Fort Collins, Colorado ZIP Codes
- ZIP records
5 - Sum of listed ZIP population estimates
202,303 - Counties represented
1 - Population range
24,960–54,211 per ZIP
Population sum includes positive estimates in these ZIP records; it is not an official city population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | County | Population estimate |
|---|---|---|---|---|
| 1 | 80525 | Fort Collins | Larimer | 54,211 |
| 2 | 80526 | Fort Collins | Larimer | 44,326 |
| 3 | 80524 | Fort Collins | Larimer | 40,030 |
| 4 | 80521 | Fort Collins | Larimer | 38,776 |
| 5 | 80528 | Fort Collins | Larimer | 24,960 |
Counties represented
All ZIP Codes in Fort Collins
- ZIP 80521 — Larimer County
- ZIP 80524 — Larimer County
- ZIP 80525 — Larimer County
- ZIP 80526 — Larimer County
- ZIP 80528 — Larimer County
Browse all ZIP data for Colorado
Methodology: ZIP records are grouped by the source file's primary city and state fields. Population ranges and sums use positive ZIP-level estimates; sums should not be read as official city totals. County links use each record's listed county assignment.