Villes les plus peuplées de France démarrant par I
| Ville | Département | Population | Superficie en km² | Densité | Altitude |
| Issy-les-Moulineaux (92130) | Hauts-de-Seine | 64355 | 4.25 | 15142 | 28-96 |
| Ivry-sur-Seine (94200) | Val-de-Marne | 57732 | 6.1 | 9464 | 28-68 |
| Istres (13118-13800) | Bouches-du-Rhône | 42544 | 113.73 | 374 | 0-120 |
| Illkirch-Graffenstaden (67400) | Bas-Rhin | 26805 | 22.21 | 1206 | 139-146 |
| Illzach (68110) | Haut-Rhin | 14596 | 7.5 | 1946 | 228-237 |
| Issoire (63500) | Puy-de-Dôme | 14012 | 19.69 | 711 | 360-560 |
| Issoudun (36100) | Indre | 13090 | 36.6 | 357 | 122-161 |
| Ifs (14123) | Calvados | 11028 | 9.06 | 1217 | 19-61 |
| Igny (91430) | Essonne | 10336 | 3.82 | 2705 | 62-154 |
| Isbergues (62330) | Pas-de-Calais | 9289 | 14.37 | 646 | 16-44 |
| Irigny (69540) | Rhône | 8320 | 8.84 | 941 | 155-271 |
| Ingré (45140) | Loiret | 7899 | 20.82 | 379 | 103-133 |
| Isle (87170) | Haute-Vienne | 7534 | 20.18 | 373 | 208-346 |
| Itteville (91760) | Essonne | 6575 | 12.2 | 538 | 47-141 |
| Inzinzac-Lochrist (56650) | Morbihan | 6013 | 44.67 | 134 | 2-111 |
| Izon (33450) | Gironde | 5370 | 15.59 | 344 | 1-21 |
| Ille-sur-Têt (66130) | Pyrénées-Orientales | 5266 | 31.67 | 166 | 110-446 |
| Ingersheim (68040) | Haut-Rhin | 4696 | 7.44 | 631 | 196-326 |
| Issou (78440) | Yvelines | 4539 | 4.8 | 945 | 17-127 |
| Iffendic (35750) | Ille-et-Vilaine | 4291 | 73.66 | 58 | 32-134 |
| Is-sur-Tille (21120) | Côte-d’Or | 4183 | 22.53 | 185 | 262-408 |
| Ingwiller (67340) | Bas-Rhin | 4156 | 18.05 | 230 | 185-371 |
| Indre (44610) | Loire-Atlantique | 4006 | 4.72 | 848 | 0-26 |
| Idron (64320) | Pyrénées-Atlantiques | 3983 | 7.78 | 511 | 188-251 |
Les autres villes de France démarrant par I
Ib
Ibarrolle (64120), Ibigny (57830), Ibos (65420)
Ic
Ichtratzheim (67640), Ichy (77890)
Id
Idaux-Mendy (64130), Idrac-Respaillès (32300), Ids-Saint-Roch (18170)
If
Iffs (35630), Ifs (76630)
Ig
Igé (61130), Igé (71960), Ignaucourt (80720), Ignaux (09110), Igney (54450), Igney (88150), Ignol (18350), Igny (70700), Igny-Comblizy (51700), Igon (64800), Igornay (71540), Igoville (27460), Iguerande (71340)
Il
Ilharre (64120), Ilhat (09300), Ilhes (11380), Ilhet (65410), Ilheu (65370), Illange (57110), Illartein (09800), Illats (33720), Illeville-sur-Montfort (27290), Illfurth (68720), Illhaeusern (68970), Illiat (01140), Illier-et-Laramade (09220), Illiers-Combray (28120), Illiers-l’evêque (27770), Illies (59480), Illifaut (22230), Illois (76390), Illoud (52150), Illy (08200), Ilonse (06420)
Im
Imbleville (76890), Imécourt (08240), Imling (57400), Imphy (58160)
In
Inaumont (08300), Incarville (27400), Incheville (76117), Inchy (59540), Inchy-en-Artois (62860), Incourt (62770), Indevillers (25470), Ineuil (18160), Infournas (05500), Ingenheim (67270), Inghem (62129), Inglange (57110), Ingolsheim (67250), Ingouville (76460), Ingrandes (36300), Ingrandes (49123), Ingrandes (86220), Ingrandes-de-Touraine (37140), Ingrannes (45450), Inguiniel (56240), Injoux-Génissiat (01200), Innenheim (67880), Innimond (01680), Inor (55700), Insming (57670), Insviller (57670), Intraville (76630), Intres (07320), Intréville (28310), Intville-la-Guétard (45300), Inval-Boiron (80430), Inxent (62170)
Ip
Ippécourt (55220), Ippling (57990)
Ir
Iracoubo (97350), Irai (61190), Irais (79600), Irancy (89290), Iré-le-Sec (55600), Irissarry (64780), Irles (80300), Irodouër (35850), Iron (02510), Irouléguy (64220), Irreville (27930), Irvillac (29460)
Is
Isches (88320), Isdes (45620), Isenay (58290), Is-en-Bassigny (52140), Isigny-le-Buat (50540), Isigny-sur-Mer (14230), Island (89200), Isle-Aubigny (10240), Isle-Aumont (10800), Isle-et-Bardais (03360), Isle-Saint-Georges (33640), Isles-Bardel (14690), Isles-les-Meldeuses (77440), Isles-lès-Villenoy (77450), Isles-sur-Suippe (51110), Isle-sur-Marne (51290), Islettes (55120), Isneauville (76230), Isola (06420), Isolaccio-di-Fiumorbo (20243), Isômes (52190), Ispagnac (48320), Ispoure (64220), Isques (62360), Issac (24400), Issamoulenc (07190), Issancourt-et-Rumel (08440), Issanlas (07510), Issans (25550), Issards (09100), Issarlès (07470), Issé (44520), Issé (51150), Issel (11400), Issendolus (46500), Issenhausen (67330), Issenheim (68500), Issepts (46320), Isserpent (03120), Isserteaux (63270), Issigeac (24560), Issirac (30760), Issor (64570), Issoudun-Létrieix (23130), Issus (31450), Issy-l’evêque (71760), Istres-et-Bury (51190), Isturits (64240)
It
Itancourt (02240), Iteuil (86240), Ittenheim (67117), Itterswiller (67140), Itxassou (64250), Itzac (81170)
Iv
Ivergny (62810), Iverny (77165), Iviers (02360), Iville (27110), Ivors (60141), Ivory (39110), Ivoy-le-Pré (18380), Ivrey (39110), Ivry-en-Montagne (21340), Ivry-la-Bataille (27540), Ivry-le-Temple (60173)
Iw
Iwuy (59141)
Iz
Izaourt (65370), Izaut-de-l’Hôtel (31160), Izaux (65250), Izé (53160), Izeaux (38140), Izel-lès-equerchin (62490), Izel-lès-Hameau (62690), Izenave (01430), Izernore (01580), Izeron (38160), Izeste (64260), Izeure (21110), Izier (21110), Izieu (01300), Izon-la-Bruisse (26560), Izotges (32400)