Safe to drink. Based on the national picture for Costa Rica and local conditions.
Can you…
Can you drink the tap water in San José?
Last reviewed 2026 · Costa Rica
San José scores 71/100 for tap-water safety — safe to drink. So if you’re asking whether the tap water is safe in San José, the short answer is “safe to drink.” Scores above 70 mean tap water is generally safe to drink. 40–69 means treat it with caution — filtering or bottled water is wise. Below 40 means it’s best avoided straight from the tap.
Ice, brushing your teeth & cooking: what’s safe in San José?
- Drinkable?
- Yes — tap water is safe to drink straight from the faucet.
- Brush teeth?
- Yes — brushing your teeth with tap water is perfectly fine.
- Ice?
- Yes — ice made from tap water is safe.
- Cooking?
- Yes — cooking and rinsing produce with tap water is safe.
Should you boil the tap water in San José?
You don't need to boil the tap water in San José — it's treated to a high standard and safe to drink as-is. Boiling only matters if you're on a private well or during a local boil-water advisory. More on what boiling does and doesn’t remove.
Do you need bottled water or a filter in San José?
Bottled water is a preference, not a necessity, in San José — the tap water is safe and far cheaper. A refillable bottle is the greener, cheaper choice.
A filter isn't needed for safety in San José; some people use a simple carbon filter purely to improve taste or reduce chlorine smell.
How San José compares to the rest of Costa Rica
There’s no separate official water-quality feed for San José, so its rating tracks the national picture for Costa Rica, which scores 71/100. Conditions in a specific neighbourhood, hotel, or older building can still differ from the city as a whole.
Common questions about tap water in San José
Can you drink tap water in San José?+
San José scores 71/100 on our water-safety index — safe to drink. Yes — tap water is safe to drink straight from the faucet.
Is it safe to brush your teeth with tap water in San José?+
Yes — brushing your teeth with tap water is perfectly fine.
Is ice safe to use in drinks in San José?+
Yes — ice made from tap water is safe.
Is tap water in San José safe for cooking?+
Yes — cooking and rinsing produce with tap water is safe.
Data & sources
City-level tap-water safety isn’t published as a single official global dataset, so the San José score is derived from Costa Rica’s national water-safety assessment together with CDC traveler guidance. For the full country picture and its official sources, see tap water in Costa Rica.
Read the full methodology — how the 0–100 score is built and what it does (and doesn’t) mean.