New Castle, DE demographics:
population, income, and more

Total population
5,579
1.1% year-over-year change
Median household income
$89,205/yr
-3.6% year-over-year change
Housing units
2,877
0.8% year-over-year change

New Castle population

How many people live in New Castle

New Castle is home to 5,579 residents, according to the most recent Census data. Gender-wise, 48% of New Castle locals are male, and 52% are female.

Total population
5,579
1.1% year-over-year change
Gender ratio
Male
48%
2,677
Female
52%
2,902
Value Percent YoY change
Male 2,677 48% -1.8%
Female 2,902 52% 3.9%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in New Castle is 48, with the population distributed as follows: about 14.2% are children under 15, then 5% are in the 15 to 24 age group. Adults between 25 and 44 make up 26.6% of the population, while another 31.2% fall into the 45 to 64 bracket. Finally, around 22.9% are 65 or older.

Median age
48.5
Age breakdown
Under 15
14.2%
15 to 24
5%
25 to 44
26.6%
45 to 64
31.2%
Over 65
22.9%
Value Percent YoY change
Under 15 794 14.2% -0.8%
15 to 24 280 5% -9.1%
25 to 44 1,483 26.6% 0.7%
45 to 64 1,743 31.2% 0.6%
Over 65 1,279 22.9% 6.1%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In New Castle, 89.9% of the population are US-born citizens, while 6.6% have gained naturalized citizenship. At the same time, 3.5% of residents are non-citizens. As for race, 61.3% of locals are Caucasian, 28.4% are African American and 0.9% have Asian roots. There’s also a share of 4.4% that includes residents with two or more races.

Citizenship
U.S.-born citizens
89.9%
Non-U.S.-born citizens
6.6%
Non-citizens
3.5%
Value Percent YoY change
U.S.-born citizens 5,017 89.9% -0.7%
Non-U.S.-born citizens 368 6.6% 16.5%
Non-citizens 194 3.5% 28.5%
Racial breakdown
White
61.3%
Black or African American
28.4%
American Indian and Alaska Native
0.2%
Asian
0.9%
Native Hawaiian and other Pacific Islander
0%
Two or more races
4.4%
Other
4.8%
Value Percent
White 3,422 61.3%
Black or African American 1,587 28.4%
American Indian and Alaska Native 9 0.2%
Asian 52 0.9%
Two or more races 244 4.4%
Other 265 4.8%

Households in New Castle

A peek inside New Castle households

New Castle has 2,774 households, with an average of 2 members in each. Of these, 55.2% are families, while the remaining 44.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
2,774
2.5% year-over-year change
Average people per household
2
Non-family households
1,244
Family households
1,530
Value Percent YoY change
Non-family households 1,244 44.8% 12.2%
Family households 1,530 55.2% -4.2%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in New Castle

The housing landscape of New Castle

New Castle's housing consists of 2,877 units, with 37.1% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 30% and offer a more compact, shared living style.

Housing units
2,877
0.8% year-over-year change
Housing types
Value Percent
1 unit, detached 1,068 37.1%
1 unit, attached 862 30%
2 units 128 4.4%
3 or 4 units 66 2.3%
5 to 9 units 134 4.7%
10 to 19 units 272 9.4%
20 to 49 units 85 3%
50 or more units 262 9.1%
Homes built since 2020
0
% year-over-year change

The age of buildings in New Castle

In New Castle, the median construction year is 1959. About 38.6% of homes were built before the 1940s, with another 5.7% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 1,109 38.6% 13.9%
Built between 1940 and 1949 164 5.7% -18.4%
Built between 1950 and 1959 194 6.7% -5.4%
Built between 1960 and 1969 107 3.7% -38.1%
Built between 1970 and 1979 355 12.3% -1.4%
Built between 1980 and 1989 82 2.8% -16.3%
Built between 1990 and 1999 304 10.6% -6.5%
Built between 2000 and 2009 423 14.7% 4.4%
Built between 2010 and 2019 139 4.8% 21.9%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

New Castle occupancy rates

Out of the 2,774 occupied housing units in New Castle, 63.4% are owner-occupied, while 36.6% are lived in by tenants. Meanwhile, 3.6% of all homes on the local market sit vacant.

Occupied housing units
2,774
2.5% year-over-year change
Occupancy breakdown
Renter occupied
1,015
Owner occupied
1,759
Value Percent YoY
change
Renter occupied 1,015 36.6% 2.8%
Owner occupied 1,759 63.4% 2.3%
Unoccupied housing units
3.6%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

New Castle housing costs

Housing costs in New Castle come to a median of $1,533 per month, while tenants specifically pay a median gross rent of $1,739.

Median housing costs per month
$1,533/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in New Castle
$1,739/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in New Castle

New Castle education at a glance

About 36.3% of the population in New Castle went to high school, while 19.6% pursued college studies. Another 9.9% earned an associate degree and 14.6% hold a bachelor’s. Meanwhile, 18.6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 49 1% 32.4%
High school diploma 1,693 36.3% -2.6%
College diploma 913 19.6% -2.8%
Associate degree 461 9.9% 3.6%
Bachelor's degree 682 14.6% 10.5%
Graduate degree 866 18.6% 4.1%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in New Castle

How much people earn in New Castle

The average annual household income in New Castle was $104,071 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +1.4% change from the previous year. At the same time, the median income stood at $89,205, reflecting a -3.6% shift over the same period.

Average household income in New Castle
$104,071/year
1.4% year-over-year change
Median household income in New Castle
$89,205/year
-3.6% year-over-year change

New Castle income by age

In New Castle, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $113,021. Those with someone between 45 and 64 in charge, often well established professionally, earn $97,368 overall. Overall, 95.3% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $113,021 -1.2%
45 - 64 $97,368 3.4%
Over 65 $54,020 3.2%
Above poverty level
5,262
Below poverty level
260
Value Percent YoY
change
Above poverty level 5,262 95.3% -0.0%
Below poverty level 260 4.7% 39.0%

Average renter income in New Castle

To get a better sense of what renters earn on average in New Castle, their median household income was $91,850 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 22.7%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$91,850
Rent-to-income ratio
22.7%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in New Castle

Workforce and job types in New Castle

The job market in New Castle is powered by 3,060 working residents, spread across a range of industries and roles. 83.6% of the working population are employed in professional or administrative positions, while 16.4% are in hands-on or service-based jobs. Also, 9% run their own businesses, 59.3% are employed by private companies, and 19.6% work in the public sector.

Workforce demographics

Working population
3,060
1.2% year-over-year change
White collar
2,559
Blue collar
501
Value Percent YoY change
White collar 2,559 83.6% 2.7%
Blue collar 501 16.4% -5.8%
Employer type
Self employees
9%
Private companies
59.3%
Governmental workers
19.6%
Not for profit companies
12.2%
Value Percent YoY change
Self employees 275 9% -1.8%
Private companies 1,814 59.3% -5.5%
Governmental workers 599 19.6% 21.0%
Not for profit companies 372 12.2% 12.7%
Unemployment rate
1.3%
17.6% year-over-year change

Available workforce

The unemployment rate in New Castle stands at 1.3%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in New Castle

How people get around in New Castle

Commuting methods vary: 73% of residents travel by personal vehicle and 1.2% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 2,248 73% -6.3%
Bus or trolleybus 119 3.9% 91.9%
Bicycle 10 0.3% 0.0%
Walk 36 1.2% 20.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in New Castle by zipcode?

Zipcode Population Number of households Median income Average income
19720 62,392 23,641 $75,403 $94,952

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FAQs about New Castle demographics 

What is the total population of New Castle?

New Castle has a total population of 5,579 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +1.1% compared to a year ago.

What is the gender ratio in New Castle?

The gender ratio in New Castle is as follows:
  • 48% males (2,677 residents)
  • 52% females (2,902 residents)

What is the median age in New Castle?

The median age in New Castle is 48.5.

What is the age distribution of the population in New Castle?

The age distribution in New Castle is as follows:
  • Under 15: 14.2% (794 residents)
  • Ages 15-24: 5% (280 residents)
  • Ages 25-44: 26.6% (1,483 residents)
  • Ages 45-64: 31.2% (1,743 residents)
  • Over 65: 22.9% (1,279 residents)

What is the racial and ethnic makeup of New Castle?

The racial and ethnic makeup of New Castle is as follows:
  • White: 61.3% (3,422 residents)
  • Black or African American: 28.4% (1,587 residents)
  • American Indian and Alaska Native: 0.2% (9 residents)
  • Asian: 0.9% (52 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 4.4% (244 residents)
  • Other: 4.8% (265 residents)

What percentage of the population in New Castle are U.S.-born citizens?

U.S.-born citizens represent 89.9% of the population in New Castle.

How many housing units are there in New Castle?

There are 2,877 housing units in New Castle, reflecting a +0.8% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in New Castle and what is the average household size?

New Castle has a total of 2,774 households, with an average of 2 people in each.

What is the median household income in New Castle?

New Castle has a median household income of $89,205, representing a -3.6% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for New Castle?

The employment rate is 98.7% in New Castle, with a workforce of 3,060 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 83.6% (2,559 residents)
  • Blue-collar workers: 16.4% (501 residents)

Places of employment:
  • Self-employed: 9% (275 residents)
  • Private companies: 59.3% (1,814 residents)
  • Governmental workers: 19.6% (599 residents)
  • Not-for-profit companies: 12.2% (372 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025