Need help un-syncing Google Contacts from school gmail
You can uncheck a box in your contact setting.

Open your iPhone or iPad's Settings app.
Tap Accounts &amp; Passwords and then Add Account and then Google.
Enter your email and password.
Tap Next.
Switch &quot;Contacts&quot; off.
At the top, tap Save.

You might have to remove the contacts after you do this on the device you are trying to un-sync but the original contact your created will still be available on other devices. They where uploaded into the cloud and once you turn the cloud service off the contact info will not sync.