Hardest and softest tap water in Germany
All 809 cities in Germany with published data, ranked by total hardness. The national median is 11.5 °dH.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
25 cities with the hardest water
| # | °dH | mg/L | ||
|---|---|---|---|---|
| 1 | Würzburg · Bayern | 40.4 | 721 | very hard |
| 2 | Gerbrunn · Bayern | 38.6 | 689 | very hard |
| 3 | Nußloch · Baden-Württemberg | 31.6 | 564 | very hard |
| 4 | Rinteln · Niedersachsen | 28.5 | 509 | very hard |
| 5 | Weißenfels · Sachsen-Anhalt | 28.4 | 507 | very hard |
| 6 | Vaihingen an der Enz · Baden-Württemberg | 28 | 500 | very hard |
| 7 | Coppenbrügge · Niedersachsen | 27.9 | 498 | very hard |
| 8 | Hameln · Niedersachsen | 27.8 | 496 | very hard |
| 9 | Ampfing · Bayern (Landkreis Mühldorf am Inn) | 26 | 464 | very hard |
| 10 | Northeim · Niedersachsen | 25.9 | 462 | very hard |
| 11 | Schlüsselfeld · Bayern (Landkreis Bamberg) | 25.6 | 457 | very hard |
| 12 | Creuzburg · Thüringen | 25.5 | 455 | very hard |
| 13 | Tangermünde · Sachsen-Anhalt | 25.4 | 453 | very hard |
| 14 | Leopoldshöhe · Nordrhein-Westfalen | 25.2 | 450 | very hard |
| 15 | Veitshöchheim · Bayern | 25.2 | 450 | very hard |
| 16 | Lübbenau/Spreewald · Brandenburg | 25 | 446 | very hard |
| 17 | Willebadessen · Nordrhein-Westfalen | 24.7 | 441 | very hard |
| 18 | Hiddenhausen · Nordrhein-Westfalen | 24.2 | 432 | very hard |
| 19 | Uffenheim · Bayern | 24.2 | 432 | very hard |
| 20 | Tuntenhausen · Bayern | 23.9 | 427 | very hard |
| 21 | Rimpar · Bayern (Landkreis Würzburg) | 23.7 | 423 | very hard |
| 22 | Lage · Nordrhein-Westfalen | 23.5 | 420 | very hard |
| 23 | Limburg an der Lahn · Hessen | 23.3 | 416 | very hard |
| 24 | Stahnsdorf · Brandenburg | 23.3 | 416 | very hard |
| 25 | Beilstein · Baden-Württemberg | 23 | 411 | very hard |
25 cities with the softest water
| # | °dH | mg/L | ||
|---|---|---|---|---|
| 1 | Hildesheim · Niedersachsen | 1.8 | 32 | soft |
| 2 | Münstertal (Schwarzwald) · Baden-Württemberg | 1.9 | 34 | soft |
| 3 | Eberbach · Baden-Württemberg | 2.1 | 38 | soft |
| 4 | Werdohl · Nordrhein-Westfalen | 2.3 | 41 | soft |
| 5 | Rodewisch · Sachsen | 2.3 | 41 | soft |
| 6 | Waldkirch · Baden-Württemberg | 2.5 | 45 | soft |
| 7 | Karlsfeld · Bayern | 2.6 | 46 | soft |
| 8 | Lüdenscheid · Nordrhein-Westfalen | 2.8 | 50 | soft |
| 9 | Liebenburg · Niedersachsen | 2.8 | 50 | soft |
| 10 | Olpe · Nordrhein-Westfalen | 2.9 | 52 | soft |
| 11 | Neuensalz · Sachsen | 2.9 | 52 | soft |
| 12 | Bergen · Sachsen | 2.9 | 52 | soft |
| 13 | Annweiler am Trifels · Rheinland-Pfalz | 2.9 | 52 | soft |
| 14 | Hermeskeil · Rheinland-Pfalz | 3 | 53 | soft |
| 15 | Falkenstein · Sachsen | 3 | 54 | soft |
| 16 | Ellefeld · Sachsen | 3 | 54 | soft |
| 17 | Hofgeismar · Hessen | 3.1 | 55 | soft |
| 18 | Haslach im Kinzigtal · Baden-Württemberg | 3.2 | 57 | soft |
| 19 | Wolfach · Baden-Württemberg | 3.3 | 59 | soft |
| 20 | Idar-Oberstein · Rheinland-Pfalz | 3.4 | 61 | moderately hard |
| 21 | Bad Wildbad · Baden-Württemberg | 3.4 | 61 | moderately hard |
| 22 | Neubulach · Baden-Württemberg | 3.5 | 62 | moderately hard |
| 23 | Sprockhövel · Nordrhein-Westfalen | 3.5 | 63 | moderately hard |
| 24 | Pfalzgrafenweiler · Baden-Württemberg (Landkreis Freudenstadt) | 3.5 | 63 | moderately hard |
| 25 | Neuenbürg · Baden-Württemberg (Enzkreis) | 3.5 | 63 | moderately hard |