Is San José Tap Water Safe To Drink?
Yes! The tap water is safe to drink.
Tap water in San José, Costa Rica, is generally safe to drink. It is supplied through regulated systems, mainly operated by the Costa Rican Water and Sewerage Institute, and is treated to meet national drinking water standards.
Water quality can be affected by old building plumbing, storage tanks, or temporary service disruptions. For the best taste and safety, use cold tap water from a well-maintained property and follow any local boil-water advisories.
Last checked: 2026-08-31
Costa Rica is ranked as number 64 globally with a score of 66.4% in the water quality EPI research conducted by Yale University.
Source of Water in San José, Costa Rica
Tap water in San José is supplied mainly by the Instituto Costarricense de Acueductos y Alcantarillados (AyA). The water comes from protected mountain watersheds, including the Orosi watershed, as well as springs and groundwater wells in the Central Valley.
AyA collects and treats this water at regional treatment plants before distributing it through the metropolitan water network. The final source can vary by neighborhood and by operating conditions, but all sources are managed under Costa Rica’s national drinking-water standards.
San José Drinking Fountains
Public drinking fountains in San José generally use treated municipal water that meets Costa Rica’s drinking water standards. They are usually safe when connected to the public supply, clean, well maintained, and not displaying a warning.
Avoid fountains that appear dirty, damaged, stagnant, or poorly maintained, since contamination can occur at the fixture even when the water supply is safe. When in doubt, use bottled water or drink from a clean, regularly maintained fountain.
Drinking Water Map
Here is a map showing all the locations of drinking water spots in San José. 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.