This article covers more than 20 Gmail statistics spanning user base, market share, spam filtering, mobile usage, storage history, and business adoption. We also include general email statistics and sales email data at the end.

How Many People Use Gmail and What Is Its Market Share?

1. There are more than 1.5 billion Gmail users. Google confirmed in 2018 that Gmail has more than 1.5 billion active users worldwide—a significant increase from the 1.0 billion active users reported in 2016.

2. About 27% of all email opens are on Gmail. According to a Litmus study, about 27% of all email opens occur on Gmail. The only email client that ranks higher is Apple iPhone at 29%. Apple iPad is third at 10%, and Outlook accounts for only about 7% of opens. For a detailed comparison, see our analysis of Outlook vs. Gmail.

3. Among Americans aged 18–29, 61% use Gmail. Among Americans aged 30–44, 54% use Gmail. That percentage decreases to 36% among Americans 45 to 64. Yahoo Mail usage trends in the opposite direction, with 31% of people aged 65 and older using Yahoo compared to only 19% of the youngest age group.

4. More than 60% of mid-sized U.S. companies use Gmail. Among startups, 92% choose Gmail as their business email provider. Google Workspace pricing ranges from approximately $5 to $25 per user depending on the service tier.

5. The average Gmail user has 1.7 accounts. Most people maintain more than one Gmail account—typically one for business and one for personal use.

6. Gmail offers support for 105 languages. Gmail currently supports 105 languages, and Google continues to add more.

How Effective Is Gmail’s Spam Filter?

7. Gmail blocks more than 10 million spam and malicious emails every minute. Google’s anti-abuse machine learning software automatically blocks more than 10 million phishing, scam, and spam emails every minute—roughly 14.4 billion per day.

8. Only 0.1% of messages that reach the inbox are spam. According to Gmail, only 1 in every 1,000 messages received in users’ inboxes is categorized as spam.

9. Only 0.05% of automatically spam-flagged messages are not actually spam. Less than 1 in every 2,000 wanted messages lands in the spam folder by mistake. It is still worth periodically checking your spam folder to make sure nothing important was flagged incorrectly. For more detail, see our guide on why emails go to spam.

What Do Gmail Usage and Inbox Statistics Reveal?

10. About 75% of Gmail users access their email on a mobile device. Roughly three-quarters of all Gmail users regularly access their account from a mobile device, making mobile the dominant platform for email consumption.

11. The average Gmail account has more than 5,700 emails. According to ZDNet, the average account contains more than 5,700 emails across all folders.

12. The average Gmail account is worth $3,588.85. According to Backupify, the average Gmail account is valued at approximately $3,588.85 based on the value of assets, conversations, and opportunities contained within it. That figure may be even higher today.

13. More than two-thirds of incoming messages are promotional. About 68% of incoming messages are categorized by Gmail as promotions, 22% are classified as updates, and roughly 10% are substantive messages.

14. The read rate for promotional emails is 19.2%. The same study found that update emails had a 28% read rate, social emails had a 22.4% read rate, and forum messages had a 21.1% read rate.

15. More than 20 billion emails have been migrated to Gmail. Gmail’s migration feature has processed more than 20 billion emails—more than 28 million per day. Most migrations complete in less than a day.

What Are the Key Milestones in Gmail’s History?

16. Gmail launched April 1, 2004. Google went live with its email platform on April 1, 2004, offering 1 GB of free storage at launch.

17. Gmail doubled its free storage to 2 GB on its first anniversary. On Gmail’s 1-year anniversary, Google gave users 2 GB of free storage, doubling the original 1 GB allocation.

18. Google consolidated storage to 15 GB in 2013. After gradually increasing limits (reaching 10 GB at one point), Google consolidated to 15 GB of free storage in May 2013, shared across Gmail, Drive, and other Google services.

19. Gmail was named the best webmail service in 2006. Forbes awarded Gmail “best webmail service” just two years after launch. Every year, new Gmail features and add-ons continue to improve the platform.

20. The longest Gmail outage was 2.5 hours. In February 2009, Gmail experienced its longest outage, lasting 2.5 hours and affecting more than 100 million accounts. Given 1.5 billion active users, Google’s uptime record is remarkable.

What Are the Most Important General Email Statistics?

21. More than 306 billion emails are sent daily. In 2018, more than 281 billion emails were sent daily. That figure has grown to over 306 billion, with continued growth of roughly 5% per year, largely driven by increasing digital device accessibility in developing countries.

22. The average worker receives 121 emails per day. The average worker receives at least 121 emails per day, and that figure has likely grown since the most recent measurement.

23. The average email click-through rate is 3.1%. Email CTR has been declining over time due to growing distrust of marketing and sales emails, with the current average at 3.1%.

24. Mobile devices account for 55.6% of all email opens. Mobile remains the dominant device for email, responsible for 55.6% of all email opens across all platforms.

What Email Statistics Matter Most for Sales Professionals?

For a more comprehensive list, see our full collection of email statistics for sales professionals.

25. Only 9% of sales emails are opened. Open rates for sales-related emails average just 9%. Improving your sales email subject lines can help increase this rate.

26. 69% of spam flags are based purely on the subject line. While only 21% of recipients flag emails as spam, 69% of all spam flags are prompted entirely by the subject line content.

27. 24% of email opens happen within the first hour. After the first hour, the majority of remaining opens still occur within 24 hours of delivery.

28. The average email user deletes 48% of emails received. Each day, the average person deletes nearly half of all emails they receive.

29. Salespeople spend more than 13 hours per week emailing. The average salesperson spends about 13 hours every week writing, reading, and organizing emails.

30. Emails with questions are 50% more likely to get a response. Including between 1 and 3 questions in an email significantly increases the likelihood of receiving a reply.

Understanding your own Gmail usage is a gateway to higher productivity. With the right data on how you send, receive, and respond to email, you can identify inefficiencies and save significant time every week.

Frequently Asked Questions About Gmail Statistics