New Castle, CO
Population 4,878 · Colorado
About New Castle, CO
New Castle is a small community in Colorado with a population of 4,878 residents. The median household income is $88,421 per year, which is above the national average. The median age in New Castle is 37.4 years.
Housing in New Castle has a median home value of $488,600 and median monthly rent of $1,627. Of the 1,901 total housing units, the majority are owner-occupied, with 1,325 owner-occupied and 547 renter-occupied units.
The unemployment rate in New Castle is 1.3% and the poverty rate is 6.5%. 36.4% of residents hold a bachelor's degree or higher. The average commute time is 31.8 minutes.
How New Castle Ranks in Colorado
Cost of Living in New Castle, CO
Compared to national averages, New Castle has a median household income of $88,421 (18% above the national median of $75,149). Home values average $488,600, which is 100% above the national median. Monthly rent at $1,627 is 40% above the US average of $1,163. Within Colorado, New Castle's income is 0% below the state average of $88,514, and home values are 7% above the state median of $457,127.
Why Live in New Castle, CO?
New Castle offers a strong local economy with a median household income of $88,421, well above the national average, and a strong job market with an unemployment rate of just 1.3%, and a well-educated community where 36.4% of residents hold a bachelor’s degree or higher. Additionally, the city features a low poverty rate of 6.5%, better than the national average.
Potential considerations include a competitive housing market where the typical home costs $488,600. However, New Castle’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
New Castle has a population of 4,878 with a median age of 37.4 years. Compare New Castle with other cities to see how it stacks up, or explore all cities in Colorado.
Similar Cities Near New Castle
Cities in Colorado with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Edgewater | 4,955 | $74,320 | $603,400 | Compare |
| Manitou Springs | 4,796 | $76,550 | $545,800 | Compare |
| Breckenridge | 5,001 | $132,666 | $757,100 | Compare |
| Vail | 4,729 | $103,705 | $1,040,100 | Compare |
| Meridian | 5,058 | $90,496 | $571,600 | Compare |
| Todd Creek | 5,069 | $185,417 | $856,800 | Compare |
| Silverthorne | 4,657 | $114,185 | $691,300 | Compare |
| West Pleasant View | 5,221 | $89,352 | $454,000 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Colorado
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about New Castle
What is the population of New Castle, CO?
The population of New Castle, CO is 4,878 according to the latest Census data.
What is the median household income in New Castle?
The median household income in New Castle, CO is $88,421 per year.
What is the median home value in New Castle?
The median home value in New Castle, CO is $488,600.
What is the average rent in New Castle?
The median monthly rent in New Castle, CO is $1,627.
What is the unemployment rate in New Castle?
The unemployment rate in New Castle, CO is 1.3%.