Fort Collins, CO ZIP Codes
Fort Collins, Colorado has 9 ZIP codes: 5 for street addresses (, , , and ), 2 for PO boxes and 2 for single organizations.
Your street decides which one you use.
Which Fort Collins ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Fort Collins ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
80522, 80523, 80527 and 80553 have no area on the map: they are PO box or single-organization ZIP codes. Dashed line: Fort Collins city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Fort Collins ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 80521 | street delivery Old Town |
| 80522 | PO boxes at the Old Town post office Old Town |
| 80523 | one organization Old Town |
| 80524 | street delivery Old Town |
| 80525 | street delivery Fort Collins Sorting and Delivery Center |
| 80526 | street delivery Fort Collins Sorting and Delivery Center |
| 80527 | PO boxes at the Fort Collins Sorting and Delivery Center post office Fort Collins Sorting and Delivery Center |
| 80528 | street delivery Fort Collins Sorting and Delivery Center |
| 80553 | one organization Fort Collins Sorting and Delivery Center |
Why your mail may say Fort Collins when you live outside it
Fort Collins ZIP codes also cover Laporte, so a letter addressed to Fort Collins can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Larimer County property records show which city you are in.
Fort Collins ZIP code questions
What is the main ZIP code for Fort Collins?
80525, the ZIP code of the main Fort Collins Sorting and Delivery Center post office at 301 Boardwalk Dr.
Which Fort Collins ZIP codes are for PO boxes only?
80522 and 80527. Mail to them goes to boxes at the post office, not to street addresses.
What county is Fort Collins in?
Larimer County.
ZIP codes for towns near Fort Collins
More towns near Fort Collins: Lafayette, Broomfield, Cheyenne, Brighton, Thornton, Northglenn, Westminster, Commerce City, Arvada.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections