Hardest and softest tap water in the Netherlands
All 654 cities in the Netherlands with published data, ranked by total hardness. The national median is 7.5 °dH.
Dutch suppliers report °dH; most networks are softened centrally to 5.6–8.4 °dH.
25 cities with the hardest water
| # | °dH | mg/L | ||
|---|---|---|---|---|
| 1 | Beusichem · Gelderland | 12.4 | 221 | very hard |
| 2 | Buren · Gelderland | 11.8 | 211 | very hard |
| 3 | Helmond · North Brabant | 11.3 | 202 | very hard |
| 4 | Mierlo · North Brabant | 11.3 | 202 | very hard |
| 5 | Tiel · Gelderland | 11 | 196 | very hard |
| 6 | Dinxperlo · Gelderland | 10.8 | 193 | very hard |
| 7 | Roermond · Limburg | 10.8 | 193 | very hard |
| 8 | Maurik · Gelderland | 10.7 | 191 | very hard |
| 9 | Zoelen · Gelderland | 10.7 | 191 | very hard |
| 10 | Almkerk · North Brabant | 10.6 | 190 | very hard |
| 11 | Andel · North Brabant | 10.6 | 190 | very hard |
| 12 | Dussen · North Brabant | 10.6 | 190 | very hard |
| 13 | Genderen · North Brabant | 10.6 | 190 | very hard |
| 14 | Giessen · North Brabant | 10.6 | 190 | very hard |
| 15 | Hank · North Brabant | 10.6 | 190 | very hard |
| 16 | Heusden · North Brabant | 10.6 | 190 | very hard |
| 17 | Nieuwendijk · North Brabant | 10.6 | 190 | very hard |
| 18 | Rijswijk · North Brabant | 10.6 | 190 | very hard |
| 19 | Sleeuwijk · North Brabant | 10.6 | 190 | very hard |
| 20 | Veen · North Brabant | 10.6 | 190 | very hard |
| 21 | Werkendam · North Brabant | 10.6 | 190 | very hard |
| 22 | Woudrichem · North Brabant | 10.6 | 190 | very hard |
| 23 | Vriezenveen · Overijssel | 10.6 | 189 | very hard |
| 24 | Berlicum · North Brabant | 10.4 | 186 | very hard |
| 25 | Liessel · North Brabant | 10.4 | 186 | very hard |
25 cities with the softest water
| # | °dH | mg/L | ||
|---|---|---|---|---|
| 1 | Vaassen · Gelderland | 3 | 54 | soft |
| 2 | Wapenveld · Gelderland | 3.1 | 55 | soft |
| 3 | Heerde · Gelderland | 3.1 | 55 | soft |
| 4 | Epe · Gelderland | 3.2 | 58 | soft |
| 5 | Emst · Gelderland | 3.3 | 59 | soft |
| 6 | Kerkrade · Limburg | 3.5 | 63 | moderately hard |
| 7 | Oostendorp · Gelderland | 3.8 | 68 | moderately hard |
| 8 | Elburg · Gelderland | 3.8 | 68 | moderately hard |
| 9 | t Harde · Gelderland | 4 | 71 | moderately hard |
| 10 | Nunspeet · Gelderland | 4 | 71 | moderately hard |
| 11 | Rozendaal · Gelderland | 4.2 | 75 | moderately hard |
| 12 | Rheden · Gelderland | 4.2 | 75 | moderately hard |
| 13 | Zutphen · Gelderland | 4.3 | 76 | moderately hard |
| 14 | Doornspijk · Gelderland | 4.3 | 77 | moderately hard |
| 15 | Warnsveld · Gelderland | 4.3 | 78 | moderately hard |
| 16 | Ooyerhoek · Gelderland | 4.3 | 78 | moderately hard |
| 17 | Velp · Gelderland | 4.4 | 79 | moderately hard |
| 18 | Zeewolde · Flevoland | 4.5 | 80 | moderately hard |
| 19 | Almere Stad · Flevoland | 4.6 | 83 | moderately hard |
| 20 | Wageningen · Gelderland | 4.9 | 88 | moderately hard |
| 21 | Almere Duin · Flevoland | 5 | 90 | moderately hard |
| 22 | Lelystad · Flevoland | 5.2 | 93 | moderately hard |
| 23 | Hattemerbroek · Gelderland | 5.2 | 94 | moderately hard |
| 24 | Loenen · Gelderland | 5.3 | 95 | moderately hard |
| 25 | Opheusden · Gelderland | 5.4 | 96 | moderately hard |