Can You Drink Tap Water in Vatican City?

Tap water in Vatican City is safe to drink. As the world's smallest independent state, entirely enclosed within Rome, the Vatican is connected to Rome's municipal water supply managed by ACEA (Azienda Comunale Energia e Ambiente), which treats and distributes water to EU drinking water standards. The water is of excellent quality and completely safe to drink directly from the tap.

Rome's water supply has a distinguished history — the city was served by ancient Roman aqueducts, and modern infrastructure continues to deliver high-quality water from springs in the Castelli Romani hills and the Apennine mountains. The water is naturally low in hardness, clean-tasting, and requires minimal treatment. Rome's famous drinking fountains — the nasoni — are fed by the same supply and are completely safe to drink from, and the Vatican has similar public fountains throughout its grounds.

Within the Vatican's walls, the water distribution network is maintained separately from the surrounding Roman infrastructure once it enters Vatican territory, but the source and treatment are identical. The water quality at the tap inside the Vatican — in its museums, administrative buildings, and residences — is the same as the tap water in the immediate surrounding Roman neighbourhoods of Prati and Borgo.

For visitors to the Vatican Museums, St. Peter's Basilica, and St. Peter's Square, drinking fountains are available and the water is perfectly safe. Tap water in restaurants and cafés in and immediately around the Vatican is safe to drink. There is no need to purchase bottled water in Vatican City or the surrounding neighbourhood on safety grounds, though it is widely available if preferred.