| Zip Code | Primary City | Secondary City | More Information |
| 80124 | Lone Tree | Littleton | Littleton population stats |
| 80120 | Littleton | Littleton | Littleton population stats |
| 80121 | Littleton | Littleton | Littleton population stats |
| 80122 | Littleton | Littleton | Littleton population stats |
| 80123 | Littleton | Littleton | Littleton population stats |
| 80125 | Littleton | Littleton | Littleton population stats |
| 80126 | Littleton | Littleton | Littleton population stats |
| 80127 | Littleton | Littleton | Littleton population stats |
| 80129 | Littleton | Littleton | Littleton population stats |
| 80130 | Littleton | Littleton | Littleton population stats |
| 80160 | Littleton | Littleton | Littleton population stats |
| 80161 | Littleton | Littleton | Littleton population stats |
| 80162 | Littleton | Littleton | Littleton population stats |
| 80163 | Littleton | Littleton | Littleton population stats |
| 80165 | Littleton | Littleton | Littleton population stats |
| 80166 | Littleton | Littleton | Littleton population stats |