New Castle Flag

New Castle

County:
Garfield County
County Seat:
No
Area (mi²):
2.496
State:
Colorado

New Castle is a town located in Garfield County, Colorado. New Castle has a 2025 population of 4,889 . New Castle is currently declining at a rate of -0.1% annually and its population has decreased by -0.45% since the most recent census, which recorded a population of 4,911 in 2020.

The average household income in New Castle is $105,584 with a poverty rate of 6.52%. The median age in New Castle is 37.4 years: 38.9 years for males, and 32.8 years for females. For every 100 females there are 90.1 males.

4.9K
Total Population
1,959
Density (mi²)
-5 -0.1%
Growth

New Castle Population

New Castle Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of New Castle includes 75.89% White, 8.04% other race, and smaller percentages for Asian and multiracial populations.

Population by Race

White (75.89%)

Two or more races (15.05%)

Other race (8.04%)

Asian (1.03%)

Race
Population
Percentage (of total)
White3,70275.89%
Two or more races73415.05%
Other race3928.04%
Asian501.03%

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 $57,989. Household income levels show a median of $88,421. The poverty rate stands at 6.52%.

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$112,985-
Families$101,375$122,927
Households$88,421$105,584
Non Families$42,008$64,258

$57,989

Average Income

$88,421

Median Household Income

6.52%

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)