Sign in to iCloud.com with your Apple ID
Open Account Settings
Select the data or service you want to remove
Delete photos, files, notes, contacts, or other content manually
Empty the Recently Deleted folder
On iPhone or iPad, go to Settings
Tap your name
Tap iCloud
Turn off iCloud sync for the apps you want
Choose Delete from My iPhone when prompted
On Mac, open System Settings
Click your Apple ID
Click iCloud
Turn off iCloud services you want to remove
Remove the device from your Apple ID if needed
To delete the entire iCloud account, go to privacy.apple.com
Sign in with your Apple ID
Choose Request to delete your account
Follow the on-screen steps to confirm deletion