You can update it in the customer center, @kentkrueger. 

Here's how: 

1. ​​​​​​​Go to the Customers menu and then Customer Center.
2. On the Customers & Jobs tab, double-click the customer you want to edit.
3. Go to the Address Info tab and update all the necessary information. 
4. Click OK to save. 

In case you're referring to the primary contact on your QuickBooks Account, here's an article for more information on how to update it to the new one: Change or update Primary Contact on your QuickBooks Account. 

Let me know if there's anything that I can help. I'm always here to assist.