New Castle, Colorado Population 2024

4,782

New Castle is a city located in Garfield County Colorado. New Castle has a 2024 population of 4,782. New Castle is currently declining at a rate of -0.69% annually and its population has decreased by -2.69% since the most recent census, which recorded a population of 4,914 in 2020.

The average household income in New Castle is $94,493 with a poverty rate of 9.01%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in New Castle is 36.2 years, 35.3 years for males, and 36.6 years for females.

New Castle Demographics

According to the most recent ACS, the racial composition of New Castle was:

  • White: 73.8%
  • Two or more races: 13.01%
  • Other race: 12.23%
  • Asian: 0.96%
  • Black or African American:
  • Native American:
  • Native Hawaiian or Pacific Islander:
Land Area (mi²)
2.5 sq mi
Density (mi²)
1,899.70/sq mi
Growth Since 2020
-2.69% (-132)
The current population of New Castle, Colorado is 4,782 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 4,914.

New Castle, Colorado Population 2024

Population by Race

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Race
Population
Percentage (of total)
White3,59773.8%
Two or more races63413.01%
Other race59612.23%
Asian470.96%
Black or African American
Native American
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

New Castle Population by Race

New Castle Population Pyramid 2024

New Castle Median Age

36.2

Total

35.3

Male

36.6

Female

New Castle Adults

There are 3,420 adults, (610 of whom are seniors) in New Castle.

New Castle Age Dependency

73.5

Age Dependency Ratio

21.7

Old Age Dependency Ratio

51.7

Child Dependency Ratio

New Castle Sex Ratio

Female2,42349.71%
Male2,45150.29%

New Castle Population by Age

New Castle Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1,8122.6970.529.5
Married9093.5987.812.2
Non Family6741.3956.443.6
Female1473.2567.332.7
Male822.370100
showing: 5 rows

3.35

Average Family Size

2.69

Average Household Size

70.5%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

New Castle Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

New Castle Educational Attainment by Sex (over 25)

New Castle Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 97.46%.

The highest rate of bachelors degrees is among white people with a rate of 52.93%.

New Castle Educational Attainment by Race

All

Male

Female

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$51,060

Average Earnings

$63,780

Average Male

$48,534

Average Female

New Castle Earnings by Educational Attainment

New Castle Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

New Castle Language

73.27% of New Castle residents speak only English, while 26.73% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 25.56% of the population.

New Castle Language

New Castle Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White3,20033910.59%
Hispanic1,404856.05%
Multiple634152.37%
showing: 3 rows

9.01%

Overall Poverty Rate

12.2%

Male Poverty Rate

5.78%

Female Poverty Rate

Poverty in New Castle

The race most likely to be in poverty in New Castle is White, with 10.59% below the poverty level.

The race least likely to be in poverty in New Castle is Multiple, with 2.37% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was . Among those working part-time, it was 22.91%, and for those that did not work, the poverty rate was 8.74%.

New Castle Poverty

rate

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Rate
Poverty
Less Than 9th Grade17.33%
Some College13.62%
Bachelors or Greater6.14%
High School4.72%
showing: 4 rows

New Castle Poverty Rate by Education

rate

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Rate
Poverty
Male Employed9.21%
Male Unemployed
Female Employed
Female Unemployed
showing: 4 rows

New Castle Poverty Rate by Employment Status and Sex

New Castle Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

New Castle Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

48.7%

Overall Marriage Rate

48.2%

Male Marriage Rate

49.3%

Female Marriage Rate

New Castle Married by Age and Sex

male

female

New Castle Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

New Castle Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

New Castle Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

198

Number of Veterans

198

Male Veterans

Female Veterans

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New Castle Veterans by War

count

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New Castle Veterans by Age

count

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New Castle Veterans by Race

New Castle Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

Veteran Poverty Rate

42.93%

Veteran Disability Rate

New Castle Veterans by Education

LaborForceParticipation

66.3%

Labor Force Participation

64.5%

Employment Rate

2.7%

Unemployment Rate

New Castle Employment by Age

LaborForceParticipation

New Castle Employment by Race

LaborForceParticipation

New Castle Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

45.06%

Born in New Castle

83.03%

Native Born

16.97%

Foreign Born

8.62%

Non Citizen

8.35%

Naturalized

Place of Birth

83.03% of New Castle residents were born in the United States, with 45.06% having been born in Colorado. 8.62% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

New Castle Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20294,617-33-0.71%
20284,650-33-0.7%
20274,683-33-0.7%
20264,716-33-0.69%
20254,749-33-0.69%
20244,782-33-0.69%
20234,815-33-0.68%
20224,848-33-0.68%
20214,881-33-0.67%
20204,914-70-1.4%
20194,98450.1%
20184,9792114.43%
20174,768811.73%
20164,6871142.49%
20154,573340.75%
20144,539-3-0.07%
20134,542110.24%
20124,531511.14%
20114,480-12-0.27%
20104,492
showing: 20 rows

New Castle Population by Year