17 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 80525 | Fort Collins | 55,541 |
| 80538 | Loveland | 49,183 |
| 80537 | Loveland | 44,505 |
| 80526 | Fort Collins | 44,423 |
| 80524 | Fort Collins | 39,111 |
| 80521 | Fort Collins | 38,217 |
| 80528 | Fort Collins | 24,233 |
| 80513 | Berthoud | 16,997 |
| 80549 | Wellington | 14,132 |
| 80517 | Estes Park | 10,093 |
| 80547 | Timnath | 8,040 |
| 80536 | Livermore | 2,358 |
| 80535 | Laporte | 2,238 |
| 80512 | Bellvue | 1,702 |
| 80545 | Red Feather Lakes | 913 |
| 80515 | Drake | 786 |
| 80532 | Glen Haven | 162 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 17 ZCTAs in Larimer County, Colorado (US Census).