Compare towns
Cornish vs Plainfield vs Seabrook
Cost, people, housing, commute and schools, side by side, each benchmarked against New Hampshire.
What stands out worked out from the figures below
Cornish has the most affordable homes ($296k median).
Plainfield has grown the fastest since 2010 (+4%).
Seabrook has the most renters (31.8% rent).
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 | Cornish | Plainfield | Seabrook |
|---|---|---|---|
| Your priorities | |||
| People | |||
| Population | 1,816Lowest |
2,522 |
8,427Highest |
| Growth since 20102010 → 2020 census | -1.5% NH: +4.6% |
+4%Highest NH: +4.6% |
-3.4%Lowest NH: +4.6% |
| Median age | 54±8.3Highest 25% above NH |
38.9±6.5Lowest 10% below NH |
54±1.9Highest 25% above NH |
| Kids under 18 | 14.4%±3.2Lowest NH: 18.2% |
23.4%±5.8Highest NH: 18.2% |
14.8%±3.1 NH: 18.2% |
| Plainfield and Seabrook are within the Census margin of error here, so we can’t say which is really higher. | |||
| Age 65+ | 27.3%±4.1 NH: 20.1% |
19.8%±4.5Lowest NH: 20.1% |
31.5%±5Highest NH: 20.1% |
| Seabrook and Cornish are within the Census margin of error here, so we can’t say which is really higher. | |||
| Bachelor’s degree+adults 25+ | 40.6% NH: 40.6% |
46.7%Highest NH: 40.6% |
27.5%Lowest NH: 40.6% |
| Enrolled in collegeshare of residents | 1.4%±0.9Lowest NH: 6% |
4.8%±2.3Highest NH: 6% |
2.9%±1.3 NH: 6% |
| Plainfield and Seabrook are within the Census margin of error here, so we can’t say which is really higher. | |||
| Cost of living | |||
| Household incomemedian | $91,821±$2k 7% below NH |
$122,656±$13kHighest 24% above NH |
$84,349±$15kLowest 15% below NH |
| Home valuemedian, owner-occupied | $296,000±$69kLowest 26% below NH |
$442,400±$47k 10% above NH |
$443,500±$40kHighest 10% above NH |
| Seabrook and Plainfield are within the Census margin of error here, so we can’t say which is really higher. | |||
| Rentmedian gross, monthly | $1,221±$227Lowest 18% below NH |
$1,674±$181Highest 12% above NH |
$1,542±$174 3% above NH |
| Plainfield and Seabrook are within the Census margin of error here, so we can’t say which is really higher. | |||
| Property taxmedian, yearly | $5,796 13% below NH |
$7,904Highest 19% above NH |
$5,785Lowest 13% below NH |
| Renters paying 30%+of income on rent | 40.5%±38.1 NH: 48.2% |
31.8%±23.1Lowest NH: 48.2% |
50.4%±10Highest NH: 48.2% |
| Seabrook and Cornish are within the Census margin of error here, so we can’t say which is really higher. | |||
| Below poverty line | 4.7%Lowest NH: 7.2% |
5.2% NH: 7.2% |
12.1%Highest NH: 7.2% |
| Housing | |||
| Homeownersof occupied homes | 94.1%Highest NH: 72.8% |
87.3% NH: 72.8% |
68.2%Lowest NH: 72.8% |
| Typical home builtmedian year | 1980 1 yr newer than NH |
1977Lowest 2 yrs older than NH |
1986Highest 7 yrs newer than NH |
| Getting to work | |||
| Average commuteone way | 24 minHighest 9% below NH |
22 min 18% below NH |
21 minLowest 22% below NH |
| Work from home | 12%±4.1 NH: 16.8% |
18.1%±8.5Highest NH: 16.8% |
10.5%±3.7Lowest NH: 16.8% |
| Plainfield and Cornish 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 | — | #19 of 120 in NH | #114 of 120 in NH |
| School district | Cornish School District | Plainfield School District | Seabrook School District |
| High school in town | None in town | None in town | None in town |
| 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.