County Maps US

Montrose County, Colorado

A county in Colorado, ranked 17 of 64 by population.

CountyFIPS 08085

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

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Population
44,591
+1,766 (+4.1%) since 2020
Land area
2,241
square miles. A further 0.1% of the total area is water
Population density
19.9
people per square mile, computed rather than published
County seat
Montrose
Seat of county government.
Established
1883
142 years ago
Largest city
Montrose city
Population 21,583.

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 Montrose 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 Montrose 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 387 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 Montrose 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
Population44,59117th of 641,104th of 3,144
Land area2,241 sq mi16th of 64249th of 3,144
Population density19.9 per sq mi26th of 642,248th of 3,144
Median household income$72,12035th of 641,039th of 3,143

Full data for Montrose County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population44,591Vintage 2025 Population Estimates
Population in 202042,825Vintage 2025 Population Estimates
2020 estimates base?42,684Vintage 2025 Population Estimates
Land area2,241 sq mi2025 Gazetteer Files
Water area1.9 sq mi2025 Gazetteer Files
Total area2,243 sq mi2025 Gazetteer Files
Population density?19.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$72,120American Community Survey 2020-2024 5-Year Estimates
Median home value$388,400American Community Survey 2020-2024 5-Year Estimates
Median age46.1American Community Survey 2020-2024 5-Year Estimates
Households18,069American Community Survey 2020-2024 5-Year Estimates
Housing units19,758American 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
-152
407 births, 559 deaths
Net migration
+53
More people moved in than moved out.

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

The 7 areas bordering Montrose 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
San Miguel CountyColorado59 mi7,753
Ouray CountyColorado54 mi5,265
Mesa CountyColorado49 mi162,845
Delta CountyColorado47 mi32,178
Gunnison CountyColorado33 mi17,439
San Juan CountyUtah24 mi14,542
Grand CountyUtaha single point9,790

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

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.