Service: Tumblr is a microblogging platform and social networking website.
How To Delete An Account:
1. Log in to Tumblr
2. Visit the primary blog’s “Settings” page or “Account Settings” page.
3. Scroll down to the bottom of the page and click “Delete account.”
4. Re-enter email and password and select “Delete Everything.”
Tumblr official page on closing an account. (Note: You must be logged in to access this page.)
Related Article: How To Close Online Accounts