The Ultimate List of Email Marketing Stats for 2023

Webinars, video campaigns, and social media posts are relatively new channels for marketers to reach their customers. Still, I don’t think that more contemporary methods should distract you from one of the oldest, most effective strategies  — email marketing. In fact, email ROI is an impressive $36 for every $1 spent

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If you’re still hesitant, keep reading — we’ve cultivated a list of email marketing statistics for HubSpot to demonstrate just how powerful email can be. Here, you’ll find: 

General Email Marketing Statistics and Best Practices

email marketing stats: graph displaying email marketing revenue through 2027

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  • There are 4 billion daily email users. This number is expected to climb to 4.6 billion by 2025. (Statista, 2021)
  • More than 347 billion emails are sent and received each day. (Statista, 2022)
  • 64% of small businesses use email marketing to reach customers. (Campaign Monitor, 2021)
  • 38% of brands are increasing their email budget, and just 10% are making cuts. (HubSpot Blog Research, 2023)
  • The most effective strategies for email marketing campaigns are subscriber segmentation (78%), message personalization (72%), and email automation campaigns (71%). (HubSpot Blog Research, 2021)
  • Emails with multimedia elements or formats with images and/or videos have the highest performance. (HubSpot Blog Research, 2023)
  • The best time to send a marketing email is 9:00 AM – 12 PM EST, then 12:01 PM – 3 PM EST. The worst is 1 AM – 3 AM EST.  (HubSpot Blog Research, 2023)

graph displaying the best time to send a marketing email

  • 22% of marketers (or the companies they work for) send marketing emails 2-3 per day, and 21% send daily emails. 12% send a weekly email. (HubSpot Blog Research, 2022)

pie chart displaying how often marketers send marketing emails

  • Most marketers determine the frequency of their email send based on past email engagement data. (HubSpot Blog Research, 2023)
  • 87% of brands say that email marketing is very critical to business success. (Litmus, 2023)
  • 77% of marketers have seen an increase in email engagement over the last 12 months. (Not Another State of Marketing, 2021)
  • Tuesdays are the best days to send an email for the highest performance, Sundays are the worst. (HubSpot Blog Research, 2023)

    bar graph displaying the best days to send marketing emails

  • Most marketers say Apple’s Privacy Protection feature has not impacted the accuracy of the email marketing metrics they track. Those that have reported changes say it’s had the most impact on reporting accuracy for overall email traffic. (HubSpot Blog Research, 2023)
  • Personalization using dynamic content is the top personalization tactic used by email marketing teams. It’s also the best way to improve email performance. (Litmus, 2023)
  • The most effective email subject lines engage curiosity, include promotional offers, and are personalized to each recipient’s interests. (HubSpot Blog Research, 2021)
  • QA, A/B, and spam testing your emails leads to higher ROI. Enjoy up to a 28% higher return when you put testing to work for your email program. (Litmus, 2022)

  • 85% of eCommerce marketers say their primary objective with email is increasing brand awareness. (HubSpot Blog, 2023)

Email Marketing Metric Statistics

  • The top two metrics marketers track for the emails they send are clickthrough rate (34%) and open rate (31%). (HubSpot Blog Research, 2023)

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AI Email Marketing Statistics

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  • 38% of marketers who use AI use it to write emails. (HubSpot’s State of Generative AI, 2023)
  • 21% of Sales Professionals who use AI in their role say that it’s most useful for writing messages to prospects. 32% say it’s most useful for re-purposing messages by adapting them to a different audience. (HubSpot’s State of Generative AI, 2023)

Pro tip: Want to give AI a test drive for your marketing emails? Check out Campaign Assistant, HubSpot’s generative AI tool that creates customized emails in seconds.

B2B Email Marketing Statistics

Mobile Marketing Statistics

  • 55% of emails are opened on mobile devices. (eMarketer, 2023)
  • Nearly 55% of global website traffic is generated from mobile devices, excluding tablets. (Statista, 2022)
  • 46% of smartphone users prefer to receive communications from businesses via email. (Statista, 2021)
  • Apple iPhone’s native email app has the highest market share, followed by Gmail. (Litmus Labs, 2022)
  • 35% of email marketers say they use a mobile-first or mobile responsive design process. (Litmus, 2023)
  • Launching a mobile-responsive email design can increase unique mobile clicks by 15%. (MailChimp, 2021)
  • 56% of marketers leverage mobile-friendly emails in their email marketing strategy. (HubSpot Blog Research, 2021)

B2C Email Marketing Statistics

Email Marketing Demographics

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  • 37% of survey respondents in the U.S. have two email addresses and 28% have over four.  (Statista, 2022)
  • Consumers spend an average of 9 seconds reading brand emails. (Statista, 2022)
  • A majority of Americans say the emails they receive are not useful (59%). (Edisonmail, 2023)
  • Too many emails is the number one trigger for consumers to unsubscribe. (Gartner, 2022)
  • Consumers prefer to receive emails from their favorite brands just a few times per month. (Gartner, 2022)
  • When it comes to data security, 32% of consumers are distrustful when it comes to giving companies their email. (HubSpot, 2023)
  • Email is the leading way consumers in the U.S. discover coupons from brands.  (Statista, 2021)
  • Consumers say they’re most likely to open emails about available promotions/discounts.  (Digital Commerce 360, 2022)
  • Consumers also like emails that mention a birthday or anniversary (54%) and share local/regional events and offers (53%). (Gartner, 2022)

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  • 59% of Millennials primarily use their smartphone to check email, while 67% of Generation Z scans their inbox on mobile. (Bluecore, 2021)
  • Gen Z, Millennials, and Gen X most often use email for online shopping. Boomers use email for correspondence with friends and family. (Edisonmail, 2023)
  • The most significant steps marketers take to champion accessibility when creating their emails is writing short, descriptive subject lines, making links and buttons easy to see, and keeping paragraphs short and simple. (Pathwire, 2021)

Apply Your Email Knowledge

Many of the data points will help you make the case for investing more time and money into your email marketing strategy. While you can refer back to this post at any time, you can also start applying them to your next campaign.

Editor’s Note: This blog post was originally published in March 2019, but was updated for comprehensiveness and freshness.



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