Water hardness in Greece
134 cities with published hardness data, sorted by population. Median: 237 mg/L.
Median
237 mg/L
very hard
- 5 soft
- 3 moderately hard
- 35 hard
- 91 very hard
Greek utilities report total hardness in mg/L CaCO₃.
Ranking of the hardest and softest water in Greece →
Regions
- Attica25 · 150 mg/L
- Central Greece4 · 209 mg/L
- Central Macedonia47 · 300 mg/L
- Crete23 · 260 mg/L
- East Macedonia and Thrace9 · 231 mg/L
- Peloponnese6 · 337 mg/L
- Thessaly7 · 252 mg/L
- West Greece11 · 225 mg/L
Largest places, hardest first
Every place is listed on its region page.
| mg/L | mg/L | ||
|---|---|---|---|
| Gazi · Crete | 555 | 555 | very hard |
| Loutraki · Peloponnese | 475 | 475 | very hard |
| Rio · West Greece | 383 | 383 | very hard |
| Rethymno · Crete | 380 | 380 | very hard |
| Polygyros · Central Macedonia | 368 | 368 | very hard |
| Kilkis · Central Macedonia | 325 | 325 | very hard |
| Chortiatis · Central Macedonia | 322 | 322 | very hard |
| Thermi · Central Macedonia | 300 | 300 | very hard |
| Serres · Central Macedonia | 277 | 277 | very hard |
| Heraklion · Crete | 267 | 267 | very hard |
| Pefka · Central Macedonia | 259 | 259 | very hard |
| Agios Nikolaos · Crete | 251 | 251 | very hard |
| Thessaloníki · Central Macedonia | 245 | 245 | very hard |
| Kalamariá · Central Macedonia | 245 | 245 | very hard |
| Évosmos · Central Macedonia | 245 | 245 | very hard |
| Nea Alikarnassos · Crete | 233 | 233 | very hard |
| Tripoli · Peloponnese | 215 | 215 | very hard |
| Lamía · Central Greece | 175 | 175 | hard |
| Chania · Crete | 158 | 158 | hard |
| Patras · West Greece | 155 | 155 | hard |
| Athens · Attica | 150 | 150 | hard |
| Piraeus · Attica | 150 | 150 | hard |
| Peristéri · Attica | 150 | 150 | hard |
| Kallithéa · Attica | 150 | 150 | hard |
| Acharnés · Attica | 150 | 150 | hard |
| Níkaia · Attica | 150 | 150 | hard |
| Glyfáda · Attica | 150 | 150 | hard |
| Ílion · Attica | 150 | 150 | hard |
| Ilioúpoli · Attica | 150 | 150 | hard |
| Keratsíni · Attica | 150 | 150 | hard |
| Khalándrion · Attica | 150 | 150 | hard |
| Néa Smýrni · Attica | 150 | 150 | hard |
| Maroúsi · Attica | 150 | 150 | hard |
| Agios Dimitrios · Attica | 150 | 150 | hard |
| Zográfos · Attica | 150 | 150 | hard |
| Aigáleo · Attica | 150 | 150 | hard |
| Néa Ionía · Attica | 150 | 150 | hard |
| Palaió Fáliro · Attica | 150 | 150 | hard |
| Korydallós · Attica | 150 | 150 | hard |
| Výronas · Attica | 150 | 150 | hard |
| Agía Paraskeví · Attica | 150 | 150 | hard |
| Galátsi · Attica | 150 | 150 | hard |
| Petroúpolis · Attica | 150 | 150 | hard |
| Irákleio · Attica | 150 | 150 | hard |
| Fylí · Attica | 150 | 150 | hard |
| Komotini · East Macedonia and Thrace | 30 | 30 | soft |