County Maps US

Denver County, Colorado

A county in Colorado, ranked 2 of 64 by population.

CountyFIPS 08031

Within Colorado
Denver County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Denver, the county seat, located via the 2025 Census Gazetteer.

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Population
740,613
+22,933 (+3.2%) since 2020
Land area
153.1
square miles. A further 1.1% of the total area is water
Population density
4,838
people per square mile, computed rather than published
County seat
Denver
Seat of county government.
Established
Not available
Largest city
Denver city
Population 740,613.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Denver County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Denver County, Colorado from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 632 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Denver County ranks

Position among the 64 counties of Colorado, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn ColoradoNationally
Population740,6132nd of 6494th of 3,144
Land area153.1 sq mi62nd of 643,055th of 3,144
Population density4,838 per sq mi1st of 6420th of 3,144
Median household income$94,71815th of 64227th of 3,143

Full data for Denver County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population740,613Vintage 2025 Population Estimates
Population in 2020717,680Vintage 2025 Population Estimates
2020 estimates base?715,509Vintage 2025 Population Estimates
Land area153.1 sq mi2025 Gazetteer Files
Water area1.7 sq mi2025 Gazetteer Files
Total area154.7 sq mi2025 Gazetteer Files
Population density?4,838 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$94,718American Community Survey 2020-2024 5-Year Estimates
Median home value$616,000American Community Survey 2020-2024 5-Year Estimates
Median age35.3American Community Survey 2020-2024 5-Year Estimates
Households335,428American Community Survey 2020-2024 5-Year Estimates
Housing units359,581American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+4,197
9,287 births, 5,090 deaths
Net migration
-5,152
More people moved out than moved in.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 3 areas bordering Denver County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Adams CountyColorado72 mi554,668
Arapahoe CountyColorado57 mi673,820
Jefferson CountyColorado33 mi580,451

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

Side by side

All 64 counties of Colorado

Open the interactive Colorado county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.