Newcastle, CA demographics:
population, income, and more

Total population
1,585
-0.6% year-over-year change
Median household income
$108,750/yr
-1.5% year-over-year change
Housing units
697
-4.1% year-over-year change

Newcastle population

How many people live in Newcastle

Newcastle is home to 1,585 residents, according to the most recent Census data. Gender-wise, 51.2% of Newcastle locals are male, and 48.8% are female.

Total population
1,585
-0.6% year-over-year change
Gender ratio
Male
51.2%
811
Female
48.8%
774
Value Percent YoY change
Male 811 51.2% 0.5%
Female 774 48.8% -1.6%
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 Newcastle is 42, with the population distributed as follows: about 14.3% are children under 15, then 6.6% are in the 15 to 24 age group. Adults between 25 and 44 make up 33.8% of the population, while another 17.8% fall into the 45 to 64 bracket. Finally, around 27.4% are 65 or older.

Median age
42.3
Age breakdown
Under 15
14.3%
15 to 24
6.6%
25 to 44
33.8%
45 to 64
17.8%
Over 65
27.4%
Value Percent YoY change
Under 15 227 14.3% -1.7%
15 to 24 105 6.6% -8.7%
25 to 44 536 33.8% 2.3%
45 to 64 283 17.8% 3.7%
Over 65 434 27.4% -3.8%
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 Newcastle, 95% of the population are US-born citizens, while 4.2% have gained naturalized citizenship. At the same time, 0.8% of residents are non-citizens. As for race, 88.1% of locals are Caucasian, 1% are African American and 0.8% have Asian roots. There’s also a share of 8.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
95%
Non-U.S.-born citizens
4.2%
Non-citizens
0.8%
Value Percent YoY change
U.S.-born citizens 1,506 95% -0.9%
Non-U.S.-born citizens 66 4.2% 13.8%
Non-citizens 13 0.8% -23.5%
Racial breakdown
White
88.1%
Black or African American
1%
American Indian and Alaska Native
0.6%
Asian
0.8%
Native Hawaiian and other Pacific Islander
0%
Two or more races
8.1%
Other
1.5%
Value Percent
White 1,396 88.1%
Black or African American 16 1%
American Indian and Alaska Native 9 0.6%
Asian 12 0.8%
Two or more races 128 8.1%
Other 24 1.5%

Households in Newcastle

A peek inside Newcastle households

Newcastle has 620 households, with an average of 3 members in each. Of these, 63.9% are families, while the remaining 36.1% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
620
-3.6% year-over-year change
Average people per household
3
Non-family households
224
Family households
396
Value Percent YoY change
Non-family households 224 36.1% -3.9%
Family households 396 63.9% -3.4%
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 Newcastle

The housing landscape of Newcastle

Newcastle's housing consists of 697 units, with 64.4% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 29.7% of the housing landscape.

Housing units
697
-4.1% year-over-year change
Housing types
Value Percent
1 unit, detached 449 64.4%
3 or 4 units 27 3.9%
5 to 9 units 14 2%
Mobile home 207 29.7%
Homes built since 2020
9
-25.0% year-over-year change

The age of buildings in Newcastle

In Newcastle, the median construction year is 1978. About 10.8% of homes were built before the 1940s, with another 1% going up by 1949. Most development happened in the second half of the 20th century. Then, 1.9% of homes were added from 2000 to 2009, 1.9% between 2010 and 2019, and 1.3% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 75 10.8% 5.6%
Built between 1940 and 1949 7 1% -46.1%
Built between 1950 and 1959 14 2% -73.6%
Built between 1960 and 1969 107 15.4% 8.1%
Built between 1970 and 1979 184 26.4% 0.6%
Built between 1980 and 1989 172 24.7% -2.8%
Built between 1990 and 1999 103 14.8% 25.6%
Built between 2000 and 2009 13 1.9% -50.0%
Built between 2010 and 2019 13 1.9% 18.2%
Built in 2020 or later 9 1.3% -25.0%
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.

Newcastle occupancy rates

Out of the 620 occupied housing units in Newcastle, 88.6% are owner-occupied, while 11.4% are lived in by tenants. Meanwhile, 11% of all homes on the local market sit vacant.

Occupied housing units
620
-3.6% year-over-year change
Occupancy breakdown
Renter occupied
71
Owner occupied
549
Value Percent YoY
change
Renter occupied 71 11.4% 6.0%
Owner occupied 549 88.6% -4.7%
Unoccupied housing units
11.0%
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.

Newcastle housing costs

Housing costs in Newcastle come to a median of $1,539 per month, while tenants specifically pay a median gross rent of $1,798.

Median housing costs per month
$1,539/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 Newcastle
$1,798/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 Newcastle

Newcastle education at a glance

About 34.6% of the population in Newcastle went to high school, while 25.4% pursued college studies. Another 12% earned an associate degree and 14% hold a bachelor’s. Meanwhile, 12.7% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 18 1.4% 0.0%
High school diploma 450 34.6% -9.8%
College diploma 330 25.4% -1.2%
Associate degree 156 12% 35.6%
Bachelor's degree 182 14% 9.6%
Graduate degree 165 12.7% -7.3%
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 Newcastle

How much people earn in Newcastle

The average annual household income in Newcastle was $128,955 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.3% change from the previous year. At the same time, the median income stood at $108,750, reflecting a -1.5% shift over the same period.

Average household income in Newcastle
$128,955/year
2.3% year-over-year change
Median household income in Newcastle
$108,750/year
-1.5% year-over-year change

Newcastle income by age

In Newcastle, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $176,532. Those with someone between 45 and 64 in charge, often well established professionally, earn $183,000 overall. Overall, 87.6% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $176,532 3.4%
45 - 64 $183,000 50.9%
Over 65 $53,500 -18.3%
Above poverty level
1,388
Below poverty level
197
Value Percent YoY
change
Above poverty level 1,388 87.6% -0.9%
Below poverty level 197 12.4% 2.1%

Employment in Newcastle

Workforce and job types in Newcastle

The job market in Newcastle is powered by 619 working residents, spread across a range of industries and roles. 78.7% of the working population are employed in professional or administrative positions, while 21.3% are in hands-on or service-based jobs. Also, 7.8% run their own businesses, 58% are employed by private companies, and 16.3% work in the public sector.

Workforce demographics

Working population
619
3.7% year-over-year change
White collar
487
Blue collar
132
Value Percent YoY change
White collar 487 78.7% 8.7%
Blue collar 132 21.3% -11.4%
Employer type
Self employees
7.8%
Private companies
58%
Governmental workers
16.3%
Not for profit companies
17.9%
Value Percent YoY change
Self employees 48 7.8% -30.4%
Private companies 359 58% -7.7%
Governmental workers 101 16.3% -15.1%
Not for profit companies 111 17.9% 455.0%
Unemployment rate
2.8%
-33.3% year-over-year change

Available workforce

The unemployment rate in Newcastle stands at 2.8%, 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 Newcastle

How people get around in Newcastle

Commuting methods vary: 89.4% of residents travel by personal vehicle and 2.7% 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 530 89.4% 13.7%
Motorcycle 5 0.8% -16.7%
Walk 16 2.7% 23.1%
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 Newcastle by zipcode?

Zipcode Population Number of households Median income Average income
95658 5,894 2,241 $126,581 $159,090

Explore more communities

FAQs about Newcastle demographics 

What is the total population of Newcastle?

Newcastle has a total population of 1,585 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 -0.6% compared to a year ago.

What is the gender ratio in Newcastle?

The gender ratio in Newcastle is as follows:
  • 51.2% males (811 residents)
  • 48.8% females (774 residents)

What is the median age in Newcastle?

The median age in Newcastle is 42.3.

What is the age distribution of the population in Newcastle?

The age distribution in Newcastle is as follows:
  • Under 15: 14.3% (227 residents)
  • Ages 15-24: 6.6% (105 residents)
  • Ages 25-44: 33.8% (536 residents)
  • Ages 45-64: 17.8% (283 residents)
  • Over 65: 27.4% (434 residents)

What is the racial and ethnic makeup of Newcastle?

The racial and ethnic makeup of Newcastle is as follows:
  • White: 88.1% (1,396 residents)
  • Black or African American: 1% (16 residents)
  • American Indian and Alaska Native: 0.6% (9 residents)
  • Asian: 0.8% (12 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 8.1% (128 residents)
  • Other: 1.5% (24 residents)

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

U.S.-born citizens represent 95% of the population in Newcastle.

How many housing units are there in Newcastle?

There are 697 housing units in Newcastle, reflecting a -4.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Newcastle has a total of 620 households, with an average of 3 people in each.

What is the median household income in Newcastle?

Newcastle has a median household income of $108,750, representing a -1.5% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Newcastle?

The employment rate is 97.2% in Newcastle, with a workforce of 619 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 78.7% (487 residents)
  • Blue-collar workers: 21.3% (132 residents)

Places of employment:
  • Self-employed: 7.8% (48 residents)
  • Private companies: 58% (359 residents)
  • Governmental workers: 16.3% (101 residents)
  • Not-for-profit companies: 17.9% (111 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