Four Square Mile, Colorado Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Four Square Mile, Colorado is 21,788 as of the 2023 American Community Survey, making it the 36th-largest city in Colorado. The median household income is $73,318, the median home value is $448,200, and the median age is 31.7.
21,788
Population
8064
People / sq mi
$73,318
Median Income
$448,200
Median Home Value
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Four Square Mile covers 2.7 sq mi of land at 8064 people per square mile.
About Four Square Mile, CO
Homeownership is the standout figure in Four Square Mile: 24.7% of homes are owner-occupied, lower than the national rate. Four Square Mile is a city in Colorado with a population of 21,788. It ranks #36 among cities in Colorado by population.
Household earnings are middling, with a median of $73,318 — below the US median of $78,538. Roughly 10.6% of residents fall below the poverty line, below the national 12.4%. Home values run above average at $448,200, with typical rent around $1,796.
Educational attainment is on the higher side for US cities — 45.2% of adults hold a four-year degree, above the national 35.0%. Remote work is on the higher side at 16.8%, above the national 14.0%, and the average commute runs about 26 minutes each way.
Race & Ethnicity
| White | 53.9% |
| Black or African American | 21.4% |
| Asian | 0.2% |
| Hispanic or Latino (any race) | 2.6% |
| Two or More Races | 0.0% |
Economy & Income
$73,318
Median Household Income
$42,450
Per Capita Income
10.6%
Poverty Rate
2.5%
Unemployment Rate
Housing
$448,200
Median Home Value
$1,796
Median Rent
24.7%
Owner-Occupied
Education
93.6%
High School+
45.2%
Bachelor's+
Commute
2.7%
Drive Alone
69.0%
Public Transit
16.8%
Work From Home
25.6 min
Avg Commute
Community Profile
41.5%
Foreign Born
67.3%
Non-English at Home
2.5%
Veterans
13.1%
With Disability
89.5%
Health Insurance
98.2%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 25.5% |
| Finance, Insurance & Real Estate | 13.1% |
| Retail Trade | 10.8% |
| Education, Health Care & Social Services | 8.8% |
| Information | 6.9% |
| Construction | 5.5% |
| Public Administration | 3.9% |
| Arts, Entertainment & Food Services | 3.7% |
| Manufacturing | 3.7% |
| Transportation & Warehousing | 3.3% |
| Agriculture & Mining | 1.1% |
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City rankings
Frequently Asked Questions
Four Square Mile, Colorado has a population of 21,788 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 36th-largest city in Colorado.
The median household income in Four Square Mile, Colorado is $73,318, with 10.6% of residents living below the federal poverty level.
The median home value in Four Square Mile, Colorado is $448,200, with median monthly rent at $1,796 and a homeownership rate of 24.7%.
The median age in Four Square Mile, Colorado is 31.7 years. The population is 48.0% male and 52.0% female.
Where to stay in Four Square Mile
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Population, race, income, age, and trends across Colorado
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.