Email Marketing Statistics & Metrics You Need to Know in 2025

Email marketing is one of the best digital marketing strategies that involves sending targeted emails to engage, inform, and convert audiences into customers. According to recent email marketing statistics, it boasts an average ROI of 36:1, making it one of the most cost-effective marketing channels for businesses of all sizes.

In this blog, we will examine some email marketing statistics and the main metrics that you should consider when setting up an email marketing campaign.

General Email Marketing Statistics For You

• With over 4 billion people currently using email daily, email remains one of the most widely used digital communication channels worldwide. By 2025, this number is expected to rise to 4.6 billion, and by 2026, it will approach 4.7 billion.

• A significant 81% of companies use email as part of their marketing efforts. It helps them to engage audiences, promote products, and nurture customer relationships. 

• With an average open rate of 36.5%, email marketing continues to capture audience attention. Open rate metrics show the effectiveness of campaigns in engaging recipients. 

• Email marketing revenue is expected to reach $17.9 billion globally by 2027. This figure emphasizes email marketing as an important strategy for businesses looking to generate significant returns on their digital marketing investments.

• As far as the average click-through rates, for all industries, it’s 2.03%. 

• Email marketing has 40–45% open rates higher than social media. 

• Emails with personalized subject lines are 50% more likely to be opened.

• Personalized emails deliver 6x higher transaction rates.

• Marketers have noted a 760% increase in revenue from segmented campaigns.

• Segmented and personalized emails generate 58% of revenue.

• Customers are more likely to purchase from a brand that provides personalized service 80% of the time

Which Email Marketing Metrics Should You Track for Success?

In 2025, effective email marketing relies heavily on understanding and optimizing key performance metrics. 

Look at the metrics that specify successful email campaigns:

1. Click-Through Rates (CTR) in Email Campaign

Click-through rates (CTR) indicate how well an email drives engagement beyond just opening. Average CTRs range from 2-5% across industries, with variations based on content relevance and audience interest.

Personalization has a substantial impact on CTR. Emails with personalized subject lines, targeted recommendations, and dynamic content see significantly higher click-throughs. Studies show that personalization can improve CTR by as much as 14%, as it encourages engagement by making content more relevant and valuable to the reader.

2. Unsubscribe and Bounce Rates

A healthy unsubscribe rate hovers around 0.1-0.3%. Higher rates may indicate issues with email frequency, relevancy, or content quality. Keeping the unsubscribe rate low is essential for maintaining list health and engagement.

Bounce rates, which measure undeliverable emails, typically fall between 0.5-2%, depending on list quality. High bounce rates suggest issues with outdated or low-quality email lists.

You have to clean your email list regularly. You can remove inactive or unengaged users for low bounce and unsubscribe rates.

3. Open Rates In Email Marketing Campaigns

Open rates vary across industries, reflecting differences in engagement and audience behavior. In 2024, open rates showed slight increases due to improvements in personalization and AI-driven targeting, helping brands connect more meaningfully with recipients. 

• Industries such as retail and e-commerce often see open rates between 15-25%. 
• Nonprofit and educational sectors typically enjoy higher rates, averaging around 30-40%.

4. Conversion Rate in Emails

Conversion rate is the most direct measure of an email’s impact on business objectives, whether it’s driving sales, generating leads, or encouraging sign-ups. Conversion rate tracking provides insight into how effectively an email motivates recipients to complete desired actions.

E-commerce email campaigns generally see average conversion rates of around 2-3%, while B2B SaaS email marketing campaigns may convert closer to 1%, reflecting longer decision cycles.

5. Personalization of email campaigns

Personalizing email campaigns is a powerful strategy to enhance audience engagement and drive conversions. By tailoring emails to individual preferences, businesses can make customers feel valued and understood. These personalization strategies can lead to higher open rates, increased click-through rates, and improved overall campaign performance.

6. Make Your Emails Mobile Friendly

In the mobile-first world, ensuring your email campaigns are mobile-friendly is essential. Over 50% of emails are opened on smartphones, and your message must be easy to read or navigate or potential leads may simply swipe it away. You can optimize it for mobile by using proper text, responsive design, and clear CTAs that are easy to tap. This will ensure your content looks good on any device, keeping readers engaged and driving better results.

Optimize Your Outreach with a Professional Email Marketing Agency

A professional email marketing agency is the best idea if you are looking to improve your email marketing campaigns. By automating all of your email campaigns, you do not have to take any risks or waste any time. You can successfully complete all tasks with the support of an email marketing agency.

growth.cx provides email marketing services with all the steps taken with the latest technology. The expert agency provides a full range of marketing services and has been working in this area for over ten years. As a conversion-optimized email marketing service, they are able to engage new customers, retain existing users, and generate long-term revenue for your company. 

The agency provides email marketing services,

• Email automation setup (drip series)
• Done for you cold email outreach campaigns
• Newsletter

Their process emphasizes segmentation, personalizing emails to fit different audience segments, and ongoing testing to optimize engagement rates. 

Conclusion

To conclude the blog, all the email marketing stats are helpful, but remember that email marketing is still one of the best ways to attract quality leads and grow your business. It’s a strategy that’s only getting better with time, so it’s important to have the right plan of email marketing for your business.

If you’re feeling stressed by all the details, you don’t have to do it alone. Working with an expert agency like growth.cx can make things easier for you. The team handles everything from start to finish in their process. It helps you create campaigns that not only engage new customers but also drive long-term revenue. 

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