ZIP codes in Rio Grande County
5 ZIPs touch Rio Grande County, Colorado. The blue dashed line is the county border; orange ZIPs reach into it.
5
ZIP codes
4
cross the county line
14,520
people in these ZIPs
64
counties in CO
Most people
Rio Grande County ZIP list
More counties in Colorado
- Park County12
- Phillips County4
- Pitkin County8
- Prowers County6
- Pueblo County20
- Rio Blanco County4
- Routt County13
- Saguache County9
- San Juan County2
- San Miguel County7
- Sedgwick County4
- Summit County5
Questions people actually ask
How many ZIP codes are in Rio Grande County, Colorado?
5 ZIP codes reach into Rio Grande County, including 1 PO Box or single-address ZIPs placed by the town they serve. 4 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Rio Grande County has the most people?
81144 (Monte Vista) has about 6,543 residents, the most of any ZIP touching Rio Grande County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Rio Grande 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 Rio Grande 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