Can I filter the recipients of Email Notifications

We want to be able to send notifications to different recipients depending on the response in a particular field.

For example, the field is REGION and if the submitter selects COLUMBUS, we want those to go to "Shaun" as well as existing recipients.

You can archive that by creating conditional Email Notification. Inside of this guide you can find how to send email Notification based on user selection: 

https://www.jotform.com/help/167-How-to-Send-Email-Based-on-Selection 

Hope this will help. Let us know if you need further assistance.