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Total Facebook population

• 474,068,480 (Source: www.checkfacebook.com)

New Zealand on Facebook

• 1,650,040 total
• 38% of population (4,369,398 estimated)
• 50% aged 18-34

 
Australia on Facebook

• 9,012,360 total
• 40% of population (22,384,560 estimated)
• 54% aged 18-34

 
United States on Facebook

• 125,881,220 total
• 41% of population (309,721,911 estimated)
• 50% aged 18-34

 
Source: www.facebook.com
 
More statistics
 
For more information, download the more comprehensive spreadsheet (xlsx format) that we have prepared.  It contains age group breakdowns for New Zealand, Australia and USA by gender.