If you want to migrate your Droplet to another datacenter region, you need to create a snapshot of your Droplet and then create a new Droplet from the snapshot in the new datacenter region. Snapshots are complete copies of your Droplet’s hard disk that are saved as a disk image that you can create additional Droplets from. Snapshots only contain the data that resides on the disk at the time the snapshot was taken.
To do migrate a Droplet using a snapshot, see How to Migrate Droplets Using DigitalOcean Snapshots.