ZIP codes in Baca County
8 ZIPs touch Baca County, Colorado. The blue dashed line is the county border; orange ZIPs reach into it.
8
ZIP codes
4
cross the county line
8,848
people in these ZIPs
64
counties in CO
Most people
Baca County ZIP list
More counties in Colorado
- Adams County44
- Alamosa County6
- Arapahoe County41
- Archuleta County6
- Bent County7
- Boulder County30
- Broomfield County7
- Chaffee County7
- Cheyenne County5
- Clear Creek County6
Questions people actually ask
How many ZIP codes are in Baca County, Colorado?
8 ZIP codes reach into Baca County. 4 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Baca County has the most people?
81054 (Las Animas) has about 4,729 residents, the most of any ZIP touching Baca County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Baca 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 Baca 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