Denver County, Colorado Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 2nd-largest in Colorado
The population of Denver County, Colorado is 713,734 as of the 2023 American Community Survey, making it the 2nd-largest county in Colorado. The median household income is $91,681, the median home value is $586,700, and the median age is 35.2.
The population of Denver County has grown 20.9% since 2010 (603,012 → 729,019), a +1.36% annualized rate.
713,734
Population
+1.36%
Annual growth
4663
People / sq mi
$91,681
Median Income
$586,700
Median Home Value
Denver County covers 153 sq mi of land at 4662.7 people per square mile.
About Denver County, CO
What distinguishes Denver County is density: among the most densely settled of US counties, around 4,663 people per square mile. With 713,734 residents, Denver County is a county in Colorado. It is the #2-largest of all counties in Colorado nationally.
Income is a real outlier — the median household pulls in $91,681, putting Denver County near the top of US counties. About 7.7% of residents live below the federal poverty level, below the national 12.4%. Home prices are steep, with the typical property valued at $586,700, with typical rent around $1,770.
Denver County is among the best-educated US counties: 55.6% of adults 25 and older hold a bachelor’s degree, above the national 35.0%. An unusually large 24.4% of workers are remote, above the national 14.0%, and the average commute runs about 25 minutes each way.
That density explains much of the rest of the profile in Denver County: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Denver County Population History (2010-2024)
The county of Denver County had a population of 603,012 in 2010 and 729,019 in 2024, a 20.9% growth over 14 years. The peak was 729,019 in 2024. Average annual growth rate: 1.37%.
729,019
Population (2024)
603,012
Population (2010)
729,019
Peak (2024)
1.37%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 603,012 |
| 2011 | 620,250 |
| 2012 | 634,965 |
| 2013 | 649,270 |
| 2014 | 664,540 |
| 2015 | 683,328 |
| 2016 | 696,273 |
| 2017 | 704,869 |
| 2018 | 716,340 |
| 2019 | 725,508 |
| 2020 | 717,620 |
| 2021 | 711,530 |
| 2022 | 714,851 |
| 2023 | 721,367 |
| 2024 | 729,019 |
Race & Ethnicity
| White | 62.9% |
| Black or African American | 8.8% |
| Asian | 0.1% |
| Hispanic or Latino (any race) | 2.9% |
| Two or More Races | 0.0% |
Age & Sex
35.2
Median Age
49.6%
Female
50.4%
Male
12.3%
Age 65+
Age Distribution
Children (under 15): 15.5% · Seniors (65+): 12.3%
Income & Poverty
| Median household income | $91,681$-789 vs state |
| Mean household income | $131,349 |
| Per-capita income | $61,202 |
| Poverty rate | 7.7%+1.8% vs state |
| Unemployment rate | 3.4% |
| Employment-to-population | 70.7% |
Top Industries by Employment
The largest employment sector in Denver County is professional & business services, accounting for 21.9% of workers.
How residents commute
4.5%
Drive alone
3.9%
Carpool
57.7%
Public transit
24.4%
Work from home
25.4 min
Avg commute
Housing
$586,700+$84,500 vs state
Median home value
$1,770
Median rent
49.1%
Homeownership rate
352,593
Total housing units
93.5%
Occupied
6.5%
Vacant
50.9%
Renter-occupied
Social & access
91.2%
With health insurance
97.0%
With broadband internet
46.7%
Foreign-born
4.7%
Veterans (18+)
10.1%
With a disability
76.4%
Speak language other than English at home
Education
91.4%
High School+
55.6%
Bachelor's+
Largest cities in Colorado
Other counties in Colorado
Part of Colorado
Metro areas in Colorado
County rankings
Common questions about Denver County, CO
Frequently Asked Questions
Denver County, Colorado has a population of 713,734 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 2nd-largest county in Colorado. Population density is 4663 people per square mile.
The population of Denver County has grown 20.9% since 2010 (603,012 → 729,019), a +1.36% annualized rate.
The median household income in Denver County, Colorado is $91,681, with mean (average) household income of $131,349 and per-capita income of $61,202. 7.7% of residents live below the federal poverty level.
In Denver County, the largest racial and ethnic groups are White (62.9%), Black or African American (8.8%), Hispanic or Latino (2.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Denver County, Colorado is 35.2 years. Residents are 49.6% female and 50.4% male.
The median home value in Denver County is $586,700 and median monthly rent is $1,770. 49.1% of occupied housing units are owner-occupied. The county has 352,593 total housing units, 6.5% of which are vacant.
The largest employment sector in Denver County, Colorado is professional, scientific, and management services, employing 21.9% of workers. The unemployment rate is 3.4%.
Denver is among the largest cities associated with Denver County, Colorado, with a population of 713,734.
Denver County, CO Climate
Denver County, CO has an average annual temperature of 10.3°C (51°F) and receives about 409 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
10.3°C
Avg Temp
409
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -1° / 30° | 12 mm |
| February | 1° / 34° | 12 mm |
| March | 5° / 40° | 34 mm |
| April | 9° / 48° | 49 mm |
| May | 14° / 58° | 61 mm |
| June | 20° / 68° | 45 mm |
| July | 23° / 74° | 52 mm |
| August | 22° / 72° | 43 mm |
| September | 17° / 63° | 34 mm |
| October | 11° / 51° | 27 mm |
| November | 3° / 38° | 25 mm |
| December | -1° / 31° | 15 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Denver County, CO
The most comfortable months to visit Denver County, CO are typically August, June and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 32°C high). The coldest is January (near -9°C low). May is usually the wettest month.
Where to stay near Denver County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.