HubSpot’s 2025 State of Newsletters Report [data from 400+ newsletter pros]

Newsletters are no longer the dusty side dish of digital marketing. In 2025, they are the entrée, the dessert, and the thing people brag about in strategy meetings. HubSpot’s 2025 State of Newsletters Report, built from insights shared by 400+ newsletter professionals, confirms what many marketers already suspected: the inbox is not dead, not sleepy, and definitely not waiting politely in the corner. It is busy, competitive, profitable, and a lot smarter than it used to be.

The big headline is not simply that newsletters are growing. It is that newsletters are evolving into a full-blown media product. They now sit at the intersection of audience ownership, personalization, creator-led publishing, AI-assisted production, and direct monetization. In other words, your “weekly email update” has officially grown up, gotten a haircut, and asked for a revenue plan.

This article breaks down the report in plain American English, with a few laughs where the data allows, and places HubSpot’s findings into the wider 2025 newsletter landscape. The result is a practical look at what is changing, why it matters, and what brands, publishers, and creators should do next.

Why HubSpot’s 2025 newsletter report matters

HubSpot’s report arrives at a moment when newsletters are benefiting from several powerful market shifts at once. Social platforms remain useful for discovery, but they are less predictable than ever. At the same time, email continues to perform as one of the most reliable owned channels in marketing. Mailchimp’s benchmark data still shows healthy email engagement across industries, with all-user averages around a 35.63% open rate and 2.62% click rate. That is not exactly the profile of a dying channel.

Meanwhile, Constant Contact found that 44% of small businesses now say email is their most effective marketing channel, up sharply from the year before. That matters because it shows newsletters are not just beloved by media brands and creator-economy operators. They are also becoming central to how everyday businesses communicate, sell, and build loyalty.

HubSpot’s report adds a richer layer to that story. Instead of asking whether newsletters still work, it asks a more useful question: what are the best newsletter operators doing differently in 2025? The answers are surprisingly consistent. They personalize. They distribute beyond the inbox. They mix media formats. They lean into authentic voice. They measure performance like adults. And yes, many of them let AI help, but not drive the car off a cliff.

The biggest takeaways from the report

1. Newsletters are now multi-channel products, not just emails

One of the report’s most interesting findings is that creators are no longer thinking about newsletters as something that lives only in an email tab. HubSpot found LinkedIn was the most-used publishing channel at 52%, followed by Facebook at 50%, with traditional email at 42%. That tells us something important: distribution is widening.

In other words, the modern newsletter is not just “send and pray.” It is “publish, amplify, repost, clip, preview, tease, and funnel readers back to an owned relationship.” That is a smart shift. Newsletters still live in inboxes, but their audience growth increasingly starts elsewhere.

This also lines up with broader market behavior. Beehiiv’s 2025 newsletter research points to the same forces shaping the space: AI is rising, social platforms are unstable, and more journalists and creators are going independent. Put those together and you get a simple truth: newsletter growth now depends on channel strategy as much as writing quality.

2. Personalization is no longer a “nice touch”

If there is one finding in HubSpot’s report that marketers should tape to a wall, it is this: 90% of newsletter creators actively tailor their strategy to their most prominent subscriber demographics. Another 67% believe subscribers will expect much higher levels of personalization by 2030.

That is not small talk. That is a giant neon sign flashing stop blasting the same thing to everybody.

The report also connects personalization to revenue. Newsletter operators who do not personalize appear more likely to sit in the lower-earning group. HubSpot notes that among non-personalizers, 23% reported making $0 per month, while 43% said they earned only $1 to $100 monthly. Ouch. That is less “media empire” and more “coffee money with emotional baggage.”

The lesson is not that every newsletter needs a complex recommendation engine. It is that readers want relevance. They want topics that match their interests, send times that fit their habits, and formats that feel natural for how they consume content. Personalization can start with audience segments, behavioral clues, and thoughtful editorial choices. It does not require a lab coat.

3. Word of mouth is still undefeated

Marketers love shiny growth hacks because shiny growth hacks make for excellent slide decks. But HubSpot found that 42% of respondents ranked direct recommendations from current subscribers as the most effective growth strategy. Translation: people trust people.

That finding matters even more in a crowded space. As newsletter volume rises, discoverability gets harder. Readers are more likely to try a newsletter when it comes with a recommendation from a colleague, creator, friend, or partner brand. This means the best growth loop is often a good product plus a reason to share it.

That also explains why voice matters so much. Readers do not enthusiastically recommend something that feels like it was assembled by three committees and a compliance robot. They recommend things that are useful, distinctive, and worth forwarding with a “you need to read this” note.

4. Opinionated content performs better than bland content

HubSpot found that newsletters built around personal opinions, tips, or hot takes delivered the highest open rates, click rates, and conversion rates. Mixed-media content, such as text combined with imagery or video, also performed especially well.

This is a crucial point for SEO-minded publishers and brands. The winning newsletter in 2025 is not merely informative. It is informed by someone. The strongest newsletters feel like they come from a recognizable mind, not a content blender set to “corporate medium.”

That does not mean every brand needs to become loud or theatrical. It means readers respond to perspective. They want expert commentary, strong interpretation, practical lessons, and content that sounds like it was written by a human with pulse, taste, and a calendar full of opinions.

5. Monetization is real, but the easy money is not

HubSpot’s data shows that one-fourth of respondents saw substantial profit growth in the past year, and 45% expect profits to rise significantly over the next 12 months. At the same time, 55% believe earning newsletter revenue will become substantially harder by 2030.

Both things can be true. Newsletters are profitable, but they are also maturing. Easy wins are fading. Readers are choosier. Competition is thicker. CPM dreams alone are not enough. The report notes that the primary revenue engine for many newsletters is the sale of products, services, or memberships promoted within the newsletter itself.

That is a strong signal for marketers: owned audience matters most when it points to something valuable. A newsletter with no business model is a hobby. A newsletter with a product, community, subscription, consulting offer, event funnel, or sponsorship strategy can become a serious asset.

The broader market supports this view. Reuters reported that beehiiv expects major revenue growth as newsletter businesses scale through ad networks and creator tools. Axios also reported that Substack passed 5 million paid subscriptions and reached a valuation above $1.1 billion in 2025. The newsletter economy is not hypothetical anymore. It is a market.

6. AI is helping, but humans still own the voice

Now to the topic every marketer is contractually obligated to mention in 2025: AI.

HubSpot found that 28% of newsletter pros use AI for brainstorming and planning, while 25% use it for content creation. Another 23% are not using it yet but plan to within a year. Among AI users, 42% say it saves them one to three hours a week. That is meaningful, especially for lean teams publishing multiple editions.

Still, the most interesting insight is not the time savings. It is the role AI is playing. The report suggests creators are using it as a helper, not a replacement. That mirrors the broader email world. Litmus and Validity both emphasize that email teams are increasingly focused on personalization, engagement, ROI, and smart AI use, not blind automation.

The strongest newsletters of 2025 are not “fully AI.” They are AI-assisted and human-shaped. That distinction matters. The audience will tolerate efficiency. It will not tolerate soullessness. Readers can forgive a typo. They do not forgive a newsletter that feels like it was written by a toaster with venture funding.

What brands and creators should do with this information

If HubSpot’s report had a practical slogan, it might be this: build a newsletter like a media product, not a checkbox.

That means starting with positioning. What unique value does the newsletter deliver? Who is it for? Why should a reader open it this week instead of ignoring it in favor of fifteen other smart people yelling for attention?

It also means improving operations. Use social and platform distribution to attract new audiences, but keep the long-term relationship anchored in owned data. Segment your audience. Learn which topics actually move clicks. Watch what people forward. Test format, cadence, and voice. Give readers a reason to recommend you. Use AI where it saves time, especially in planning, summarization, and experimentation, but keep the editorial point of view human and sharp.

Most of all, stop thinking of newsletters as the sidecar to a marketing strategy. In 2025, a good newsletter is the strategy, or at least one of the strongest parts of it. It can build trust, drive revenue, create feedback loops, nurture community, and make every other channel work harder.

What the report really says about the future of newsletters

The future of newsletters is not just more email. It is more identity, more intention, and more integration. We are moving toward newsletters that know their audiences better, sound more human, mix more formats, and plug into broader revenue systems. The winners will not simply send often. They will send wisely.

HubSpot’s 2025 report does not paint the future as easy. It paints it as competitive, personalized, AI-aware, and increasingly professional. That is actually good news. Mature channels reward quality. And quality, thankfully, still beats noise.

So yes, the inbox is having a moment. But this is not a brief fling. It looks a lot more like a long-term relationship with strong metrics, good boundaries, and a healthy respect for subscriber preferences.

Experience from the field: what these newsletter trends look like in real life

Here is the part many reports hint at but do not always say out loud: running a successful newsletter in 2025 feels a lot like running a tiny media company with a permanent deadline and a very opinionated audience. The theory sounds clean. The practice is gloriously messy.

Teams usually start by assuming the hardest part will be writing. It rarely is. Writing matters, of course, but the real challenge is consistency with relevance. Plenty of newsletters can publish on time. Far fewer can publish on time and make readers feel like opening was the right choice. That is why HubSpot’s emphasis on personalization and sharp editorial focus feels so true in practice. Readers do not reward effort. They reward usefulness.

Another common experience is discovering that growth often comes from unexpected places. Many newsletter operators spend months tweaking subject lines, only to realize that their biggest growth spurts come from partnerships, guest appearances, brand mentions, or readers forwarding editions to coworkers. That lines up perfectly with the report’s finding that word of mouth is such a powerful driver. Forwarding is still one of the internet’s quiet superpowers.

There is also a practical lesson buried in the report’s channel data. Publishing beyond email sounds exciting until someone on the team has to repurpose the newsletter for LinkedIn, create social snippets, rewrite the headline, crop the visuals, and somehow avoid sounding like a robot in every format. Multi-channel strategy is effective, but it does create more work. The operators who manage this well tend to build repeatable systems. They know which parts of an edition can become posts, which insights can become short videos, and which quotes are likely to spark replies. They do not reinvent the wheel every Tuesday morning while staring into the void.

AI helps here, but only when used with discipline. In real workflows, AI is best at the unglamorous jobs: organizing rough ideas, summarizing source material, suggesting alternate headlines, cleaning up structure, and speeding up first drafts. It is much worse at instinct, timing, taste, and tone. Experienced newsletter teams learn this fast. The fastest route to a forgettable edition is outsourcing the voice entirely. The best route is using AI to clear the underbrush so the writer can focus on what only a human can do: judgment, humor, specificity, and perspective.

One more experience stands out across the industry: monetization gets easier the moment a newsletter stops trying to monetize everybody the same way. Some audiences respond to sponsorships. Others buy services, courses, memberships, events, or premium research. The smartest operators treat monetization as an extension of audience fit, not a generic ad slot problem. That is why HubSpot’s revenue findings feel credible. Personalization is not just an engagement tactic. It is a business model advantage.

In short, the lived reality matches the report. The best newsletters are not just well written. They are well positioned, well distributed, well measured, and unmistakably human. That is the real state of newsletters in 2025.

Conclusion

HubSpot’s 2025 State of Newsletters Report makes one thing crystal clear: newsletters are no longer simple email blasts with better manners. They are strategic, high-value media assets powered by audience insight, distinct voice, smart distribution, and increasingly thoughtful use of AI. The pros are not winning by sending more noise. They are winning by sending more relevance.

For brands, creators, publishers, and marketers, the message is simple. Build trust. Earn attention. Personalize with purpose. Distribute like a modern media brand. And keep the human point of view at the center, because in a future full of automation, authenticity may be the most valuable feature of all.