Water hardness by postcode in Spain
Enter your postcode: we match it to the nearest city with published hardness data and show its value, unit and source.
How the search works
Every postcode is matched to the nearest of the 4988 cities in Spain for which a water supplier or regulator publishes hardness. Supply areas do not follow postcode boundaries, so the result is the figure of the nearest published supply. If the match is more than 15 km away we say so, and the annual water quality report of your own supplier is the better reference. Each city page names the source document and its date and, where the supplier publishes them, the values of each supply zone.
Regions
- Asturias49 · 11.5 °fH
- Cáceres59 · 5.9 °fH
- Cádiz43 · 21.4 °fH
- Cantabria50 · 13.1 °fH
- Castellón/Castelló134 · 33.6 °fH
- Ciudad Real84 · 28.1 °fH
- Córdoba75 · 12.5 °fH
- Coruña (A)85 · 2.1 °fH
- Cuenca227 · 38.1 °fH
- Girona212 · 25.9 °fH
- Granada171 · 23.3 °fH
- Guadalajara35 · 25.6 °fH
- Guipúzcoa86 · 15.3 °fH
- Huelva48 · 17.3 °fH
- Huesca163 · 16.3 °fH
- Jaén96 · 24.6 °fH
- León114 · 7 °fH
- Lleida214 · 16 °fH
- Lugo66 · 2.8 °fH
- Madrid114 · 3.8 °fH
- Málaga103 · 26 °fH
- Murcia45 · 24.9 °fH
- Navarra136 · 22.6 °fH
- Ourense60 · 1.9 °fH
- Palencia147 · 15.2 °fH
- Palmas (Las)30 · 7.1 °fH
- Pontevedra46 · 1.8 °fH
- Rioja (La)43 · 12.1 °fH
- Salamanca309 · 6.8 °fH
- Santa Cruz de Tenerife48 · 10 °fH
- Segovia152 · 15.6 °fH
- Sevilla103 · 11.8 °fH
- Soria151 · 26.8 °fH
- Tarragona181 · 35.4 °fH
- Teruel208 · 30.4 °fH
- Toledo146 · 7.7 °fH
- Valencia/València250 · 36 °fH
- Valladolid137 · 22.4 °fH
- Vizcaya93 · 10.1 °fH
- Zamora203 · 18.2 °fH
- Zaragoza269 · 27 °fH
Largest cities in Spain
| °fH | mg/L | ||
|---|---|---|---|
| Madrid | 3.3 | 33 | soft |
| Barcelona | 26.8 | 268 | very hard |
| Valencia | 50 | 500 | very hard |
| Zaragoza | 18.8 | 188 | very hard |
| Seville | 12.3 | 123 | hard |
| Málaga | 11.1 | 111 | moderately hard |
| Murcia | 24.9 | 249 | very hard |
| Las Palmas de Gran Canaria | 8 | 80 | moderately hard |
| Bilbao | 8.6 | 86 | moderately hard |
| Cordoba | 9.9 | 99 | moderately hard |
| Valladolid | 25.4 | 255 | very hard |
| Vigo | 1.8 | 18 | soft |
| Gijón/Xixón | 11.1 | 111 | moderately hard |
| A Coruña | 3.3 | 33 | soft |
| Granada | 8.8 | 88 | moderately hard |
| Oviedo | 18.1 | 182 | very hard |
| Cartagena | 17.9 | 179 | hard |
| Santa Cruz de Tenerife | 14 | 140 | hard |
| Móstoles | 7.6 | 76 | moderately hard |
| Alcalá de Henares | 6.1 | 61 | moderately hard |
| Pamplona | 12.8 | 128 | hard |
| Fuenlabrada | 4.4 | 44 | soft |
| Leganés | 3 | 30 | soft |
| Donostia / San Sebastián | 5.6 | 56 | soft |
| Getafe | 4.6 | 46 | soft |
| Castellón de la Plana/Castelló de la Plana | 46.6 | 466 | very hard |
| Alcorcón | 4.5 | 45 | soft |
| San Cristóbal de La Laguna | 19.9 | 199 | very hard |
| Logroño | 12.1 | 121 | hard |
| Tarragona | 31.3 | 313 | very hard |
| Marbella | 22.6 | 226 | very hard |
| Lleida | 16.7 | 167 | hard |
| Dos Hermanas | 11 | 110 | moderately hard |
| Parla | 4.1 | 41 | soft |
| Cádiz | 20.4 | 204 | very hard |
| Algeciras | 5.6 | 56 | soft |
| Jaén | 33.3 | 333 | very hard |
| Ourense | 2.9 | 29 | soft |
| Reus | 31.1 | 312 | very hard |
| Telde | 7.1 | 71 | moderately hard |