How to automate audience segmentation in Mailchimp

How to Automate Audience Segmentation in Mailchimp

Mailchimp provides three segmentation tools: tags (labels applied to contacts), groups (subscriber-chosen preferences), and segments (dynamic filter-based lists). As of April 2026, basic segmentation is available on all plans; advanced segmentation (combining multiple conditions with nested AND/OR logic) requires Standard ($13.99/month for 500 contacts) or above.

Segmentation Methods

Tags (Manual or Automated)

Tags are labels applied to contacts for categorization. Apply tags automatically using:

• Customer Journeys: Add a tag action in any journey step (e.g., after opening 5 emails, tag as "Engaged")
• Signup forms: Map form fields to tags so subscribers self-categorize at signup
• Zapier/Make: Apply tags from external events (purchase, form submission, CRM update)
• E-commerce sync: Shopify/WooCommerce purchase data automatically tags buyers by product category

Groups (Subscriber Preferences)

Groups let subscribers choose their interests on signup forms or preference centers. Example groups: "Product Updates," "Industry News," "Weekly Deals." Use groups to let subscribers control which emails they receive.

Segments (Dynamic Filters)

Segments are dynamic lists that update automatically as contacts match conditions:

1. Go to Audience > Segments > "Create Segment"
2. Build conditions using:
   • Email engagement: Opened/clicked in last 30 days, never opened, unsubscribed
   • Purchase behavior: Bought product X, spent over $100, purchased in last 90 days
   • Profile data: Location, signup date, birthday month, custom merge fields
   • Campaign activity: Clicked specific link, received specific campaign

Automation-Driven Segmentation Workflow

Step 1: Define Engagement Tiers

• Active: Opened or clicked in last 30 days
• Lapsed: No opens in 31-90 days
• Inactive: No opens in 90+ days

Step 2: Create Customer Journeys per Tier

• Active segment → Continue regular newsletter cadence
• Lapsed segment → Enroll in re-engagement series (3 emails over 2 weeks)
• Inactive segment → Send final "We miss you" email → If no open, remove tag "Active" and add tag "Sunset"

Step 3: Purchase-Based Segmentation

• First-time buyers → Welcome series with product education
• Repeat buyers (3+ purchases) → VIP segment with early access offers
• Cart abandoners → Retargeting segment for recovery emails

Predicted Demographics (Standard Plan)

Mailchimp's predictive analytics auto-segments contacts by:

• Predicted gender: Based on first name analysis
• Predicted age range: Based on behavioral signals
• Purchase likelihood: Predicted probability of next purchase

Practical Example: Ecommerce Store

Limits (April 2026)

• Free plan: Basic segments with up to 5 conditions
• Essentials ($13/month): All segment types, no nested logic
• Standard ($13.99/month): Advanced segments with nested AND/OR logic
• Premium ($350/month): Unlimited segments with comparative reporting