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What Is Segmentation?
Email Marketing
Updated 18 September 2026
Quick Answer
Segmentation is dividing your audience or customer base into distinct groups based on shared characteristics — like behavior, location, or purchase history — so you can tailor messaging to each group specifically.
Segmentation vs. Target Audience — What's the Difference?
| Segmentation | Target Audience | |
|---|---|---|
| What it does | Divides an existing audience into distinct sub-groups | Defines the overall group being marketed to in the first place |
Why It Matters
- A single generic message rarely resonates equally well with everyone — segmentation lets you tailor messaging to what actually matters to each specific group.
- It often significantly improves email and ad performance compared to sending the same message to everyone.
How It Works
- Your audience or customer list is divided based on a meaningful shared characteristic — past purchases, location, engagement level.
- Each segment receives messaging tailored to their specific situation or interest.
- Performance is compared across segments to refine the approach further.
Key Takeaways
- Segmentation divides an existing audience into meaningful sub-groups.
- Tailored messaging per segment typically outperforms one generic message.
- Most marketing platforms include basic segmentation tools already.
Frequently Asked Questions
Do I need special software to segment my audience?
Most email marketing and ad platforms include basic segmentation tools as a standard feature.
What's a simple way to start segmenting?
Splitting by past purchase behavior (bought before vs. never bought) is a common, accessible starting point.
Is segmentation only useful for email marketing?
No — it applies to ad targeting, content strategy, and any situation where different groups have meaningfully different needs.