Is Castellon Tap Water Safe To Drink?
Yes! The tap water is safe to drink.
Yes, tap water in Castellón, Valencia, Spain, is safe to drink. It is treated and regulated under Spain’s drinking-water standards, which follow European Union requirements.
The water may taste hard or slightly chlorinated because of its mineral content and treatment process. These characteristics affect taste, not safety.
Last checked: 2026-08-31
Spain is ranked as number 20 globally with a score of 93.8% in the water quality EPI research conducted by Yale University.
Source of Water in Castellon, Spain
Tap water in Castellón de la Plana comes mainly from groundwater wells tapping the Plana de Castellón aquifer. This aquifer is replenished by rainfall and river infiltration across the coastal plain.
The supply can also include surface water from the Mijares River system, regulated by reservoirs such as Sitjar. The water is treated, disinfected, and tested before entering the municipal distribution network.
Castellon Drinking Fountains
Public drinking fountains in Castellón, Valencia, are generally safe to use when they are clearly marked as drinking water and connected to the municipal supply. Spanish and European water standards require regular testing for microbiological and chemical safety.
Do not drink from decorative fountains or taps marked “non-potable,” and avoid any fountain showing a closure or maintenance notice. Let the water run briefly and avoid placing your mouth directly on the spout.
Drinking Water Map
Here is a map showing all the locations of drinking water spots in Castellon. You can click on each water drop to open the spot directly in Google Maps for directions. For easy access on the go, download our iOS app to find water fountains nearby.
Nearby Places
About the Author
Hi, I'm Emily Hartman, a researcher and water quality specialist with a background in public health.
I've spent the last few years studying how everyday water systems impact our health, and I'm passionate about making that information clear and useful for everyone.
Safe, clean tap water isn't just my job, it's something I truly care about.