New Castle, Colorado Demographics & Population 2026
During the 2020–2024 ACS period, New Castle, Colorado had a total population of 4,880, the 118th largest town in Colorado, with a median household income of $80,084, which is 16% lower than the state average. The poverty rate is 6.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Near full employment with an unemployment rate of just 0.8%.
New Castle Quick Facts
How New Castle Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 4,878 | 4,880 | +0.0% |
| Median household income | $88,421 | $80,084 | -9.4% |
| Median home value | $488,600 | $454,300 | -7.0% |
How New Castle Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 52 | National average: 61
Education
Educational Attainment (Adults 25+)
New Castle Rankings in Colorado
Explore Colorado Rankings
Other Cities in Garfield County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Rifle | 10,570 | $80,000 | 6.0% | $413,500 |
| Glenwood Springs | 10,241 | $91,481 | 7.9% | $619,000 |
| Carbondale | 6,637 | $108,324 | 10.5% | $900,600 |
| Battlement Mesa | 5,755 | $76,152 | 11.0% | $312,700 |
| Silt | 3,642 | $93,690 | 2.6% | $446,900 |
| Parachute | 1,422 | $58,778 | 27.5% | $271,400 |
| Chacra | 457 | N/A | 21.7% | $1,041,700 |
| Mulford | 413 | $141,036 | 0.0% | $1,302,100 |
| Cattle Creek | 396 | $44,769 | 4.8% | $1,100,000 |
| No Name | 269 | $158,377 | 0.0% | N/A |
Cities Similar to New Castle
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Dove Valley | 4,806 | $81,524 | $455,600 | 44.4% | 11.6% |
| Edgewater | 4,932 | $76,591 | $636,900 | 46.6% | 15.3% |
| Manitou Springs | 4,735 | $85,000 | $561,200 | 57.2% | 11.2% |
| West Pleasant View | 5,051 | $95,817 | $489,400 | 29.2% | 11.7% |
| Brush | 5,306 | $73,382 | $273,000 | 16.5% | 14.2% |
Population Overview
New Castle is a small community located in Colorado, within Garfield County. The total population is 4,880. It ranks as the 118th most populous out of 472 Census-designated places in Colorado.
Age Demographics
The median age in New Castle is 38.7 years. This is 3% higher than the state median of 37.7 years.
Economy, Income & Housing
The median household income in New Castle is $80,084. This is 16% lower than the state median of $95,470. It is also about the same as the national median of $80,734. The poverty rate stands at 6.2%. This is 35% lower than the state poverty rate of 9.4%. The unemployment rate is 0.8%. This is 82% lower than the state rate of 4.6%. The median home value is $454,300. Housing costs are 16% lower than the state median of $539,400. The home-value-to-income ratio is 5.7x. 73.1% of occupied housing units are owner-occupied. This homeownership rate is 10% higher than the state average of 66.2%.
Race & Ethnicity
The largest racial or ethnic group in New Castle is White (non-Hispanic), making up 61.0% of the population. Hispanic or Latino residents account for 35.5%. The Hispanic or Latino population is significantly higher than the state average (35.5% vs 22.5%).
Education
32.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 30% lower than the state rate of 45.7%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.9%.
Data Sources & Methodology
All demographic data for New Castle, Colorado is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Colorado state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 472 Census-designated places in Colorado. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all Colorado city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of New Castle, Colorado?
New Castle, Colorado has a population of 4,880 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in New Castle, CO?
The median household income in New Castle is $80,084, which is about the same as the national median of $80,734.
What is the poverty rate in New Castle, CO?
The poverty rate in New Castle is 6.2%. This means approximately 301 residents live below the federal poverty line.
What is the racial makeup of New Castle, Colorado?
New Castle's population is 61.0% White, 0.0% Black, 35.5% Hispanic/Latino, and 0.0% Asian.
What is the median home value in New Castle, CO?
The median home value in New Castle is $454,300. The home-value-to-income ratio is 5.7x.
How educated is New Castle, Colorado?
32.1% of adults (25+) in New Castle hold a bachelor's degree or higher, and 10.8% hold a graduate or professional degree.