2nd most populous of 64
With 729,019 residents in 2024, Denver County ranks 2nd by population among Colorado's 64 counties and is home to 12.2% of the state's residents.

Denver County has the lowest homeownership rate in Colorado (48.8%) and the largest economy ($128.5 billion GDP).
Denver County is home to 729,019 people (2024 estimate) on 153 square miles of land. This page brings together official U.S. Census Bureau population estimates since 2000, the components of change—births, deaths and migration—American Community Survey indicators on income, housing, poverty and education, BEA economic accounts and BLS unemployment.
Pick an indicator to see its long-run evolution.
U.S. Census Bureau: intercensal estimates 2000–2009, Vintage 2020 (2010–2019) and Vintage 2024 (2020–2024), July 1.
| Indicator | Value | Year and source |
|---|---|---|
| Population estimate | 729,019 | 2024 · U.S. Census Bureau |
| Population, 2010 Census | 600,158 | 2010 · U.S. Census Bureau |
| Population, 2000 | 555,651 | July 1, 2000 · Census intercensal |
| Change since 2000 | +31.2% | 2000–2024 · Census |
| International migration | +6,391 | 2024 · Census Vintage 2024 |
| Domestic migration | −2,114 | 2024 · Census Vintage 2024 |
| Birth rate | 11.8 per 1,000 | 2024 · calculated |
| Death rate | 7.1 per 1,000 | 2024 · calculated |
| Population rank in Colorado | 2nd of 64 | 2024 · calculated |
| Per capita personal income | $119,263 | BEA, 2024 · official |
| Gross domestic product | $128.5 billion | BEA, current dollars, 2024 · official |
| Median household income | $94,718 | ACS 2020–2024 5-year · official |
| Poverty rate | 11.2% | ACS 2020–2024 5-year · official |
| Bachelor’s degree or higher | 56.5% | Age 25+, ACS 2020–2024 5-year · official |
| Foreign-born residents | 14.5% | ACS 2020–2024 5-year · official |
| Median home value | $616,000 | ACS 2020–2024 5-year · official |
| Median gross rent | $1,831/month | ACS 2020–2024 5-year · official |
| Median age | 35.3 years | ACS 2020–2024 5-year · official |
| Households | 335,428 | ACS 2020–2024 5-year · official |
| Owner-occupied homes | 48.8% | ACS 2020–2024 5-year · official |
Comparable indicators for Denver County, Colorado and the United States.
| Indicator | County | Colorado | U.S. | Reference |
|---|---|---|---|---|
| Population change 2020–2024 | +1.9% | +3.2% | +2.6% | Census Vintage 2024 |
| Birth rate (per 1,000) | 11.8 | 10.5 | 10.6 | 2024 |
| Death rate (per 1,000) | 7.1 | 7.6 | 9.1 | 2024 |
| Net migration rate (per 1,000) | 5.9 | 6.5 | 8.2 | 2024 |
| Population density (/mi²) | 4762.5 | 57.5 | 96.3 | 2024 |
| Per capita personal income | $119,263 | $83,055 | $73,204 | BEA, 2024 |
| Median household income | $94,718 | $95,470 | $80,734 | ACS 2020–2024 5-year |
| Poverty rate | 11.2% | 9.4% | 12.5% | ACS 2020–2024 5-year |
| Bachelor’s degree or higher | 56.5% | 45.7% | 35.7% | Age 25+, ACS 2020–2024 5-year |
| Foreign-born residents | 14.5% | 9.8% | 14.1% | ACS 2020–2024 5-year |
| Median home value | $616,000 | $539,400 | $332,700 | ACS 2020–2024 5-year |
| Median gross rent | $1,831/month | $1,761/month | $1,413/month | ACS 2020–2024 5-year |
| Median age | 35.3 years | 37.7 years | 38.9 years | ACS 2020–2024 5-year |
| Owner-occupied homes | 48.8% | 66.2% | 65.2% | ACS 2020–2024 5-year |
1 city · choose how to order them
With 729,019 residents in 2024, Denver County ranks 2nd by population among Colorado's 64 counties and is home to 12.2% of the state's residents.
Its population went from 555,651 in 2000 to 729,019 in 2024, a change of +31.2%, compared with +37.7% for Colorado as a whole.
In the year to July 2024 the county recorded 8,576 births and 5,195 deaths, so births outnumbered deaths by 3,381.
Annual Census estimates since 2000 put the county's highest population in 2024, at 729,019.
Denver County has about 4762.5 residents per square mile of land, ranking 1st of 64 counties; Colorado averages 57.5.
With a median household income of $94,718 (ACS 2020–2024 5-year), the county ranks 15th of 64 Colorado counties; the state median is $95,470.
Its economy produced $128.5 billion of GDP in 2024 (BEA), 1st largest among 64 Colorado counties.
Real GDP grew 1.9% in 2024, adjusted for inflation (BEA, chained 2017 dollars).