth High School |
| Students per teacherat that high school | — | — | 12.8Highest |
11.4Lowest |
| On TownTapestry | ||||
| Old photos in Our Story | None yet | 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.