Water Hardness Atlas ZIP / postcode

Tap water hardness in Loire-Atlantique

We have published hardness data for 169 cities in Loire-Atlantique. The median is 15.4 °fH; the hardest water is in Fay-de-Bretagne (39.1 °fH), the softest in Vigneux-de-Bretagne (14.1 °fH).

100 % of these cities have hard or very hard water (over 120 mg/L).

Each dot is a place with published data; colour shows the hardness band.

Largest places, hardest first

°fHmg/L
Fay-de-Bretagne39.1391very hard
Plessé24.9249very hard
Saint-Gildas-des-Bois24.9249very hard
Guenrouet24.9249very hard
Fégréac24.9249very hard
Drefféac24.9249very hard
Sévérac24.9249very hard
Guérande22.9229very hard
La Baule-Escoublac22.9229very hard
Le Pouliguen22.9229very hard
Le Croisic22.9229very hard
Batz-sur-Mer22.9229very hard
Vallons-de-l'Erdre22.1221very hard
Nozay22220very hard
Saffré22220very hard
Joué-sur-Erdre22220very hard
Vay22220very hard
Le Gâvre22220very hard
La Grigonnais22220very hard
La Chevallerais22220very hard
Jans22220very hard
Puceul22220very hard
Abbaretz21.4214very hard
Erbray20.9209very hard
Moisdon-la-Rivière20.9209very hard
Issé20.9209very hard
Saint-Vincent-des-Landes20.9209very hard
La Meilleraye-de-Bretagne20.9209very hard
Nort-sur-Erdre20.3203very hard
Villeneuve-en-Retz20.2202very hard
Saint-Hilaire-de-Chaléons20.2202very hard
Paulx20.2202very hard
La Marne20.2202very hard
Saint-Étienne-de-Mer-Morte20200very hard
La Chapelle-sur-Erdre18.7187very hard
Machecoul-Saint-Même18.5185very hard
Châteaubriant17.9179hard
Prinquiau17.6176hard
Boussay17.4174hard
Ancenis-Saint-Géréon17.1171hard
Loireauxence17.1171hard
Mésanger17.1171hard
Vair-sur-Loire17.1171hard
Oudon17.1171hard
Couffé17.1171hard
Riaillé17.1171hard
Mouzeil17.1171hard
Teillé17.1171hard
Pannecé17.1171hard
La Roche-Blanche17.1171hard
Pouillé-les-Côteaux17.1171hard
Pontchâteau16.9169hard
Saint-Philbert-de-Grand-Lieu16.9169hard
Saint-Lumine-de-Coutais16.9169hard
Le Cellier16160hard
Saint-Mars-de-Coutais15.9159hard
Ligné15.7157hard
Saint-Mars-du-Désert15.7157hard
Petit-Mars15.7157hard
La Bernerie-en-Retz15.7157hard
Les Touches15.7157hard
Les Moutiers-en-Retz15.7157hard
Trans-sur-Erdre15.7157hard
Bouaye15.5155hard
Saint-Jean-de-Boiseau15.5155hard
Le Pellerin15.5155hard
Saint-Aignan-Grandlieu15.5155hard
Brains15.5155hard
Saint-Léger-les-Vignes15.5155hard
Saint-Nazaire15.4154hard
Pornichet15.4154hard
Trignac15.4154hard
Donges15.4154hard
Montoir-de-Bretagne15.4154hard
Saint-André-des-Eaux15.4154hard
Guémené-Penfao15.4154hard
Legé15.4154hard
La Chapelle-des-Marais15.4154hard
Saint-Joachim15.4154hard
Derval15.4154hard
Saint-Malo-de-Guersac15.4154hard
Besné15.4154hard
Marsac-sur-Don15.4154hard
Conquereuil15.4154hard
Herbignac15.2152hard
Saint-Lyphard15.2152hard
La Turballe15.2152hard
Saint-Molf15.2152hard
Piriac-sur-Mer15.2152hard
Mesquer15.2152hard
Assérac15.2152hard
Vertou15.1151hard
Basse-Goulaine15.1151hard
Clisson15.1151hard
Haute-Goulaine15.1151hard
La Haie-Fouassière15.1151hard
Gorges15.1151hard
Vieillevigne15.1151hard
Aigrefeuille-sur-Maine15.1151hard
Gétigné15.1151hard
Château-Thébaud15.1151hard
Maisdon-sur-Sèvre15.1151hard
La Planche15.1151hard
Saint-Hilaire-de-Clisson15.1151hard
Monnières15.1151hard
Saint-Lumine-de-Clisson15.1151hard
Remouillé15.1151hard
Saint-Fiacre-sur-Maine15.1151hard
Rougé15150hard
Soudan15150hard
Saint-Aubin-des-Châteaux15150hard
Sion-les-Mines15150hard
Lusanger15150hard
Pornic14.9149hard
Saint-Brevin-les-Pins14.9149hard
Chaumes-en-Retz14.9149hard
Sainte-Pazanne14.9149hard
Saint-Michel-Chef-Chef14.9149hard
La Plaine-sur-Mer14.9149hard
Mauves-sur-Loire14.9149hard
Saint-Nicolas-de-Redon14.9149hard
Rouans14.9149hard
Port-Saint-Père14.9149hard
Chauvé14.9149hard
Avessac14.9149hard
Vue14.9149hard
Préfailles14.9149hard
Cheix-en-Retz14.9149hard
Saint-Père-en-Retz14.8148hard
Frossay14.8148hard
Paimbœuf14.8148hard
Corsept14.8148hard
Saint-Viaud14.8148hard
Sucé-sur-Erdre14.6146hard
Nantes14.4144hard
Rezé14.4144hard
Couëron14.4144hard
Bouguenais14.4144hard
Les Sorinières14.4144hard
Sautron14.4144hard
La Montagne14.4144hard
Indre14.4144hard
Treillières14.1141hard
Savenay14.1141hard
Saint-Étienne-de-Montluc14.1141hard
Vigneux-de-Bretagne14.1141hard
Cordemais14.1141hard
Malville14.1141hard
La Chapelle-Launay14.1141hard
Le Temple-de-Bretagne14.1141hard

Other places (19)

All cities in France →