How Many Email Users Are There?

Worldwide Email Statistics

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People are sending and receiving emails all day every day, all around the world. With the popularity of email and the fact that billions of emails are exchanged daily, it's no surprise how many email users there are.

According to a 2018 Radicati Group study, there will be more than 3.8 billion email users before the start of 2019, over 100 million more than the previous year. In other words, over half of the entire planet uses email right now.

To visualize a comparison growth rate, the same group reported about 1.9 billion worldwide users in May of 2009 and projects that that number will reach 4.2 billion by 2022.

Note: Since the Radicati Group's estimates have been a bit high in the past, it's possible that the real number will fall short of their projections.

How Many Email Accounts Are There?

Since some users have multiple email accounts (1.75 on average), there are more email accounts than there are users.

The mailboxes commanded by these users were calculated to number around 4.4 billion in 2015, which is up from 2.9 billion in 2010 and ~3.3 billion in 2012.

How Many Gmail Users Are There?

Google had over 1 billion monthly active users in early 2016. In May of 2015, they had 900 million users worldwide, which was even higher than their 2012 report of around 426 million monthly active users.

Look at this chart for a visual trend of Gmail users increasing over the years.

How Many Outlook.com Users Are There?

In early 2018, Outlook.com had a reported 400 million active users. However, that number hasn't changed as drastically as Gmail's statistics.

How Many Corporate Users Are There?

The Radicati Group counts the 3.8 billion email users in 2018 as both consumer and corporate users. However, because it isn't clear how the email accounts are differentiated between consumer and business users, it's hard to measure the accuracy of the statistic.

In 2010, the Radicati Group reported 730 million business email inboxes worldwide, which at the time, was 25% of all email accounts.

How Many Emails Are Sent Each Day?

Email users send hundreds of billions of messages every single day.

See ​​how many emails people send for updated statistics on the average number of emails that are sent and received per day.