Guam
Guåhån
Guam (GU, GUM) is a territory in Micronesia, with Hagåtña as its capital. The currency is the US Dollar (USD, $). The international dialling code is +1 and the trunk prefix is 1; mobile numbers are written like (671) 300-1234. The time zone is Pacific/Guam. Official language: Chamorro.
CurrencyUSD$
Dial code+1e.g. (671) 300-1234
Time zoneGuamUTC+10:00
LanguageChamorro
CapitalHagåtña
Population169.5K549 km²
Overview
- Official name
- Guam
- Native name
- Guåhån · Guam
- ISO 3166-1 alpha-2
- GU
- ISO 3166-1 alpha-3
- GUM
- ISO 3166-1 numeric
- 316
- IOC code
- GUM
- Demonym
- Guamanian
- Capital
- Hagåtña
- Region
- Oceania › Micronesia
- Status
- Dependency or territory
- Groups
- Micronesian Region
- Internet domain
- .gu
- Coordinates
- 13.46666666, 144.78333333
- Area
- 549 km²
- Population
- 169,532
- GDP
- $5.8B ($34.2K per person)
- Literacy
- 99%
- Landlocked
- No
- Land borders
- None
Currency
US Dollar USD
- Symbol
- $
- Minor units
- 2 decimals
- Example
- $1,234.50
Languages
Time zones
| Time zone | Local time | Standard | Daylight saving | Name |
|---|---|---|---|---|
| Pacific/Guam | UTC+10:00 | none | Chamorro Standard Time |
Phone numbers
- Calling code
- +1
- Shared with
- Dial-out prefix
- 011
- Trunk prefix
- 1
- National number length
- 10 digits
- Emergency number
- 911 pattern 911
Number types
| Type | National format | International format | Layout | Digits |
|---|---|---|---|---|
| Fixed line | (671) 300-1234 | +1 671 300 1234 | (XXX) XXX-XXXX | 10 |
| Mobile | (671) 300-1234 | +1 671 300 1234 | (XXX) XXX-XXXX | 10 |
| Toll free | (800) 212-3456 | +1 800 212 3456 | (XXX) XXX-XXXX | 10 |
| Premium rate | (900) 212-3456 | +1 900 212 3456 | (XXX) XXX-XXXX | 10 |
| Personal number | (500) 234-5678 | +1 500 234 5678 | (XXX) XXX-XXXX | 10 |
Address and postal code
Address layout
{Name}
{Organization}
{Street address}
{City} {Postal code}
- Required fields
- Street address, City, Postal code
- Uppercase fields
- Street address, City, Name, Organization
Postal code
- Pattern
(969(?:[12]\d|3[12]))(?:[ \-](\d{4}))?- Examples
- 96910 · 96931
- Label
- zip
- Post office lookup
- http://zip4.usps.com/zip4/welcome.jsp
Calendar, units and conventions
- First day of the week
- Sunday
- Weekend
- Saturday to Sunday
- First week of the year
- Contains at least 1 day of the new year
- Hour cycle
- 12-hour (1–12), also hb, H, hB
- Calendars
- gregorian
- Measurement system
- Metric
- Temperature
- Celsius
- Paper size
- A4
- Locales
Number and date formats
As written by the English (Guam) locale (en-GU), amounts in USD.
- Number
- 1,234,567.891
- Percent
- 45.7%
- Currency (USD)
- $1,234,567.89
- Accounting
- ($1,234,567.89)
- Currency, name
- 1,234,567.89 US dollars
- Compact short
- 1.2M
- Compact long
- 1.2 million
- Scientific
- 1.235E6
- Speed
- 88 kilometers per hour
- Temperature
- 21.5°C
- Date, full
- Friday, March 27, 2026
- Date, long
- March 27, 2026
- Date, medium
- Mar 27, 2026
- Date, short
- 3/27/26
- Time, medium
- 3:04:05 PM
- Time, short
- 3:04 PM
- Date and time
- Mar 27, 2026, 3:04 PM
- Month and year
- March 2026
- Weekday
- Friday
- Relative time
- yesterday · in 3 days · 2 hours ago
- List: and
- A, B, and C
- List: or
- A, B, or C