119th Congress · CO-4
Colorado's 4th Congressional District
Colorado's 4th Congressional District (CO-4) has a population of 741,771. The median household income is $111,866 and the median age is 39.4.
741,771
Population
23
People / sq mi
$111,866
Median Income
39.4
Median Age
CO-4 covers 32,138 sq mi of land at 23.1 people per square mile.
Race & Ethnicity
| White | 80.8% |
| Black or African American | 1.7% |
| Asian | 0.1% |
| Hispanic or Latino (any race) | 2.1% |
Economy & Income
$111,866
Median Household Income
$54,796
Per Capita Income
4.1%
Poverty Rate
2.7%
Unemployment
Housing
$569,900
Median Home Value
$1,777
Median Rent
76.3%
Homeownership
Education
95.2%
High School+
47.0%
Bachelor's+
Other Colorado Congressional Districts
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Frequently Asked Questions
Colorado's 4th Congressional District (CO-4) has a population of 741,771 according to the latest Census ACS 5-Year estimates. Each US Congressional District is drawn to be roughly equal in population (~760K people).
The median household income in Colorado's 4th Congressional District is $111,866, with a per capita income of $54,796.
Colorado's 4th Congressional District is 80.8% White, 1.7% Black, 0.1% Asian, and 2.1% Hispanic or Latino, per Census ACS data.
More from Colorado
Data for Colorado's 4th Congressional District (119th Congress) from the American Community Survey 5-Year estimates. Land area from the Census Gazetteer files. Congressional districts are redrawn after each decennial Census; the 119th Congress (current) uses post-2020 boundaries.
this entity is one of the data points covered by this site’s U.S. population demographics dataset. The detail above comes directly from the U.S. Census Bureau ACS and decennial files; the context that follows situates the headline numbers against the broader distribution across U.S. states, metros, cities, and ZIPs.
Every number on this page links back to the U.S. Census Bureau ACS and decennial files; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. states, metros, cities, and ZIPs. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: U.S. Census Bureau ACS, 2026.