TapWaterGuide
Worldwide water safety reference
Generally Safe Costa Rica · Last reviewed:

Is Tap Water Safe to Drink in San José?

Yes, tap water in San José is generally safe to drink. AyA supplies the city from protected mountain springs, providing some of the best-treated water in Central America.

Hardness
Soft to moderate
Country
Costa Rica
Rating
Generally Safe
Soft
Moderate
Hard
Very Hard

Water Source

AyA (Instituto Costarricense de Acueductos y Alcantarillados) supplies San José from protected mountain springs and aquifers in the Central Valley highlands, treated to Costa Rican drinking water standards.

Contaminants & Concerns

No significant health concerns in the city center. Costa Rica invests heavily in watershed protection, and the mountain spring sources are naturally clean. Distribution infrastructure in the capital is well maintained.

Tips

  • San José tap water is safe to drink — no need to buy bottled water in the city
  • Costa Rica is one of the few Latin American countries where tap water is widely safe
  • When traveling outside San José to rural areas, check locally as water quality can vary

Frequently Asked Questions

Sources & References

The safety rating and guidance on this page draw on the following sources. See our full methodology.