| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ciampino | city | Lazio | Italy | 41.80 | 12.60 | 830 | 171539 |
| Cicignano | city | Lazio | Italy | 42.35 | 12.53 | 830 | 6118 |
| Ciciliano | city | Lazio | Italy | 41.95 | 12.93 | 1669 | 6777 |
| Cinecitta | city | Lazio | Italy | 41.85 | 12.57 | 213 | 177744 |
| Cineto Romano | city | Lazio | Italy | 42.05 | 12.97 | 2509 | 5299 |
| Cisterna | city | Lazio | Italy | 41.58 | 12.82 | 203 | 23867 |
| Cisterna di Latina | city | Lazio | Italy | 41.58 | 12.82 | 203 | 23867 |
| Cisterna di Littoria | city | Lazio | Italy | 41.58 | 12.82 | 203 | 23867 |
| Cisterna di Roma | city | Lazio | Italy | 41.58 | 12.82 | 203 | 23867 |
| Cittaducale | city | Lazio | Italy | 42.38 | 12.95 | 1669 | 9683 |
| Cittareale | city | Lazio | Italy | 42.62 | 13.17 | 3615 | 1110 |
| Cittariali | city | Lazio | Italy | 42.62 | 13.17 | 3615 | 1110 |
| Civita Castellana | city | Lazio | Italy | 42.28 | 12.42 | 337 | 18355 |
| Civitavecchia | city | Lazio | Italy | 42.10 | 11.80 | 164 | 43407 |
| Civitella | city | Lazio | Italy | 42.20 | 13.17 | 2509 | 2701 |
| Civitella Cesi | city | Lazio | Italy | 42.22 | 12.02 | 830 | 3279 |
| Civitella Paganico | city | Lazio | Italy | 42.18 | 13.00 | 3349 | 1789 |
| Civitella San Paolo | city | Lazio | Italy | 42.20 | 12.58 | 337 | 10937 |
| Civitella d'Agliano | city | Lazio | Italy | 42.60 | 12.18 | 830 | 5870 |
| Civitella d’Agliano | city | Lazio | Italy | 42.60 | 12.18 | 830 | 5870 |