AWS Region is a separate geographical area where AWS has multiple data centers called Availability Zones (AZs).

Each Region is independent and isolated from other Regions. This provides:

• Fault isolation — problems in one Region don't automatically affect another.
  


• Data residency — you can choose where your data is stored.
  


• Lower latency — choose a Region closer to your users.
  


• Disaster recovery — applications can be deployed across multiple Regions.