Contacts are stored in the same database file as the call logs for most Android devices.  The contacts and/or people tables should be examined for contact information. It appears that in Android 10 and 11 that data was an additional table of interest.  Another table is the raw_contacts table. This table stores contact information to include names, email addresses, and phone numbers and associates them with an application, the device, or to a Google account. Should a contact have a picture associated with it, a .jpg file is included and is named to match the contact. The table deleted_contacts stores a contact_id and deleted timestamp for the removed contact.  Keep in mind as Android versions update, additional tables may be added that are not parsed by mobile forensic tools.

Additional contacts may be located in icing_contacts.db and plustcontacts.db for Google+ as well as third-party applications.