- Click Setup.
- Navigate to Administration Setup > Company Setup> Company Information.
- There is a Salesforce.com Organization ID field starting with 00Dxxx. This is your Salesforce Org ID.
Tip: Type 'company' in the search bar above the menu.
Note: The Org ID of your production environment is unique from your Sandbox Org ID. Whenever a Sandbox is refreshed, a new Org ID is established.