9 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 81212 | Canon City | 32,146 |
| 81226 | Florence | 8,221 |
| 81240 | Penrose | 4,386 |
| 81223 | Cotopaxi | 2,023 |
| 81233 | Howard | 1,019 |
| 81244 | Rockvale | 553 |
| 81221 | Coal Creek | 452 |
| 81222 | Coaldale | 379 |
| 81232 | Hillside | 32 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 9 ZCTAs in Fremont County, Colorado (US Census).