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2026 ranking · departments

The departments of France with the best fiber coverage in 2026

Loire is the department with the best fiber coverage: 98.0%, ahead of Pas-de-Calais (98.0%) and Oise (97.9%).

100 departments ranked

Map of the departments of mainland France: choose a department

At the other end of the ranking, Martinique is the department with the weakest fiber coverage, with 71.6%.

The ranking covers the 100 departments in the database: the 96 in mainland France and four overseas departments (Guadeloupe, Martinique, French Guiana and Réunion); Mayotte is not included.

The ranking of departments: fiber coverage

Rank Department Region Premises with fiber (%) Proportional bar Population
1 Loire (42) Auvergne-Rhône-Alpes 98.0 788,024
2 Pas-de-Calais (62) Hauts-de-France 98.0 1,479,365
3 Oise (60) Hauts-de-France 97.9 846,757
4 Aisne (02) Hauts-de-France 97.7 534,380
5 Val-d'Oise (95) Île-de-France 97.7 1,290,942
6 Hauts-de-Seine (92) Île-de-France 97.6 1,670,575
7 Yvelines (78) Île-de-France 97.5 1,508,510
8 Cher (18) Centre-Val de Loire 97.4 305,233
9 Creuse (23) Nouvelle-Aquitaine 97.4 118,760
10 Corrèze (19) Nouvelle-Aquitaine 97.3 248,289
11 Indre-et-Loire (37) Centre-Val de Loire 97.3 631,334
12 Charente (16) Nouvelle-Aquitaine 97.2 361,286
13 Rhône (69) Auvergne-Rhône-Alpes 97.1 1,940,015
14 Nord (59) Hauts-de-France 97.1 2,645,946
15 Loire-Atlantique (44) Pays de la Loire 97.1 1,517,043
16 Indre (36) Centre-Val de Loire 97.0 221,574
17 Maine-et-Loire (49) Pays de la Loire 97.0 853,768
18 Saône-et-Loire (71) Bourgogne-Franche-Comté 97.0 564,938
19 Pyrénées-Atlantiques (64) Nouvelle-Aquitaine 96.9 725,655
20 Loir-et-Cher (41) Centre-Val de Loire 96.8 337,089
21 Tarn (81) Occitanie 96.8 407,233
22 Haute-Saône (70) Bourgogne-Franche-Comté 96.7 239,102
23 Mayenne (53) Pays de la Loire 96.7 314,446
24 Seine-Maritime (76) Normandy 96.7 1,281,667
25 Yonne (89) Bourgogne-Franche-Comté 96.6 340,359
26 Isère (38) Auvergne-Rhône-Alpes 96.6 1,324,225
27 tied Eure (27) Normandy 96.6 616,217
27 tied Doubs (25) Bourgogne-Franche-Comté 96.6 560,477
29 Sarthe (72) Pays de la Loire 96.5 579,227
30 Nièvre (58) Bourgogne-Franche-Comté 96.5 206,356
31 Vendée (85) Pays de la Loire 96.4 732,903
32 Marne (51) Grand Est 96.4 574,142
33 Côte-d'Or (21) Bourgogne-Franche-Comté 96.3 551,336
34 Loiret (45) Centre-Val de Loire 96.3 705,712
35 Charente-Maritime (17) Nouvelle-Aquitaine 96.0 688,067
36 Gironde (33) Nouvelle-Aquitaine 96.0 1,716,986
37 Val-de-Marne (94) Île-de-France 96.0 1,435,612
38 Haute-Marne (52) Grand Est 96.0 172,981
39 Essonne (91) Île-de-France 96.0 1,351,891
40 Paris (75) Île-de-France 95.9 2,119,412
41 Tarn-et-Garonne (82) Occitanie 95.9 271,650
42 Réunion (974) Réunion 95.8 899,660
43 Meuse (55) Grand Est 95.7 185,178
44 Deux-Sèvres (79) Nouvelle-Aquitaine 95.7 385,771
45 Alpes-de-Haute-Provence (04) Provence-Alpes-Côte d'Azur 95.6 172,385
46 Somme (80) Hauts-de-France 95.6 575,371
47 Alpes-Maritimes (06) Provence-Alpes-Côte d'Azur 95.5 1,142,503
48 Dordogne (24) Nouvelle-Aquitaine 95.5 427,558
49 Eure-et-Loir (28) Centre-Val de Loire 95.3 443,227
50 Haute-Vienne (87) Nouvelle-Aquitaine 95.2 379,464
51 Seine-Saint-Denis (93) Île-de-France 95.2 1,710,659
52 Territoire de Belfort (90) Bourgogne-Franche-Comté 95.1 143,144
53 Aube (10) Grand Est 95.1 317,296
54 Gard (30) Occitanie 95.1 784,471
55 Ardennes (08) Grand Est 95.1 271,604
56 Haute-Garonne (31) Occitanie 95.1 1,494,734
57 Jura (39) Bourgogne-Franche-Comté 95.1 266,940
58 Vosges (88) Grand Est 95.0 367,295
59 Seine-et-Marne (77) Île-de-France 95.0 1,484,180
60 Hérault (34) Occitanie 94.9 1,248,501
61 Gers (32) Occitanie 94.9 198,955
62 Hautes-Alpes (05) Provence-Alpes-Côte d'Azur 94.7 147,756
63 Lot-et-Garonne (47) Nouvelle-Aquitaine 94.7 341,487
64 Lozère (48) Occitanie 94.7 79,964
65 Var (83) Provence-Alpes-Côte d'Azur 94.7 1,135,585
66 Calvados (14) Normandy 94.5 722,979
67 Manche (50) Normandy 94.4 512,167
68 Lot (46) Occitanie 94.3 181,747
69 Savoie (73) Auvergne-Rhône-Alpes 94.2 460,217
70 Bas-Rhin (67) Grand Est 94.2 1,178,940
71 Landes (40) Nouvelle-Aquitaine 94.1 445,828
72 Vaucluse (84) Provence-Alpes-Côte d'Azur 94.1 582,656
73 Aude (11) Occitanie 93.9 387,874
74 Hautes-Pyrénées (65) Occitanie 93.9 237,032
75 Bouches-du-Rhône (13) Provence-Alpes-Côte d'Azur 93.8 2,112,170
76 Corse-du-Sud (2A) Corsica 93.8 170,548
77 Drôme (26) Auvergne-Rhône-Alpes 93.7 536,948
78 Vienne (86) Nouvelle-Aquitaine 93.6 449,082
79 Aveyron (12) Occitanie 93.2 289,413
80 Haute-Corse (2B) Corsica 92.8 189,722
81 Pyrénées-Orientales (66) Occitanie 92.6 504,938
82 Haut-Rhin (68) Grand Est 92.6 784,356
83 Ariège (09) Occitanie 92.4 159,684
84 Moselle (57) Grand Est 90.9 1,068,899
85 Ain (01) Auvergne-Rhône-Alpes 90.8 694,945
86 Orne (61) Normandy 90.6 282,417
87 Ille-et-Vilaine (35) Brittany 89.5 1,145,286
88 Finistère (29) Brittany 88.8 957,671
89 Guadeloupe (971) Guadeloupe 88.7 388,493
90 Morbihan (56) Brittany 88.2 804,597
91 Meurthe-et-Moselle (54) Grand Est 88.2 743,353
92 Ardèche (07) Auvergne-Rhône-Alpes 87.3 342,599
93 Côtes-d'Armor (22) Brittany 85.8 629,517
94 Puy-de-Dôme (63) Auvergne-Rhône-Alpes 83.9 678,624
95 Allier (03) Auvergne-Rhône-Alpes 82.6 341,713
96 Haute-Savoie (74) Auvergne-Rhône-Alpes 82.4 881,729
97 French Guiana (973) French Guiana 82.1 296,053
98 Haute-Loire (43) Auvergne-Rhône-Alpes 81.7 235,575
99 Cantal (15) Auvergne-Rhône-Alpes 80.6 148,813
100 Martinique (972) Martinique 71.6 364,348

Source: Arcep, Ma connexion internet. Share of premises (homes and business premises) eligible for fiber to the home (FTTH), according to Arcep: eligible premises of the communes divided by their total premises. Data sources.

FAQ

Departments and fiber coverage: FAQ

Which is the department with the best fiber coverage in France?

Loire, with 98.0%.

Which is the department with the weakest fiber coverage?

Martinique, with 71.6%.

What are the top five departments in the ranking?

In order: Loire (98.0%), Pas-de-Calais (98.0%), Oise (97.9%), Aisne (97.7%), and Val-d'Oise (97.7%).

How is the indicator calculated?

Share of premises (homes and business premises) eligible for fiber to the home (FTTH), according to Arcep: eligible premises of the communes divided by their total premises.

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