Domestic Water Supply

Understand the water supply system in Costa Rica and how to get connected...

Water services in Costa Rica are provided exclusively by the Costa Rican Water and Sewer Institute (Instituto Costarricense de Acueductos y Alcantarilladas - AyA) (in Spanish).


The Rural Works Department of AyA is also responsible for providing support to water and sanitation associations in rural communities. The quality of tap water is variable throughout Costa Rica; it is generally safe in major towns and cities, but should be boiled before consumption in rural areas.

Getting Connected

To set up a water connection for the first time, the following information should be taken to a local AyA office:

  • Proof of identity (and photocopy)
  • Title of ownership of properties (notarised within 30 days)
  • Two copies of the property plans
  • One copy of the construction plans
  • Address for installation
  • Telephone number

There is no charge for services to be transferred to a new user.


To temporarily or permanently disconnect the water supply, the owner needs to fill out the appropriate paperwork in the AyA local office and pay a small fee.


As with electricity bills, water bills are delivered to the home monthly. Bills can be paid at a variety of locations, such as banks and stores. If a water bill is not received the local AyA office should be informed.

  • For a full list of payment locations by region: Click here

Note: Failure to pay water bills will result in services being suspended within three days of the payment due date. A fee is charged for reconnection of services.