17 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 80525 | Fort Collins | 54,211 |
| 80538 | Loveland | 50,110 |
| 80537 | Loveland | 44,425 |
| 80526 | Fort Collins | 44,326 |
| 80524 | Fort Collins | 40,030 |
| 80521 | Fort Collins | 38,776 |
| 80528 | Fort Collins | 24,960 |
| 80513 | Berthoud | 18,271 |
| 80549 | Wellington | 14,325 |
| 80517 | Estes Park | 9,657 |
| 80547 | Timnath | 8,821 |
| 80536 | Livermore | 2,383 |
| 80512 | Bellvue | 1,903 |
| 80535 | Laporte | 1,896 |
| 80545 | Red Feather Lakes | 937 |
| 80515 | Drake | 934 |
| 80532 | Glen Haven | 185 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 17 ZCTAs in Larimer County, Colorado (US Census).