Guam
The practical basics before you go: plugs, emergency numbers, money, tipping and the time.
In brief
About 169 thousand people live in Guam, on 544 km². The capital is Hagåtña.
- Capital
- Hagåtña
- Population
- 168,999
- Area
- 544 km²
- Official languages
- English and Chamorro
No land borders
Facts change, so check the important things before you travel.
Population: World Bank, 2025 (CC BY 4.0). Capital, area and languages: Wikidata. Facts fetched October 30, 2026.
Before you go
Which plugs are used in Guam?
Sockets take plug type A/B, at 110 V and 60 Hz.
That is lower than Europe's 230 V: phone and laptop chargers handle it, but check hair dryers and the like.
What is the emergency number in Guam?
Call 911 for police, ambulance and fire.
Do you tip in Guam?
15–20 %, and expected.
Which side of the road do they drive on in Guam?
Traffic drives on the right.
What currency is used in Guam?
Prices are in US Dollar (USD).
What language do they speak in Guam?
Official languages: English and Chamorro.
How do I call a number in Guam from abroad?
To call a number there from abroad, start with +1.
Entry rules and travel advice
Visa rules depend on your passport and can change at short notice. Your own government keeps them up to date, so check its advice before you book.
Links checked October 30, 2026.
