ZIP codes in Montrose County
13 ZIPs touch Montrose County, Colorado. The blue dashed line is the county border; orange ZIPs reach into it.
13
ZIP codes
6
cross the county line
61,575
people in these ZIPs
64
counties in CO
Most people
Montrose County ZIP list
More counties in Colorado
- Lincoln County11
- Logan County9
- Mesa County20
- Mineral County3
- Moffat County8
- Montezuma County8
- Morgan County10
- Otero County7
- Ouray County3
- Park County12
- Phillips County4
- Pitkin County8
Questions people actually ask
How many ZIP codes are in Montrose County, Colorado?
13 ZIP codes reach into Montrose County, including 1 PO Box or single-address ZIPs placed by the town they serve. 6 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Montrose County has the most people?
81401 (Montrose) has about 24,228 residents, the most of any ZIP touching Montrose County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Montrose County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Montrose County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from