How to remove your Nextdoor account
Nextdoor.com does not have a removal option other than sending them an email requesting removal. https://help.nextdoor.com/customer/portal/articles/805273-removing-your-account
Helpful Trick: Removing online data
Helpful Trick: Remove third-party logins
If you signed up for Nextdoor using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Nextdoor. Click here to find out how.