The following is a list of the 40 municipalities ( comuni ) of the Province of Fermo in the region of Marche in Italy.
| Municipality | Population (2025) [1] | Area (km²) [2] | Density |
|---|---|---|---|
| Altidona | 3,748 | 12.97 | 289.0 |
| Amandola | 3,222 | 69.50 | 46.4 |
| Belmonte Piceno | 550 | 10.53 | 52.2 |
| Campofilone | 1,903 | 12.21 | 155.9 |
| Falerone | 3,166 | 24.61 | 128.6 |
| Fermo | 35,727 | 124.53 | 286.9 |
| Francavilla d'Ete | 908 | 10.20 | 89.0 |
| Grottazzolina | 3,241 | 9.26 | 350.0 |
| Lapedona | 1,149 | 14.93 | 77.0 |
| Magliano di Tenna | 1,385 | 7.93 | 174.7 |
| Massa Fermana | 845 | 7.73 | 109.3 |
| Monsampietro Morico | 594 | 9.76 | 60.9 |
| Montappone | 1,538 | 10.41 | 147.7 |
| Monte Giberto | 728 | 12.53 | 58.1 |
| Monte Rinaldo | 308 | 7.92 | 38.9 |
| Monte San Pietrangeli | 2,170 | 18.45 | 117.6 |
| Monte Urano | 7,807 | 16.72 | 466.9 |
| Monte Vidon Combatte | 404 | 11.17 | 36.2 |
| Monte Vidon Corrado | 675 | 5.95 | 113.4 |
| Montefalcone Appennino | 358 | 15.99 | 22.4 |
| Montefortino | 1,019 | 78.62 | 13.0 |
| Montegiorgio | 6,244 | 47.45 | 131.6 |
| Montegranaro | 12,437 | 31.42 | 395.8 |
| Monteleone di Fermo | 344 | 8.21 | 41.9 |
| Montelparo | 685 | 21.63 | 31.7 |
| Monterubbiano | 1,978 | 32.24 | 61.4 |
| Montottone | 895 | 16.38 | 54.6 |
| Moresco | 525 | 6.35 | 82.7 |
| Ortezzano | 734 | 7.08 | 103.7 |
| Pedaso | 2,865 | 3.85 | 744.2 |
| Petritoli | 2,115 | 24.00 | 88.1 |
| Ponzano di Fermo | 1,604 | 14.27 | 112.4 |
| Porto San Giorgio | 15,547 | 8.79 | 1,768.7 |
| Porto Sant'Elpidio | 25,760 | 18.13 | 1,420.8 |
| Rapagnano | 1,926 | 12.65 | 152.3 |
| Sant'Elpidio a Mare | 16,398 | 50.52 | 324.6 |
| Santa Vittoria in Matenano | 1,135 | 26.18 | 43.4 |
| Servigliano | 2,169 | 18.49 | 117.3 |
| Smerillo | 326 | 11.29 | 28.9 |
| Torre San Patrizio | 1,825 | 11.93 | 153.0 |