EMAIL MARKETING · MIGRATION GUIDE

Switching from Constant Contact to Mailchimp

Mailchimp publishes a step-by-step guide for moving from Constant Contact, but there is no one-click importer: you export each list to CSV, import it into a single audience, and rebuild templates, segments and automations.

Jump to migration steps Read the full comparison

By Bill Belcamino · Last updated September 18, 2026 · Our methodologyResearched and fact-checked by the HelpCompare team

Switching from Constant Contact to MailchimpVerified Sep 18, 2026

Quick verdict: Export each Constant Contact list to CSV (you can export by list, segment or tag), then import into one Mailchimp audience and recreate your lists as tags, groups and segments — Mailchimp recommends a single audience. Export the HTML of your email templates to rebuild them, then duplicate and test segments and automated flows. Remember that Mailchimp counts unsubscribed contacts toward your bill; archive them to keep costs down.

Current Contact / Record Count 25,000

Active User Seats 10

Estimate assumes: 1 hour of data-mapping/cleaning labor per 2,000 records, a blended $75/hr ops rate, tiered migration & cleaning tooling fees, and 4 hours of retraining per seat at a $45/hr fully-loaded rate.

Estimated Migration Time —

Data Friction Rating —

Total Hidden Switching Cost $0

Why teams move from Constant Contact to Mailchimp

A free plan and cheaper mid-size tiers

Mailchimp has a free plan for 250 contacts, and from 501 contacts its Essentials and Standard plans cost less than Constant Contact’s on monthly prices.

More seats on budget plans

Mailchimp Essentials includes 3 seats and Standard 5, against 1 and 3 on Constant Contact Lite and Standard.

Generative AI included

Mailchimp includes its generative AI features on Standard and Premium at no additional cost.

How the migration actually works

Mailchimp’s help centre has a dedicated guide for this move. It is a manual, multi-step process, so start by recording what you have in Constant Contact.

Step	What you do
1Record your Constant Contact setup	Note how many contacts and lists you have, your custom fields, your templates and your automations.
2Export contacts	Export each Constant Contact list to a CSV or Excel file; you can also export by segment or tag.
3Import into a single audience	Import the files into one Mailchimp audience, turning each former list into a tag so you can still target it.
4Recreate groups and segments	Use groups for contact preferences and segments for filters, and duplicate and test the segments you relied on.
5Rebuild templates	Export the HTML code for each Constant Contact template and re-create it in Mailchimp.
6Rebuild automations and integrations	Recreate your automated flows in Mailchimp’s Customer Journey Builder and reconnect your integrations.
7Archive unsubscribes	Mailchimp counts unsubscribed and non-subscribed contacts toward your bill; archived, cleaned and deleted contacts do not count.

What this path doesn’t do for you:

Nothing moves automatically: automations, templates, segments and reporting history all have to be rebuilt or saved separately. Keep unsubscribed contacts in Mailchimp so they are suppressed, but archive them, otherwise they count toward your plan’s contact total.

Pricing side by side

Plan	Constant Contact	Mailchimp
Free	No, 30-day trial, 100 sends	250 contacts, 500 sends a month
Entry paid	Lite — $12/mo (500 contacts, 1 user)	Essentials — $13/mo (500 contacts, 3 seats)
Mid	Standard — $35/mo (500 contacts, 3 users)	Standard — $20/mo (500 contacts, 5 seats)
Top	Premium — $80/mo (500 contacts, unlimited users)	Premium — $350/mo (10,000 contacts, unlimited seats)
Contacts billed	Highest number of active contacts	Subscribed, unsubscribed and non-subscribed
Trial	30 days, no card; 30-day refund	14 days (Standard or Essentials)

Monthly list prices at 500 contacts, checked on mailchimp.com/pricing and constantcontact.com/pricing on September 18, 2026. Both scale by contact count. Confirm current rates before you buy.

Feature parity check

Capability	Constant Contact	Mailchimp
Native import from the other tool	Built-in Mailchimp integration (for the reverse move)	Manual CSV, with a dedicated help guide
Free plan	None — 30-day trial	250 contacts, 500 sends a month
Contacts billed	Highest active count	Subscribed, unsubscribed, non-subscribed
Send limit	10x / 12x / 24x contacts	10x / 12x / 15x contacts
SMS	500/mo on Premium; from $10/mo on Lite and Standard	Add-on from $20/mo
Users	1 / 3 / unlimited	3 / 5 / unlimited

Going the other direction, or want the full comparison first?

Read the Mailchimp vs Constant Contact comparison Switching from Mailchimp to Constant Contact instead?

Verified data

Security & access: what changes when you switch

Security, offline and access rules that differ between Constant Contact and Mailchimp. Rows where both tools are the same (3) are left out; the full side-by-side is on each tool’s page: Constant Contact, Mailchimp.

What changes	Constant Contact (today)	Mailchimp (after)
ISO/IEC 27001	Not published	Certifiedsource
Single sign-on (SAML/OIDC)	YesTeams & Partners multi-account (OIDC-based, not SAML)source	Not published
Two-factor authentication	Yessource	YesEnforcement: Any multi-user plan (automatic once an Owner or Admin enables 2FA)source
Data residency choices	Not published	US onlysource
Encryption	TLS 1.2 over HTTPS in transit; passwords and card numbers encryptedsource	TLS 1.2+ in transit; at-rest encryption not statedsource

Editorial assessment

Before you cut over

You have single sign-on in Constant Contact but we found none documented for Mailchimp. Plan how people will sign in, and how you will remove leavers, before cut-over.

Checked September 19, 2026 against each vendor’s own trust center, help docs and app pages. Hover or tap “source” to see the exact wording we relied on. “Not published” means we could not find the vendor saying it on its own site; it doesn’t mean the feature is missing. Plan names are the lowest plan the vendor says includes the feature. Security · Offline · Remote vs office · Download the data

Frequently Asked Questions

Does Mailchimp have a Constant Contact importer?

No one-click importer. Mailchimp’s guide has you export each Constant Contact list to CSV and import it, then rebuild templates, segments and automations.

Should I create one Mailchimp audience per Constant Contact list?

Mailchimp recommends a single audience, using tags, groups and segments to organise contacts, because separate audiences can mean paying for the same contact twice.

How do I move my email templates?

Export the HTML code for each template from Constant Contact and re-create it in Mailchimp.

Will unsubscribed contacts cost me money on Mailchimp?

They count toward your contact total unless you archive them. Archived, cleaned and deleted contacts do not count.

Will Mailchimp cost less?

From 501 contacts, Mailchimp’s Essentials and Standard plans cost less than Constant Contact’s on monthly prices at every tier we checked. At 500 contacts or fewer, Constant Contact Lite is $1 cheaper, and Mailchimp’s free plan covers up to 250 contacts.

Canonical data for the tools on this page

Every pricing fact, rating, AI billing model and switching guide we hold on each tool, on one page, with the date each figure was last verified.

Constant ContactPricing, free plan, AI cost & every comparison›

MailchimpPricing, free plan, AI cost & every comparison›

Mailchimp vs Constant ContactHead-to-head comparison beehiiv vs MailchimpHead-to-head comparison ActiveCampaign vs MailchimpHead-to-head comparison HubSpot vs MailchimpHead-to-head comparison Keap vs MailchimpHead-to-head comparison Mailchimp vs KlaviyoHead-to-head comparison

Mailchimp to Constant ContactSwitching guide beehiiv to MailchimpSwitching guide Mailchimp to beehiivSwitching guide HubSpot to MailchimpSwitching guide Mailchimp to HubSpotSwitching guide ActiveCampaign to MailchimpSwitching guide

Sources

Prices on this page were recorded from each vendor’s own pricing page on the date shown at the top of the page. Vendors change pricing often — check the live source before you buy.

Constant Contact pricing (constantcontact.com)
Mailchimp pricing (mailchimp.com)

Every figure is also in our open dataset (JSON and CSV, CC BY 4.0), with its source page and verification date. See how we research pricing.

Source links on this site are checked every month; last check October 4, 2026. How sources are checked.

Bill Belcamino

Founder and author, HelpCompare

Engineer by training, operator by experience, marketer by choice. Bill spent eight and a half years as an engineer at HP, was COO of Auctiva (the number one third-party selling platform on eBay, past 200,000 users) and ran Google’s $70M/year search syndication partnership at Alot.com. Then he spent 13 years building his own web properties with his own money at stake. He has bought, trialled, integrated and cancelled more SaaS tools than he can count, and started HelpCompare because the real cost of switching tools is the part nobody covers.

“I’ve sat on both sides of the table: the agency recommending the tool and the client paying for it.”

Researched and fact-checked by the HelpCompare team. Pricing on this page was last verified on September 18, 2026. No paid sponsorships, no affiliate commissions.

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