Montrose County, Colorado
County seat: Montrose · Population 44,591 (2025) · 2,241 sq mi
Montrose County is the 17th most populous of Colorado's 64 counties, with 44,591 people (2025 estimate). Its county seat is Montrose. It is part of the Region 10: Central Western Slope region, one of the 14 Planning and Management Regions of Colorado. The map shows its 4 cities and towns and the 7 neighboring counties.
Montrose County facts
- County seat
- Montrose
- Population (2025 estimate)
- 44,591 +4.5% since 2020
- Land area
- 2,241 sq mi 16th largest of 64
- Water area
- 2 sq mi
- Population density
- 20 per sq mi
- Established
- 1883
- Named after
- Montrose city in and seat of Montrose County, Colorado, United States
- Largest city
- Montrose 21,583
- Median household income
- $72,120
- Cities and towns
- 4 plus 1 CDPs
- ZIP codes
- 12
- Time zone
- Mountain
- FIPS code
- 08085
Cities and towns in Montrose County
Montrose County has 4 incorporated cities, towns and villages. Populations count the people living inside Montrose County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Montrose (county seat) | City | 21,583 | |
| Olathe | Town | 1,927 | |
| Nucla | Town | 577 | |
| Naturita | Town | 478 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Redvale | 389 |
ZIP codes in Montrose County
12 ZIP codes reach into Montrose County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 81220 also Gunnison County
- 81401
- 81403 also Ouray County
- 81411
- 81415 also Delta County
- 81416 also Delta County
- 81422
- 81423 also San Miguel County
- 81424
- 81425
- 81429
- 81431 also San Miguel County
Population of Montrose County, 2020–2025
Montrose County grew by 1,907 people (+4.5%) between April 2020 and July 2025: 889 more deaths than births and a net gain of 2,795 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 42,825 |
| 2021 | 43,247 |
| 2022 | 43,838 |
| 2023 | 44,238 |
| 2024 | 44,687 |
| 2025 | 44,591 |
Neighboring counties
- San Miguel County south · 7,753 people
- Ouray County southeast · 5,265 people
- Mesa County north · 162,845 people
- Delta County northeast · 32,178 people
- Gunnison County east · 17,439 people
- San Juan County, Utah southwest · 14,542 people
- Grand County, Utah northwest · 9,790 people
Printable Montrose County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (75 KB)
- PNG (2400 px) (67 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
Back to the Colorado county map with all 64 counties. Found an error? Tell us.