Market segmentation: definition, types, examples and how to do it

Market segmentation is the process of dividing a broad market into smaller, more homogeneous groups — called segments — based on shared characteristics, needs, or behaviours. It's the foundation of effective targeting: without it, you're marketing to everyone and resonating with no one.
Market segmentation in one sentence: splitting a market into meaningful groups so you can market to each one differently.
This article lays out what market segmentation is, why it matters, the main types (demographic, psychographic, behavioural, geographic), real brand examples, and a step-by-step process you can follow.
Think of a market segmentation as your map. (And for this analogy to work, think of yourself as a sailor.) Before you set sail - writing your marketing brief, targeting consumers, and communicating key messages - you need to know what's out there (i.e. what your market looks like).
🗺 If you don't have a map, all that other stuff is unlikely to succeed. Yes, you may accidentally stumble across new, fertile lands. But you'll much more likely go missing in the Bermuda Triangle (of ineffective marketing).
Pro tip: Once you've got a segmentation, make sure to share it with your agency. That's as easy as uploading it to your Brand Intelligence in Briefly.
What is a Market Segmentation?
Market segmentations act like a map of the market. They allow you to take a meaningless mass of people and break them down into smaller, meaningful groups. This map will then pave the way for your marketing strategy - where you decide who you're going to target, how you're going to target them, and how you should position your brand to them.
Two things to remember when thinking about market segmentations:
A market segmentation is about the market. It's not about your firm.
So, don't jump ahead and start thinking about who you're targeting or who your ideal customer is, that comes later.Market segmentations help you avoid the dreaded "average".
Without a good segmentation, you're often left with a single composite measure of the market that either tells you very little or actively misleads you (e.g. the average Brit has just under one testicle).
What is a Market Segment?
A market segment is internally homogenous (on the characteristics that matter) and externally heterogeneous. In plain English, the people in each segment should share a set of common characteristics (e.g. they want or need the same stuff, they do similar things, they think in similar ways), and those same characteristics should set them apart from consumers in other segments.
The four main types of market segmentation

There are four main types of market segmentation you'll see in practice: demographic, psychographic, behavioural, and geographic. Most modern segmentations blend two or three of them, because any single lens leaves blind spots. Here's what each one looks like, with a brand doing it well.
Demographic segmentation
Demographic segmentation groups people by external, observable attributes: age, gender, income, education, occupation, household size. It's the easiest data to get hold of, which is why it's the default starting point for most marketers.
Nike is a textbook example. Its product lines are cut along demographic lines — Nike Women's, Nike Kids, Nike Men's — each with distinct silhouettes, sizing, and campaigns. A Nike Women's running shoe isn't just a smaller men's shoe; it's engineered around a different foot shape and marketed with different ambassadors. Demographics alone won't tell you why someone buys, but they're useful for structuring ranges, pricing tiers, and media buys where reach is the priority.
Psychographic segmentation
Psychographic segmentation groups people by what they believe and how they live: values, attitudes, interests, lifestyles, personality. It's harder to gather (you usually need primary research), but it tells you far more about why someone buys than demographics ever will.
Patagonia is the best-known example. Its core segment isn't "outdoor enthusiasts aged 25-54" — it's environmentally-conscious people who see their purchases as a political act. That's why Patagonia runs "Don't Buy This Jacket" ads, donates 1% of sales to environmental causes, and pays customers to repair old gear. The demographics are incidental; the shared worldview is what makes the segment coherent.
Behavioural segmentation
Behavioural segmentation groups people by what they actually do: purchase history, frequency, loyalty, usage occasion, channel preference, stage in the buying journey. It's often the most actionable type because behaviour is the strongest predictor of future behaviour.
Amazon runs one of the most sophisticated behavioural segmentations in the world. Prime members are treated as a separate segment from casual shoppers, with different recommendations, different promotional emails, and different retention programmes. Within Prime, Amazon further segments by purchase frequency, category mix, and subscription behaviour. The result is a machine that knows when you're about to run out of dog food before you do.
Geographic segmentation
Geographic segmentation groups people by where they live: country, region, city, climate, urban versus rural, or market-specific variables like population density. It matters any time local context changes what people want or how they use your product.
McDonald's is the classic case. The menu localises heavily — McSpicy Paneer in India, McLobster in Atlantic Canada, Teriyaki Burger in Japan, McRice in the Philippines. The core brand stays constant; the product lineup bends to local taste. Geography is rarely sufficient on its own for a full segmentation, but it's an essential overlay once your market crosses cultural or climate boundaries.
Real-world segmentation examples
Theory is useful, but seeing how real brands segment their markets makes it click. Here are three more companies that do it well - and differently.
Coca-Cola - Coca-Cola segments by occasion and need state. Diet Coke targets health-conscious adults during lunch. Coca-Cola Zero targets younger consumers who want full flavour without sugar. And original Coca-Cola focuses on shared moments and celebrations. Each product exists because the segmentation revealed distinct groups with different motivations.
Netflix - Netflix uses behavioural segmentation at scale, grouping viewers not by age or location but by viewing patterns. They've identified over 2,000 "taste communities" - clusters of people who watch similar content. This drives everything from what shows get commissioned to how thumbnails are displayed on your homepage.
Spotify - Spotify blends behavioural and psychographic data to build its "taste profiles," which in turn power Discover Weekly, Wrapped, and most of its advertising offers. Two users in the same city and age bracket will see completely different home screens because the segmentation sits on listening behaviour, not demographics.
How to segment your market in 5 steps
Building a segmentation from scratch sounds daunting, but the process is straightforward if you work through it in order. Skip a step and you'll end up with segments that are either too broad to act on or too narrow to matter.
Step 1: Define your total addressable market
Start by drawing the outer boundary. Who could conceivably buy what you sell? Be specific about category and geography: "adults in the UK who drink coffee at home" is a usable market; "coffee drinkers" is not. If you're a B2B company, define the universe of companies that could plausibly be customers — industry, size, region. Everything downstream depends on getting this right, so don't rush it.
Step 2: Choose your segmentation variables
Decide which dimensions you'll cut the market on: demographic, psychographic, behavioural, geographic, or (usually) a combination of two or three. Behavioural plus psychographic is the most common modern pairing because it tells you what people do and why. Pure demographic segmentations rarely produce sharp enough segments to drive strategy on their own.
Step 3: Research and gather data
Pull data from every source you can justify: customer surveys, your CRM, third-party research panels, social listening, sales interviews, web analytics. A good segmentation triangulates between sources — quantitative data sizes the segments, qualitative data gives them a soul. See our guide on gathering marketing insights for the full playbook.
Step 4: Build the segments
Cluster the data and name the groups. Three to seven segments is the sweet spot — fewer and they're too broad to be useful, more and they stop being actionable. Each segment needs a memorable name, a profile (size, value, defining behaviours, key attitudes), and a clear description your sales and product teams can actually use.
Step 5: Prioritise and target
Not every segment deserves investment. Score each one on three criteria: size (is it big enough to matter?), accessibility (can you reach them efficiently?), and fit (does your product actually solve their problem?). The segments that win on all three become your targeting priorities; the rest get monitored or ignored.
With your segments defined, you can now describe your target audience in detail.
B2B market segmentation
B2B segmentation works on the same principles as B2C, but the variables are different. Instead of age and income, you're working with firmographics — industry, company size, revenue, headcount, technology stack, geography. Layer on behavioural variables like buying stage, product usage, and expansion patterns, and needs-based cuts that group accounts by the job they're trying to get done.
HubSpot is a clear worked example. Its SMB tier (Starter, Professional) is built for small marketing teams who want an all-in-one tool out of the box. Its Enterprise tier is a different product — same platform, but with SSO, custom objects, and dedicated support — because an Enterprise buyer's needs, buying committee, and procurement process look nothing like an SMB's. Same market, two segments, two go-to-market motions.
How Do I Know if My Segmentation is Good?
Most companies will buy a segmentation off the shelf or employ a research firm to build one for them. And while it may require expertise to create a segmentation, it's important as a marketer to be able to identify whether or not the segmentation is useful for your business.
Here are some key questions to ask yourself:
Is the whole potential market included?
Remember, a segmentation is a map of the market. It shouldn't be about your firm and your customers.Can a customer belong to only one segment?
If a customer can belong to multiple segments, then the segmentation has failed (the segments are not externally heterogenous).Are the names of the segments based on consumer behaviour?
Names matter because often the people using your segmentation (sales, product, finance) will only read or remember the name.Is the segmentation sized and valued?
If you add all the segments up (population and market size), does it make sense?Does it make sense to you?
Segmentation shouldn't be theoretical. If you gave your segmentation to your Head of Sales or your Customer Success manager, would they be able to identify which of your current customers fit into which segment?
If the answer to all of these questions is 'yes', then you should have a robust map of your market. Now it's time to figure out who you're going to target.
💎 If you're using Briefly, you can upload your segmentation to your personal Brand Intelligence. Briefly will understand your segments and prompt you with smart questions every time you write a brief — so you won't need to keep reopening the docs.
Once you've chosen your target segment, you're ready to brief your creative team with a clear picture of who they're talking to.
Frequently Asked Questions
What is market segmentation?
Market segmentation is the process of dividing a broad market into smaller, more homogeneous groups based on shared characteristics, needs, or behaviours. The goal is to find clusters of people who are similar enough to each other — and different enough from everyone else — that it makes sense to market to them differently. Good segmentation gives you a map of the market so you can choose which groups to target, tailor positioning to what each group actually cares about, and spend your budget where it has the most impact. Without it, you default to generic messaging that resonates with nobody in particular.
What are the four types of market segmentation?
The four main types of market segmentation are demographic (age, gender, income), psychographic (values, lifestyle, attitudes), behavioural (purchase habits, usage, loyalty), and geographic (location, climate, market). Demographic data is the easiest to gather but the weakest predictor of behaviour on its own. Psychographic data explains why people buy. Behavioural data captures what they actually do. Geographic data overlays local context. The strongest segmentations combine two or three of these lenses — typically behavioural plus psychographic, with demographic and geographic as overlays for reach and localisation.
What is an example of market segmentation?
A classic example of market segmentation is how Coca-Cola splits its portfolio: Diet Coke targets calorie-conscious women, Coke Zero targets young men who want the taste without the sugar, and classic Coke targets everyone else. Each variant exists because the segmentation revealed a distinct group with a distinct motivation. Nike does something similar with Nike Women's, Nike Kids, and Jordan — same brand, different segments, different products. Netflix takes it to an extreme, clustering viewers into over 2,000 "taste communities" based on what they actually watch, and using those segments to decide which shows to commission and which thumbnails to show you.
What is market segmentation theory?
Market segmentation theory is the marketing principle that a heterogeneous mass market can be broken into smaller, more homogeneous segments with distinct needs, and that tailoring marketing to each segment produces better returns than targeting the whole market uniformly. The idea was formalised by Wendell R. Smith in his 1956 paper "Product Differentiation and Market Segmentation as Alternative Marketing Strategies", published in the Journal of Marketing. Smith argued that mass production had created an illusion of a single mass market, when in reality demand was fragmented across groups with different preferences. Seventy years later, the theory remains the foundation of modern targeting, positioning, and brand strategy.
What is the difference between market segmentation and target audience?
Market segmentation is about the market — it describes all the meaningful groups that exist; a target audience is about your campaign — it's the specific segment (or slice of one) you choose to speak to. Put another way: segmentation is the map, targeting is the route. You segment once (or refresh every few years) to understand the whole landscape. You choose a target audience every time you write a brief, based on which segment matters most for the job in hand.
How do you write a market segmentation for a brief?
A segmentation for a marketing brief should include: the variables you segmented on, each segment's name, size, and defining characteristics, and a clear statement of which segment(s) the brief is targeting and why. Keep it tight — one page is usually enough. Lead with the chosen target segment, then summarise the others so the creative team understands who you're not talking to. Include a short profile of the target segment: demographics, key attitudes, behaviours, media habits, and the "job to be done" they're hiring your product for. A brief reader should finish the section knowing exactly who they're writing for.
Of course, if you want to make writing a great brief easy, you can always try Briefly.