New Castle Flag

New Castle

County Seat:
No
Area (mi²):
0.809
State:
New Hampshire

New Castle is located in Rockingham County, New Hampshire. New Castle has a 2025 population of 1,005 . New Castle is currently growing at a rate of 0.4% annually and its population has increased by 1.21% since the most recent census, which recorded a population of 993 in 2020.

The average household income in New Castle is $338,436 with a poverty rate of 3.69%. The median age in New Castle is 56.8 years: 54.4 years for males, and 61.7 years for females. For every 100 females there are 107.9 males.

1K
Total Population
1,243
Density (mi²)
4 0.4%
Growth

New Castle Population

New Castle Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of New Castle includes 96.62% White, and smaller percentages for Two or more races, Asian and multiracial populations.

Population by Race

White (96.62%)

Two or more races (2.95%)

Asian (0.42%)

Race
Population
Percentage (of total)
White91696.62%
Two or more races282.95%
Asian40.42%

New Castle Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

New Castle's average per capita income is $158,523. Household income levels show a median of $193,558. The poverty rate stands at 3.69%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Families$250,001$362,394
Married Families$250,001-
Households$193,558$338,436
Non Families$95,260$286,728

$158,523

Average Income

$193,558

Median Household Income

3.69%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)