New Castle Flag

New Castle

County Seat:
No
Area (mi²):
3.478
State:
Delaware

New Castle is a city located in New Castle County, Delaware. New Castle has a 2026 population of 5,801. New Castle is currently growing at a rate of 0.75% annually and its population has increased by 4.65% since the most recent census, which recorded a population of 5,543 in 2020.

The median household income in New Castle is $89,205 with a poverty rate of 4.66%. The median age in New Castle is 48.5 years: 43.8 years for males, and 49.8 years for females. For every 100 females there are 92.2 males.

5.8K
Total Population
1,668
Density (mi²)
43 0.75%
Growth

New Castle Population

New Castle Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20265,801430.75%
20255,758430.75%
20245,7151292.31%
20235,586510.92%
20225,535150.27%
20215,520-23-0.41%
20205,543-9-0.16%
20195,414420.78%
20185,3722224.31%
20175,150-19-0.37%
20165,169-17-0.33%
20155,186-8-0.15%
20145,194-5-0.1%
20135,199110.21%
20125,188150.29%
20115,173140.27%
20105,159-126-2.38%
20004,862250.52%
19904,837-70-1.43%
19804,907931.93%
19704,8143457.72%
19604,469-927-17.18%
19505,39698222.25%
19404,4142836.85%
19304,1312777.19%
19203,85450315.01%
19103,351-29-0.86%
19003,380-630-15.71%
18904,0103108.38%
18803,70000%

Median Age

Overall: 48.5 years
Female: 49.8 years
Male: 43.8 years

New Castle Adults

There are 4,664 adults, (1,279 of whom are seniors) in New Castle.

Sex Ratio

Female: 2,902 (52%)
Male: 2,677 (48%)

Demographics

The racial composition of New Castle includes 61.34% White, 28.45% Black or African American, 4.75% other race, and smaller percentages for Asian, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White3,42261.34%
Black or African American1,58728.45%
Other race2654.75%
Two or more races2444.37%
Asian520.93%
Native American90.16%
Race
Population ↓
Percentage (of total)
Other race2324.16%
Two or more races1642.94%
White530.95%
Native American50.09%
Race
Population ↓
Percentage (of total)
White3,36960.39%
Black or African American1,58728.45%
Two or more races801.43%
Asian520.93%
Other race330.59%
Native American40.07%

New Castle Marital Status

Economics and Income Statistics

New Castle 's average per capita income is $58,931. Household income levels show a median of $89,205. The poverty rate stands at 4.66%.

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
Married Families$120,994-
Families$115,864$124,960
Households$89,205$104,071
Non Families$64,103$75,685

$58,931

Average Income

$89,205

Median Household Income

4.66%

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)