You need to know the geographic location of our datacenters.
You can see a summary of all of our Regions by running the following the Heroku CLI command:
For full details about all of our Regions, including the local City and Country:
heroku regions --json
For more information about the json returned, please see our API Platform documentation. Common Runtime regions are denoted by
Please note that the regions cover where a dyno will run but there are additional factors relating to data residency. For more information please see https://devcenter.heroku.com/articles/regions