Zip Code 80521 — Fort Collins, CO
80521 is a ZIP Code associated with Fort Collins, CO, located within Larimer. The postal region supports an estimated population of 38,776 residents across Data Pending housing units, with a population density of 1,067.9 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (40.593720, -105.126800)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 80521 |
| Primary City | Fort Collins |
| State / Province | CO |
| County | Larimer |
| Total Population | 38,776 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 1,067.9 people/sq mi |
| Timezone | America/Denver |
How 80521 Compares
| Metric | ZIP 80521 | Larimer County | CO State Average |
|---|
| Population | 38,776 | 356,150 | 5,862,421 |
| Median Income | Data Pending | N/A | N/A |
| Population Density | 1,067.9 /sq mi | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →