The Town FilesNew Castle, New Hampshire
Town in Rockingham County · population 1,000 (2020 Census)
- Median home
- $1,701,300
- Household income
- $176,953
- Jan low / Jul high
- 16° / 81°
- Snow a year
- 56 in
- Tornadoes ≤10 mi since 1950
- 3
- Median age
- 62.8
New Castle is a town of 1,000 people in Rockingham County, New Hampshire. The median home is worth $1,701,300, above the typical New Hampshire town ($357,650). It ranks more seaside character than 100% of New Hampshire towns, better for retirees than 99% of New Hampshire towns, more walkable than 98% of New Hampshire towns.
How New Castle ranks
Percentile among New Hampshire towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of New Hampshire towns.
Homes and cost of living
The median home in New Castle is worth $1,701,300, above the typical New Hampshire town ($357,650). Homes cost about 9.6 times the median household income of $176,953, which is more affordable than 0% of New Hampshire towns. Median rent is $3,501 a month. 93.0% of households own their home.
| Housing | New Castle | Typical New Hampshire town |
|---|---|---|
| Median home value | $1,701,300 | $357,650 |
| Median rent | $3,501 | $1,285 |
| Median household income | $176,953 | $94,107 |
| Home value ÷ income | 9.6× | 3.8× |
| Homeownership | 93.0% | 82.1% |
| Median year built | 1975 | 1978 |
| Seasonal / vacation homes | 12.0% | — |
Who lives in New Castle
| People | New Castle | Typical New Hampshire town |
|---|---|---|
| Median age | 62.8 | 46.3 |
| Age 65 and over | 44.3% | 22.3% |
| Under 18 | 12.9% | — |
| Bachelor's degree or higher | 68.8% | 36.8% |
| Below the poverty line | 4.6% | 7.2% |
| Veterans | 12.2% | — |
| Born outside the U.S. | 0.7% | — |
| Work from home | 40.1% | 14.2% |
| Average commute | 32.6 min | 27.1 min |
| Homes with broadband | 100.0% | 92.5% |
Weather in New Castle
July highs average 80.5°F and January lows 16.3°F. About 50.6 inches of rain and melted snow fall a year, with 55.8 inches of snow (typical New Hampshire town: 67.7 in). Expect about 11 days a year at 90°F or hotter and 143 nights at or below freezing.
Tornadoes, storms and disasters
3 tornadoes have passed within 10 miles of New Castle since 1950, compared with 5 for the typical New Hampshire town. 2 rated (E)F2 or stronger. The strongest, an F2, struck on May 3, 1976 about 8.2 miles from the town center. The most recent was on June 9, 1978.
Hail of 1 inch or larger has been reported within 10 miles 19 times; the largest was 2.00 inches on August 4, 2015.
Severe weather in Rockingham County since 1996
Rockingham County has been included in 35 federal disaster or emergency declarations since 1953, most often for flood, hurricane, snowstorm.
| Declared | Incident | Declaration |
|---|---|---|
| July 10, 2024 | Winter Storm | DR-4799: Severe Winter Storm And Flooding |
| April 19, 2024 | Severe Storm | DR-4771: Severe Storms And Flooding |
| September 14, 2023 | Flood | DR-4740: Severe Storms And Flooding |
| April 3, 2020 | Biological | DR-4516: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3445: Covid-19 |
Jobs and pay in Rockingham County
Rockingham County had 157,028 jobs in 2024, paying an average of $73,537 a year. Unemployment was 2.3% in 2023; in New Castle itself the ACS puts it at 0%.
Public schools in New Castle
1 public school with 26 students, about 8.7 students per teacher.
| School | Grades | Students | Per teacher |
|---|---|---|---|
| Maude H. Trefethen School | K-6 | 26 | 8.7 |
Towns near New Castle
- Rye, NH2.0 mi · 5,543 people · home $1,028,100
- Kittery, ME2.2 mi · 4,973 people · home $461,400
- Kittery Point, ME2.6 mi · 1,009 people · home $481,700
- Portsmouth, NH3.2 mi · 21,956 people · home $688,500
- Newington, NH5.7 mi · 811 people · home $861,600
- South Eliot, ME6.3 mi · 3,719 people · home $475,600
- Eliot, ME6.5 mi · 6,717 people · home $498,900
- York Harbor, ME6.6 mi · 3,132 people · home $627,700
New Castle questions
Is New Castle, New Hampshire a good place to retire?
On The Town Files lifestyle rankings, New Castle scores better for retirees than 99% of New Hampshire towns and quieter than 26%. 44.3% of residents are 65 or older (median age 62.8).
How much does a house cost in New Castle?
The median owner-occupied home in New Castle is valued at $1,701,300 (Census ACS 2020–2024), against a median household income of $176,953, so homes cost about 9.6 times income. Median rent is $3,501 a month.
What is the weather like in New Castle?
July highs average 80.5°F and January lows 16.3°F (NOAA 1991–2020 normals). It gets about 50.6 inches of precipitation a year and 55.8 inches of snow.
Does New Castle get tornadoes?
3 tornadoes have passed within 10 miles of New Castle since 1950 (NOAA Storm Events); the strongest was a F2 on May 3, 1976. The typical New Hampshire town has had 5.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)