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2026 ranking · natural disaster declarations

The towns in Brittany with the most officially recognized natural disasters

Morlaix (Finistère), Dinan (Côtes-d'Armor), Quimperlé (Finistère), and Redon (Ille-et-Vilaine) are tied for the most natural disaster declarations in Brittany: 18 declarations each since 1982.

1,202 towns ranked

Morlaix, 1stThe next 19

The podium

  1. 1stMorlaix 18since 1982 Finistère
  2. 2ndDinan 18since 1982 Côtes-d'Armor
  3. 3rdQuimperlé 18since 1982 Finistère

This ranking covers all 1,202 towns in Brittany. The table is split into pages of 100 towns. At the other end of the ranking, Saint-Symphorien (Ille-et-Vilaine) comes last with 0 declarations.

In France, a commune is the smallest unit of local government, from large cities to tiny villages. Paris, Lyon and Marseille are ranked as whole communes: their arrondissements (districts) have no rank of their own.

The ranking: most natural disaster declarations in Brittany

Rank Town Department Declarations since 1982 Proportional bar Population
1 tied Morlaix Finistère (29) 18 15,647
1 tied Dinan Côtes-d'Armor (22) 18 15,351
1 tied Quimperlé Finistère (29) 18 12,948
1 tied Redon Ille-et-Vilaine (35) 18 10,342
1 tied Guipry-Messac Ille-et-Vilaine (35) 18 7,524
6 tied Brest Finistère (29) 17 144,890
6 tied Plérin Côtes-d'Armor (22) 17 14,880
6 tied Baud Morbihan (56) 17 6,519
9 tied Quimper Finistère (29) 16 66,579
9 tied Landerneau Finistère (29) 16 16,975
9 tied Guichen Ille-et-Vilaine (35) 16 9,594
9 tied Goven Ille-et-Vilaine (35) 16 4,462
13 tied Ploërmel Morbihan (56) 15 10,688
13 tied Montfort-sur-Meu Ille-et-Vilaine (35) 15 6,993
13 tied Bréal-sous-Montfort Ille-et-Vilaine (35) 15 6,489
13 tied Bains-sur-Oust Ille-et-Vilaine (35) 15 3,665
17 tied Rennes Ille-et-Vilaine (35) 14 234,950
17 tied Bruz Ille-et-Vilaine (35) 14 20,113
17 tied Pacé Ille-et-Vilaine (35) 14 12,021
17 tied Bain-de-Bretagne Ille-et-Vilaine (35) 14 7,851
17 tied Crozon Finistère (29) 14 7,662
17 tied Châteaulin Finistère (29) 14 5,507
17 tied Scaër Finistère (29) 14 5,286
17 tied Muzillac Morbihan (56) 14 5,229
17 tied Plouha Côtes-d'Armor (22) 14 4,746
17 tied Iffendic Ille-et-Vilaine (35) 14 4,703
17 tied Pléneuf-Val-André Côtes-d'Armor (22) 14 4,108
17 tied Bon Repos sur Blavet Côtes-d'Armor (22) 14 1,290
29 tied Hennebont Morbihan (56) 13 16,385
29 tied Pontivy Morbihan (56) 13 15,490
29 tied Plougastel-Daoulas Finistère (29) 13 13,756
29 tied Le Relecq-Kerhuon Finistère (29) 13 12,171
29 tied Paimpol Côtes-d'Armor (22) 13 7,654
29 tied Saint-Martin-des-Champs Finistère (29) 13 4,886
29 tied Plouézec Côtes-d'Armor (22) 13 3,219
29 tied Caulnes Côtes-d'Armor (22) 13 2,634
29 tied Plénée-Jugon Côtes-d'Armor (22) 13 2,623
29 tied Malestroit Morbihan (56) 13 2,610
29 tied La Roche-Maurice Finistère (29) 13 1,925
29 tied Peillac Morbihan (56) 13 1,907
29 tied Loyat Morbihan (56) 13 1,787
29 tied Missiriac Morbihan (56) 13 1,229
29 tied Saint-Malo-de-Phily Ille-et-Vilaine (35) 13 1,108
29 tied Saint-Laurent-sur-Oust Morbihan (56) 13 403
45 tied Saint-Malo Ille-et-Vilaine (35) 12 48,675
45 tied Saint-Brieuc Côtes-d'Armor (22) 12 45,736
45 tied Lamballe-Armor Côtes-d'Armor (22) 12 17,746
45 tied Douarnenez Finistère (29) 12 14,425
45 tied Loudéac Côtes-d'Armor (22) 12 10,344
45 tied Chartres-de-Bretagne Ille-et-Vilaine (35) 12 9,012
45 tied Lesneven Finistère (29) 12 7,776
45 tied Perros-Guirec Côtes-d'Armor (22) 12 7,473
45 tied Pluméliau-Bieuzy Morbihan (56) 12 4,705
45 tied La Gacilly Morbihan (56) 12 4,093
45 tied Pleyben Finistère (29) 12 3,945
45 tied Plémet Côtes-d'Armor (22) 12 3,846
45 tied Audierne Finistère (29) 12 3,791
45 tied Châteauneuf-du-Faou Finistère (29) 12 3,733
45 tied Cléguer Morbihan (56) 12 3,521
45 tied Pont-Aven Finistère (29) 12 2,834
45 tied Saint-Vincent-sur-Oust Morbihan (56) 12 1,721
45 tied Saint-Nicolas-du-Pélem Côtes-d'Armor (22) 12 1,561
45 tied Irvillac Finistère (29) 12 1,440
45 tied Saint-Martin-sur-Oust Morbihan (56) 12 1,329
45 tied Minihy-Tréguier Côtes-d'Armor (22) 12 1,292
45 tied Tresbœuf Ille-et-Vilaine (35) 12 1,265
45 tied Cléden-Poher Finistère (29) 12 1,149
45 tied Gouarec Côtes-d'Armor (22) 12 884
69 tied Lannion Côtes-d'Armor (22) 11 21,041
69 tied Guipavas Finistère (29) 11 15,882
69 tied Languidic Morbihan (56) 11 8,205
69 tied Binic-Étables-sur-Mer Côtes-d'Armor (22) 11 7,254
69 tied Inzinzac-Lochrist Morbihan (56) 11 6,820
69 tied Dol-de-Bretagne Ille-et-Vilaine (35) 11 6,173
69 tied Plouigneau Finistère (29) 11 5,180
69 tied Lanvallay Côtes-d'Armor (22) 11 4,399
69 tied Pont-Péan Ille-et-Vilaine (35) 11 4,348
69 tied Bénodet Finistère (29) 11 3,924
69 tied Cléder Finistère (29) 11 3,692
69 tied Bourg-des-Comptes Ille-et-Vilaine (35) 11 3,474
69 tied Camors Morbihan (56) 11 3,323
69 tied La Roche-Jaudy Côtes-d'Armor (22) 11 3,290
69 tied Ploubazlanec Côtes-d'Armor (22) 11 3,059
69 tied Val d'Oust Morbihan (56) 11 2,890
69 tied Grâces Côtes-d'Armor (22) 11 2,661
69 tied Guiclan Finistère (29) 11 2,621
69 tied Santec Finistère (29) 11 2,534
69 tied Lanmeur Finistère (29) 11 2,433
69 tied Forges de Lanouée Morbihan (56) 11 2,311
69 tied Saint-Pabu Finistère (29) 11 2,145
69 tied Paimpont Ille-et-Vilaine (35) 11 1,812
69 tied Goudelin Côtes-d'Armor (22) 11 1,796
69 tied Rohan Morbihan (56) 11 1,562
69 tied Lanvénégen Morbihan (56) 11 1,164
69 tied Saint-Caradec Côtes-d'Armor (22) 11 1,156
69 tied Gouézec Finistère (29) 11 1,132
69 tied Saint-Perreux Morbihan (56) 11 1,130
69 tied Plounévez-Quintin Côtes-d'Armor (22) 11 1,092
69 tied Belle-Isle-en-Terre Côtes-d'Armor (22) 11 1,044
69 tied Saint-Congard Morbihan (56) 11 810

Source: French Ministry for the Ecological Transition, Géorisques (GASPAR database); natural disaster declarations by event and hazard since 1982. Tied values share the same rank. Data sources.

FAQ

Most natural disaster declarations in Brittany: FAQ

Which town in Brittany has had the most natural disaster declarations?

Morlaix (Finistère), Dinan (Côtes-d'Armor), Quimperlé (Finistère), and Redon (Ille-et-Vilaine) are tied for the most natural disaster declarations in Brittany: 18 declarations each since 1982.

What are the 10 towns in Brittany with the most natural disaster declarations?

In order: Morlaix (18 declarations), Dinan (18 declarations), Quimperlé (18 declarations), Redon (18 declarations), Guipry-Messac (18 declarations), Brest (17 declarations), Plérin (17 declarations), Baud (17 declarations), Quimper (16 declarations), and Landerneau (16 declarations).

How many towns in Brittany are ranked?

All of them: the 1,202 towns in Brittany appear in this ranking.

What does this ranking count?

Each interministerial order recognizing a state of natural disaster for one event and one type of hazard (flood, mudslide, drought, ground movement, storm…) counts as one, since 1982. Recognition allows insured losses to be compensated. The count also depends on the requests filed by each commune, so on its own it does not measure exposure to hazards, which Géorisques details address by address.

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