From their FAQ: (http://help.codecademy.com/customer/portal/articles/416872)
If you still want to delete your account, please contact us through the link on the right with the email address associated with your account. For security reasons, we will need to verify that these requests have come from the email address that’s on your Codecademy account. Please also note that once your account is deleted we will not be able to retrieve it.
URLS:
http://code-academy.com
